Revisync Terms of Service

1. Provider and scope

The Revisync app and this website are operated by Galcore Studios, the commercial software-development name of the Brazilian registered supplier GABRIEL LOPES COSTA. The supplier's registration, business address and contact details are disclosed prominently below. These Terms of Service govern use of the Android app, the Revisync website and their associated materials.

The website is informational: it does not sell licenses or process payments directly. A purchase of digital features is also subject to the terms shown by Google Play at checkout, without displacing these Terms or mandatory consumer protections.

2. Reading these Terms and related documents

You must have an opportunity to review these Terms and the purchase information before buying Premium. By installing or using the app after being informed of these Terms, you are subject to the applicable provisions, subject to any statutory notice or consent requirements. Nothing here assumes a waiver of mandatory rights.

The Privacy Policy explains personal-data handling and local storage; the Security page describes technical safeguards; and the Premium page compares features. Applicable law and legally binding product-specific offers take precedence in the event of a conflict.

3. Purpose and capabilities

Revisync helps you organise subjects and study topics, spaced reviews, cycles, calendars and progress. Features available in the applicable edition may include a study timer, statistics, notifications, Android widgets, backups, imports and exports. Availability differs between the Free demonstration and Premium and can depend on app version.

Revisync is a personal planning tool, not a school, tutoring service or accreditation provider. It does not guarantee learning, examination results, retention, grades, qualifications or academic performance. You remain responsible for study decisions.

4. Technical requirements and minors

The Android app requires a compatible device and operating system as stated on Google Play. Android permissions, power management, connectivity and Google services can affect purchases, scheduled backups, reminders and widgets. A future release on another platform is not included in, or guaranteed by, an Android purchase.

Minors should use the product under the guidance of a parent or legal guardian where required by applicable law, especially for purchases, contacting support or choosing external file storage.

5. Permanent Free demonstration and limitations

Free is a permanent but extremely restricted demonstration intended to let you explore the interface and basic review process. It currently allows one subject and at most three study contents in total, with basic standard reviews. It is not represented as equivalent to the full planner.

Groups, long-term review, complete statistics based on real usage, backups, CSV/ZIP import and export, notifications and fully functioning widgets require Premium. Sample statistics or static widget previews do not represent a fully active feature or your real data. Free has no trial expiry but retains its functional limits.

6. Premium purchase and license

Premium unlocks the full functions described in the app and the relevant feature comparison at the time of purchase. Premium is a one-time digital purchase, not a subscription; there is no monthly fee, automatic renewal or recurring license charge.

The purchase gives access under the eligible Google Play account and technical conditions without transferring ownership of the software. A one-time purchase is not a promise of perpetual support, every future device's compatibility, unlimited updates or access on other platforms. Material changes or discontinuation remain subject to the agreed offer and mandatory consumer remedies.

7. Price, currency, tax and payment

Premium prices are regional and may depend on country, currency, taxes, Google Play account region and applicable store rules. Google Play displays the final price, taxes and payment conditions before checkout. The Revisync website does not collect Premium payments.

Payment instruments, authorisation, receipts and applicable tax handling follow the store process and the law. A later price change does not create a new charge on a completed one-time purchase.

8. Activation and purchase recovery

Premium activation may require Google Play purchase confirmation and license-status checks. Recovery on another compatible Android device depends on an eligible Google Play account, store policies and the availability of the recovery process. We do not offer a Revisync account or independent licensing server for transferring Play purchases.

Restoring Premium access does not restore subjects, review history or other study records. Study data is stored locally and, when supported, requires a separate app backup for recovery or transfer.

9. Withdrawal, cancellation and refunds

You may initiate refund requests using Google Play's tools or contact our support for assistance. Store processes do not remove rights granted by mandatory local law. In Brazil, where applicable, distance purchases may be subject to the seven-day right of withdrawal under article 49 of the Consumer Defense Code, along with statutory remedies for defective products or misleading offers.

Consumers in the European Union and other jurisdictions retain applicable withdrawal periods, mandatory information and statutory exceptions. Any loss of a withdrawal right after digital delivery begins only occurs if the applicable legal requirements—including express prior consent and the required acknowledgement—have actually been met. These Terms alone do not constitute that consent or waiver.

A purchase refunded or lawfully revoked may lose the corresponding Premium entitlement. If a store request cannot resolve your concern, email [email protected] with enough transaction details to help identify the purchase, but never send a password or full payment-card details.

10. License and intellectual property

We grant a personal, limited, non-exclusive, non-transferable license to use the app under your available edition and applicable law. The source code, Revisync name, branding, documentation, original text and interface assets remain protected by their respective owners, except where separately licensed.

You retain rights to your subject names, notes and other information entered in the app. Local use does not grant Galcore Studios a commercial exploitation license over those records. Unauthorised distribution, resale, software tampering to evade licensing or infringement of others' rights is prohibited, except to the extent allowed by law.

11. Acceptable use

You may use Revisync to plan and manage your studies in a lawful manner. You may not distribute malware, attack systems, infringe third-party copyrights, counterfeit purchases, bypass Premium licensing or use the service for unlawful acts.

Only import or reuse third-party content where you have permission or another lawful basis. The ability to import a file does not itself grant rights to reproduce or redistribute protected works.

12. Local data, privacy and security

Study records are kept in the Android app's private storage, using an encrypted local database. No Revisync account is required; there is no study-sync server, and your subjects and reviews are not sent automatically to Galcore Studios. Visiting the website does not transmit your study database.

The Android study database uses SQLCipher and the private storage provided by Android. In the current app, the database encryption key is managed within the application and is not unique to each user or protected by a user password or dedicated hardware key. Encryption protects against some casual access but is not absolute protection against a compromised device, malware or reverse engineering. This implementation should not be described as end-to-end encryption.

Information voluntarily sent to support and technical information handled by website infrastructure, Google Play or other providers are governed by applicable privacy rules and the Revisync Privacy Policy. Any statutory rights to access, rectify or delete personal data remain unaffected.

13. Backups, restoration and loss of data

When backups are offered through Premium, you choose storage destinations and should maintain up-to-date independent copies. Manual export creates a file at your chosen destination; optional scheduled backup may update the configured file, but is not continuous sync, does not create a separate file on every run and cannot guarantee execution at the exact scheduled time. Android restrictions, battery settings, permissions and storage availability may interfere.

Before changing devices, uninstalling, clearing app storage or restoring files, we recommend creating and checking an independent backup. Restoring a valid backup may replace local records after confirmation. CSV files do not necessarily replace a full backup. External storage is governed by the provider's terms.

Full Revisync backups export a copy of the encrypted database in a proprietary file wrapper. The wrapper includes obfuscation for format recognition, not a second independent layer of strong encryption; it is not equivalent to a password-encrypted archive. CSV exports are ordinary readable text and are not encrypted by Revisync. Protect exported files and any cloud destination you choose. A full backup can only be restored by a compatible version of Revisync; CSV does not restore the complete study history or all settings.

Because we do not host a study database, we cannot remotely recover records lost or erased from a device. This product limitation does not waive any legal responsibility of Galcore Studios for proven defects or other non-excludable obligations.

14. Reminders, calendar, timer and Android integration

Review dates, reminders and timer indicators depend on your settings and the device. Notifications can be delayed or blocked by permissions, power saving, time-zone changes, restarts and platform restrictions; do not rely on them as your sole method for critical deadlines.

Widgets, notifications and lock-screen previews may show subject names and content titles depending on your preferences. Check app and Android privacy settings when others may see your device.

15. Website, editorial information and external providers

The Revisync website offers product information, articles, documentation, support resources and links. Educational articles provide general information and may need to be adapted to individual circumstances. Where the site provides prompts or guidance for third-party AI tools, Galcore Studios does not thereby operate those AI services or guarantee their output.

Google Play handles distribution and billing, website hosts provide infrastructure, and exports may be stored with providers you select. Such third parties have separate policies and availability. This allocation of roles does not remove any legal responsibilities we may have.

16. Updates, support and continuity

We may fix defects, improve security, update compatibility and evolve features. Significant changes to purchased Premium features must be communicated appropriately and cannot arbitrarily remove vested rights, binding offers or statutory guarantees.

We do not promise uninterrupted access to third-party services or support for every future Android or iOS release. If a change or discontinuation materially prevents delivery of what was purchased, applicable consumer remedies remain available. Support is provided through the official email address without a promise of instantaneous response.

If Galcore Studios stops operating or stops maintaining Revisync, the Android app already installed on your device may remain usable locally while it remains compatible with the operating system and its dependencies. There is no Revisync study-account server that must remain online to read your existing local records. However, continued Premium verification or restoration may depend on Google Play, and future downloads, updates, fixes, technical support and compatibility are not guaranteed. Access to Premium backup/export functionality may also depend on a valid entitlement.

Before uninstalling, changing devices, resetting Android or relying on Revisync for long-term storage, make and verify an independent full backup while Premium access is available, and consider exporting CSV for limited human-readable portability. A backup is not permanent access to a future app: restoration requires compatible software. In the event of discontinuation, any legal obligations owed to purchasers and mandatory consumer remedies still apply; these Terms do not waive them.

17. Statutory warranties and limits of liability

The app is supplied with the stated capabilities and any warranties required by law. We do not guarantee personal learning outcomes, the complete absence of technical defects or flawless execution of features that depend on the operating system.

Nothing in these Terms excludes or restricts non-waivable consumer rights, liability that cannot lawfully be excluded, remedies for defective digital products, data-protection obligations or damages legally due. Any limitation only applies to the extent permitted by law in the consumer's jurisdiction.

18. Suspension, termination and data effects

We may take proportionate action against fraud, serious violations of these Terms or legal requirements, subject to applicable safeguards and review rights. Uninstalling the app ends local use but does not automatically reverse a completed purchase or erase exported files.

Loss of Premium access following a valid refund, proven fraud or lawful licensing restriction will follow applicable law and store rules. If the purchased product is not delivered as advertised, statutory remedies remain available.

19. Changes to these Terms

We may revise these Terms to reflect product, legal or commercial changes. The current version and effective date will appear on this page. Material changes affecting rights or obligations will receive legally required notice and will not retroactively eliminate rights attached to earlier purchases.

If a provision is unenforceable, other provisions remain effective to the extent permitted. Changes requiring specific consent under applicable law are not accepted merely by assumption.

20. Governing law, disputes and international consumer rights

Galcore Studios operates from Brazil. Brazilian law governs where it does not conflict with mandatory consumer protections in your country. Brazilian consumers retain their Consumer Defense Code rights and access to competent courts and consumer bodies; consumers elsewhere retain any mandatory local protections and jurisdictional rights.

You may seek help from [email protected] or Google Play's support channels before starting a formal dispute. This is optional and does not limit access to regulators, consumer protection agencies or courts.

Contact and related policies

Questions about these Terms, purchases or legal rights: [email protected].

Privacy Policy · Security · Free vs Premium · Google Play · Galcore Studios

Revisync Terms of Service