Last updated: May 21, 2026 | Version: 1.0
These Terms of Service ("Terms") govern your access to and use of the Inner Battery application (the "App"), available at innerbattery.com.
Operator:
Inner Battery s.r.o.
Company ID (IČO): 24526746
Registered office: Nové sady 988/2, Staré Brno, 602 00 Brno, Czech Republic
Contact: hello@innerbattery.com
The cost of using remote communication (internet connection) does not differ from the basic rate charged by your service provider.
By accessing or using the App, you agree to these Terms.
For the purposes of these Terms:
A contract for the provision of digital content is formed between the User and the Operator upon use of the App.
In the case of paid features, the contract is concluded at the moment the payment is successfully confirmed by the payment processor (Paddle).
Inner Battery is a progressive web application (PWA) that enables users to:
The App is provided as an online digital service.
The Operator reserves the right to modify, suspend, or discontinue any part of the App at any time without liability.
The Operator reserves the right to suspend or terminate accounts violating these Terms.
Anonymous senders. The App allows messages to be sent via a shared link
(e.g., /send/[token]) without registration. Before sending a message, the
anonymous sender is shown a visible notice with direct links to these Terms and the Privacy
Policy; by sending the message the sender confirms they had the opportunity to review the
terms and consents to them (informed consent within the meaning of GDPR Art. 7). Anonymous
senders are technically rate-limited (message count, device hash) and are subject to §5
Acceptable Use, including the Operator's right to moderate and block.
Receiving messages. A User receives messages: (a) via a message-request link they created and shared (single or bulk; including anonymous senders via that link); (b) from users they are connected with (e.g., after sending someone a gift battery and that person connecting with them) — directly account-to-account; and (c) from the Operator — system and operational in-app messages (welcome/onboarding, safety, notices) related to the operation of the service. The App does not deliver unsolicited messages from strangers who have neither the link nor a connection. Connections can be removed at any time and user senders can be blocked (§5). The Operator does not send marketing communications without separate consent (see the Privacy Policy).
Message-request link modes. (i) Single-use links automatically deactivate after one message is delivered or 30 days from creation, whichever comes first. To receive an additional message, the recipient must generate a new link. (ii) Multi-use links (available only with active Diamond Role) are valid for 72 hours or until 300 messages have been delivered, whichever comes first, with a short-term cap of 20 messages per 5-minute window per device (identified by SHA-256 hash). (iii) Gift links remain valid for 365 days from redemption by the recipient.
Message activation gate. Messages you receive remain hidden in your inbox until you actively open them. The sender does not know whether you have viewed their message until you actively unlock it. Opening a message reveals its content to you and notifies the sender via a timestamp (lastMessageSeenAt). This mechanism gives you full control over when you engage with incoming messages.
Friend-to-friend messaging limit. If you have sent a message to a friend who has not yet opened it, you cannot send another message until they open the first. Once the recipient opens the message, a 3-day cooldown begins; after it elapses you may send another message. If the message expires (72 hours after being opened) without further activity, the cooldown is waived. This limit exists to prevent spam and preserve the quality of communication.
Connecting between users (bilateral consent). Connecting users (so-called "friendship") always requires explicit consent of both parties — there is no automatic connection. Redeeming a gift battery does not by itself create a connection; the recipient must explicitly click the connection offer in the App. Connections can be initiated in two ways:
Anonymous senders (without a registered account) cannot initiate connection — sign-in is required to connect. After connecting, both parties can send messages directly account-to-account (with anti-abuse limits per §5). The connection can be revoked at any time unilaterally (the person moves to the "Non-friends" list, where the relationship can be restored by clicking "Connect") or bilaterally by banning the message author (§5).
Content of received messages. The recipient acknowledges that messages are created by users (including anonymous senders via a shared link) and are not pre-moderated by the Operator. The recipient receives such content at their own discretion; any inappropriate message can be deleted at any time and its author reported or blocked (§5). The sender is responsible for message content (§6), not the Operator (§9).
Users agree:
The Operator may moderate, remove content, or suspend accounts at its discretion. Suspension or termination of an account does not entitle the User to any compensation, including any refund of paid subscription fees.
The App allows Users to report inappropriate content from other Users (the "ban author" feature). For abuse moderation purposes, an audit record of each report is retained (including the content of the reported message) for a maximum of 90 days. Details are in our Privacy Policy, "Safety and abuse moderation" section. Users with repeated patterns of unjustified reports, or who receive repeated bans from different users, may be reviewed and restricted in case of rule violations.
Reporting illegal content (DSA Art. 16). If you encounter content in the App that you believe is illegal (copyright infringement, CSAM, hate speech, terrorism, etc.), contact us by email at dsa@innerbattery.com with the subject "DSA report". For proper handling of your notice under DSA Art. 16(2), please provide:
We will acknowledge receipt of the notice without undue delay. We will evaluate the notice within 72 hours and, if confirmed, will immediately remove the content, block the author, and (in the case of CSAM or other serious criminal offences) refer the matter to law enforcement. We will inform you of the outcome.
Disconnect and Ban — two distinct operations. (i) Disconnecting from a friend ("Remove from friends"): the user moves from your friends list to the "Non-friends" list (acquaintances) and disappears from your active friends list, but the connection edge persists in the database with metadata (lastMessageSeenAt, banCount) so that throttle limits and bypass prevention (via disconnect-reconnect cycles) continue to function. The relationship can be restored by explicitly clicking "Connect" in the "Non-friends" section. (ii) Banning a message author: in addition to the disconnect effect, the banned user is bilaterally hidden (hiddenFromStation=true flag on both sides), the message is deleted from your inbox, banCount increases by 1, and a 90-day audit record is created (including the content of the reported message) for review of repeated bans. (iii) Relationship metadata (userRelationships) is NOT deleted on disconnect or ban — it is deleted only upon full account erasure (Art. 17 GDPR). This is an intentional anti-abuse measure; its legal basis and retention period are described in the Privacy Policy, sections 1 and 6.
Statement of reasons and appeal against a ban (DSA Art. 17 + Art. 14). At the moment the restriction is imposed, the Operator delivers a statement of reasons to the User by email to the account address and also displays it in-app on the frozen screen. The User may submit an appeal via the in-app form or by email to appeal@innerbattery.com with the subject "Ban appeal" and account identification (account email, date of the event). The Operator will assess the appeal within 30 days of receipt (parity with the §7 complaints procedure; also fulfils the internal complaint-handling obligation under DSA Art. 14). If the ban is found to have been unjustified, the Operator will restore the relationship and delete the related audit record. To prevent abuse via repeated submissions, a new appeal against the same ban may be submitted at the earliest 7 days after the previous one; during the intervening period the form displays the pending-appeal status with the reference number.
As a hosting service provider within the meaning of DSA Art. 6, the Operator does not perform proactive content filtering or algorithmic decision-making about message content (no automated scanning of messages at send time, no keyword filter). Moderation is exclusively reactive, based on reports from recipients and on the internal anti-abuse mechanisms described in other sections of these Terms:
Artificial intelligence as an administrator assistance tool. To accelerate handling of reports, the Operator uses artificial intelligence (Claude running on Google Vertex AI in the EU multi-region): AI reads the reported content, generates a summary and a recommended action. All decisions about restrictions (warning, ban, restoration, appeal outcome) are made by a human administrator — AI is only an advisory tool, not an automated decision-making system within the meaning of DSA Art. 3(m) or GDPR Art. 22. Data sent to AI stays within the EU (zero-retention configuration, no training on content); processing is performed by Google (Vertex AI) as part of the existing processor relationship described in the Privacy Policy. Contact details of the reporting user (email, IP) are not sent to AI input — only the textual content and technical identifiers necessary for assessment.
The Operator retains moderation records for 90 days for review and defence purposes; see the Privacy Policy, section "Safety and abuse moderation" for details.
Users are solely responsible for content they submit.
By submitting content, Users grant the Operator a non-exclusive, worldwide, royalty-free license to use, store, display, reproduce, and process such content solely for the purpose of operating and improving the App.
The Operator does not claim ownership of user content.
Users may purchase a gift battery activating Diamond Role for a fixed period of 365 days. The service does not automatically renew. The contract for digital content is concluded for a fixed term corresponding to the activated license duration (365 days).
Activation of the gift battery by the recipient. After purchase, the buyer
receives a /gift/{token} link, which they share with the recipient out-of-band
(e.g., WhatsApp, email). The recipient activates the Diamond Battery by clicking the link and
(if they do not yet have an App account) signing up —
the 365-day validity is counted from the moment of activation by the recipient, not from the purchase. The buyer's right to a refund for an unredeemed token is set out in
the Refund Policy §3.
Payments are processed by Paddle.com Market Limited acting as Merchant of Record. By completing a purchase, you agree that:
Digital access is provided immediately upon successful payment. Gift tokens must be redeemed within 90 days of purchase.
All prices include VAT where applicable. The final price is displayed before payment confirmation.
By completing a purchase, you expressly consent that the performance of the contract (activation of premium features) will begin immediately upon successful processing of the payment by the payment service provider (Paddle.com), before the expiration of any withdrawal period.
You acknowledge that, in accordance with § 1837(l) of Czech Act No. 89/2012 Coll. (Civil Code), you have no statutory right of withdrawal under such circumstances.
Refund rights are governed by the separate Refund Policy.
Online withdrawal function. For unredeemed gift tokens, an online withdrawal function is available in the App at /refund — available to both authenticated and non-authenticated users (anonymous purchase → enter token + email from Paddle receipt → confirm via magic link in email) in compliance with §1829(1) of Czech Act No. 89/2012 Coll. (Civil Code), thereby satisfying Article 11a of Directive (EU) 2023/2673 effective 19 June 2026. The function is available throughout the 14-day withdrawal period. For direct upgrades (self-activation of Diamond Battery), the right of withdrawal has been waived by separate consent before payment — see §2 of the Refund Policy.
The App is provided in its current form without warranty of uninterrupted availability.
All App content (design, code, text, graphics) is protected by copyright law (Czech Act No. 121/2000 Coll. and equivalent international conventions). The Operator holds the economic rights to this content.
Users are granted a limited, non-exclusive, non-transferable license to use the App for personal purposes only. No rights are granted to copy, distribute, modify, or commercially exploit the App.
Personal data processing is governed by the separate Privacy Policy.
These Terms are governed by the laws of the Czech Republic.
Czech courts have jurisdiction over disputes arising under these Terms, unless directly applicable EU law or mandatory consumer protection rules of the consumer's country of residence provide otherwise (in particular Regulation (EU) No 1215/2012, Brussels I bis).
If you are a consumer residing outside the Czech Republic, you may benefit from mandatory provisions of your country of residence.
Nothing in these Terms limits any mandatory consumer protection rights applicable to you.
Global consumers. The App is available worldwide. Consumers from jurisdictions outside the EU may have additional mandatory rights under their local law (e.g., CCPA/CPRA in California, PIPA in Korea, PIPL in China, APPI in Japan, LGPD in Brazil, PIPEDA in Canada, Privacy Act in Australia). These mandatory rights are not limited by these Terms. See the Privacy Policy, section "International users", for details.
Language of communication. Communication with the Operator (including complaints, GDPR requests, and other notifications) may be conducted in Czech or English. The Operator accepts submissions in either language at hello@innerbattery.com. The application interface is localized into multiple languages (Czech, English, Slovak, Japanese, Chinese, Korean, and others), but binding contractual communication must be in Czech or English.
Language of the contract. These Terms are issued in Czech and English versions. The Czech version is the legally binding version. The English version is provided as a convenience translation; in case of any discrepancy, the Czech version prevails, unless mandatory consumer protection law of the consumer's country of residence requires otherwise. Section numbering and structural organization may differ slightly between the Czech and English versions due to linguistic specifics; the two versions are substantively equivalent in content.
Interface language versions. The App's user interface is offered in multiple languages. Only the Czech and English versions are authoritative and verified by the Operator. Other language versions are produced using machine translation and may contain inaccuracies or errors; the Operator does not warrant their correctness or completeness. In case of any ambiguity or discrepancy, the Czech (or English) version prevails. By using the App in any language, the User accepts the binding Czech version of these Terms and the Privacy Policy, subject to the mandatory consumer protection rules of their country of residence; the Operator is not liable for any inaccuracies arising from machine translation.
Restricted territories. The Service is operated from the European Union by Inner Battery s.r.o. (Czech Republic) and is not directed to, and not made available to, users located in:
(a) Sanctioned jurisdictions. Any jurisdiction subject to comprehensive sanctions of the European Union, the United Nations, the United States Office of Foreign Assets Control (OFAC), or the United Kingdom, including without limitation the Republic of Cuba, the Islamic Republic of Iran, the Democratic People's Republic of Korea, the Syrian Arab Republic, the Russian Federation, the Republic of Belarus, the Republic of the Union of Myanmar, and the occupied regions of Crimea, Donetsk, Luhansk, Zaporizhzhia, and Kherson of Ukraine.
(b) Jurisdictions with regulatory requirements disproportionate to the Operator's scale. Jurisdictions where the regulatory requirements (in particular local data-protection representative obligations, strict verifiable parental consent for minors, mandatory operator licensing for messaging services, content-moderation duties incompatible with the Operator's small-team capacity, or local-data-residency mandates) cannot be proportionately satisfied by a small enterprise pre-revenue. These include the People's Republic of China (mainland), the Republic of India, the Republic of Indonesia, the Republic of Turkey, the Kingdom of Saudi Arabia, the Federative Republic of Brazil, the Republic of South Africa, and the United Arab Emirates.
(c) Jurisdictions where the Operator's payment processor is restricted. Any jurisdiction subject to active armed conflict, comprehensive trade sanctions, or where Paddle.com Market Ltd. and its affiliates (the Operator's Merchant of Record) is restricted from accepting buyers, including Afghanistan, Central African Republic, Democratic Republic of the Congo, Haiti, Iraq, Libya, Mali, Nicaragua, Somalia, South Sudan, Sudan, Venezuela, Yemen, and Zimbabwe.
By accessing the Service, you represent and warrant that you are not located in, under the control of, or a national or resident of any jurisdiction listed in (a), (b), or (c) above. The Operator does not target these jurisdictions through marketing, localized pricing, domain registrations, or local payment methods. Any access from these jurisdictions is at the user's own initiative; the Operator reserves the right to refuse or terminate service to users in these jurisdictions without notice. This clause is for clarity of market scope and to comply with applicable sanctions and regulatory regimes; it does not waive any user's mandatory local-law rights.
Emergency services. The App does not provide voice calling or SMS, including calls to emergency services (e.g., 112, 911, 999, 116). In an emergency, contact your local emergency system directly via a mobile phone or other communications device.
U.S. users — general wellness framing. The Service is provided as a general wellness tool under the U.S. Food and Drug Administration's 2019 "General Wellness Policy for Low Risk Devices". It is not a medical device and does not diagnose, treat, cure, or prevent any disease. If you are in crisis, contact 988 (Suicide & Crisis Lifeline) or your local emergency services.
United Kingdom users — crisis support. If you are in distress, contact 116 123 (Samaritans, free, 24/7) or your local emergency services.
Czech users — crisis support. If you are in distress, contact 116 123 (First Psychological Help Line, free, 24/7) or the emergency line 112.
Age of users. The Service is intended for persons aged 16 years or older (or older where required by the user's local law). By using the Service, the user confirms that they meet this age requirement. The Operator does not knowingly collect personal data from users under 16. If the Operator becomes aware that a user under 16 has registered, the relevant account will be deleted. Parents or legal guardians who believe their child has used the Service may contact the Operator at hello@innerbattery.com.
The Operator may modify these Terms.
Material changes will be communicated via in-app notification. Continued use of the App after publication constitutes acceptance of the updated Terms.
The Operator shall not be liable for any failure or delay in performance of obligations under these Terms resulting from events of force majeure, including but not limited to: internet outages, cloud infrastructure provider outages (Google Cloud, Firebase), cyberattacks, war, terrorist acts, natural disasters, pandemics, government actions, strikes, and other events beyond the reasonable control of the Operator.
If any provision of these Terms is or becomes invalid or unenforceable, this shall not affect the validity and enforceability of the remaining provisions. The invalid or unenforceable provision shall be replaced by a provision that most closely matches the economic intent of the original provision.
These Terms (together with the Privacy Policy and Refund Policy) constitute the entire agreement between the User and the Operator regarding the use of the App and supersede all prior agreements, representations, or communications (written or oral) on the same subject matter.
The Operator's failure to enforce any right under these Terms in any given case shall not constitute a waiver of that right or of the right to enforce it in the future.
The User may not assign their rights and obligations under these Terms to any third party without the prior written consent of the Operator. The Operator may assign its rights and obligations under these Terms to a third party in connection with a sale, merger, or other corporate restructuring, with prior notice to the User.
Provisions of these Terms that by their nature should survive termination (in particular §9 Operator's Limitation of Liability, §10 Intellectual Property, §11 Privacy, §13 Governing Law, and this §15) shall remain in effect after termination of the contract.
Depending on the type of submission, please use the most suitable address — this will speed up our internal processing:
All addresses above are under our control and have equal legal validity. If you write to any of them, we will route the submission internally, and statutory deadlines run from delivery to any of these addresses. The recommended split serves only for faster internal processing — not as a condition.
Directly in the app:
For these cases, the in-app path is faster than email because it bypasses the email queue.
For withdrawal from contract (§1829 Czech Civil Code) we provide a self-service form at innerbattery.com/refund. Alternatively email refund@innerbattery.com — both channels have equal legal validity.
The Operator complies with the following statutory deadlines:
For general inquiries, suggestions, bug reports and other submissions outside the scope of §16.2, we respond as soon as practicable. We are a small team, so we do not commit to a specific response time beyond statutory obligations. Thank you for your understanding and patience.
For the purposes of Art. 11 and Art. 12 of the DSA (Regulation (EU) 2022/2065), the official contact channel is dsa@innerbattery.com. For the purposes of Art. 13 of the GDPR (Regulation (EU) 2016/679), the controller's official contact channel is gdpr@innerbattery.com.
If you are not satisfied with the resolution of your request, you may contact the relevant Czech supervisory authority:
You may also use the EU online platform for consumer dispute resolution (ODR platform) at ec.europa.eu/consumers/odr.
For international users: The Operator is established in the Czech Republic (an EU Member State). Regardless of your country of residence, the Czech supervisory authority (ÚOOÚ for personal data, ČOI for consumers) has jurisdiction over complaints against the Operator. You may also contact the supervisory authority in your own country, which will forward the complaint to the appropriate Czech authority or handle it in accordance with your national law (see Privacy Policy §12 for the list of regional authorities).