Terms of Service
Optic Gecko · Version 1.0 · Effective 3 August 2026
Supplied by Zack McSweeney, a sole trader of Forest Lake, Queensland, Australia ("we", "us", "our").
The short version, which does not replace the terms below. Optic Gecko is free and stores everything on your device. We never see your data, which also means we cannot recover it — export your own backups. It is a self-tracking tool, not medical advice. Nothing here takes away rights you have under the Australian Consumer Law.
1. Agreement to these terms
1.1 These Terms of Service ("Terms") govern your access to and use of the Optic Gecko mobile application, desktop application and web application, together with any updates to them (the "App").
1.2 By installing or using the App you agree to be bound by these Terms. If you do not agree to them, do not install or use the App, and uninstall it if already installed.
1.3 The App requires no account and no registration. Your agreement to these Terms is formed by your use of the App rather than by any sign-up step.
1.4 If you are under 13 years of age, you may not use the App.
2. Definitions
| Term | Meaning |
|---|---|
| Your Content | Any data you enter into, import into, or generate through the App, including tasks, notes, habits, goals, health entries, financial records, contacts and memories. |
| Your Device | Any phone, tablet or computer on which you install or run the App. |
| Third-Party Service | Any service not operated by us that the App can contact at your direction, as listed in clause 7. |
| ACL | The Australian Consumer Law, being Schedule 2 to the Competition and Consumer Act 2010 (Cth). |
3. Licence
3.1 We grant you a non-exclusive, non-transferable, revocable licence to install and use the App on Your Device for your personal, non-commercial purposes, on the terms set out in these Terms.
3.2 You must not, except to the extent permitted by law or by an applicable open-source licence referred to in clause 9: (a) sell, rent, sub-licence or otherwise commercially exploit the App; (b) reverse engineer, decompile or disassemble the App; (c) remove or obscure any proprietary or licence notice; or (d) use the App to break any law.
3.3 The App is supplied free of charge. We are under no obligation to provide updates, support, maintenance or continued availability, and may cease development at any time.
4. Your Content, and your responsibility for backups
This clause is the most important one in these Terms. Please read it.
4.1 You own Your Content. We claim no ownership of, and no licence over, Your Content. We do not receive it, store it, transmit it, analyse it, or use it for any purpose.
4.2 Your Content is stored only on Your Device. The App has no server, no user account and no cloud storage. There is no copy of Your Content anywhere other than on Your Device and in any backup you create yourself.
4.3 We cannot recover Your Content in any circumstance. Because we never hold it, we cannot restore it if it is lost. Your Content will be permanently lost if, among other things: Your Device is lost, stolen, damaged, reset or replaced; you uninstall the App; you clear the App's storage or your browser's site data; your operating system reclaims storage; or a fault in the App, your device or your operating system corrupts the stored data.
4.4 You are responsible for maintaining your own backups. The App provides an export function at Settings → Backup → Export, which writes a file you control. We strongly recommend you export regularly and keep the exported file somewhere separate from Your Device.
4.5 Device-level cloud backup is deliberately disabled for the App so that Your Content is not copied to a third-party cloud account without your knowledge. This is a privacy protection, and it means the export in clause 4.4 is your only recovery path.
4.6 You are responsible for Your Content, including its accuracy, legality, and your right to hold it. If you enter another person's personal information into the App, you are responsible for handling it lawfully.
5. Health and wellbeing information
5.1 The App includes features for recording sleep, mood, food, fitness, medication reminders and similar personal observations, and for importing data files you export from Apple Health, Samsung Health, Google Fit or Fitbit.
5.2 The App is a general wellness and self-tracking tool. It is not a medical device. It is not intended to diagnose, treat, cure, monitor or prevent any disease or medical condition, and it performs no clinical calculation or assessment.
5.3 Nothing displayed by the App, including any trend, chart, streak, pattern, insight or reminder, is medical, clinical, nutritional, psychological or health advice, and none of it should be relied on as such.
5.4 Always seek the advice of a qualified health practitioner about any medical condition or treatment. Never disregard professional medical advice, or delay seeking it, because of something you saw in the App. If you believe you may have a medical emergency, contact emergency services immediately (000 in Australia).
5.5 Medication or habit reminders are a convenience only. Notification delivery depends on your operating system and device settings and may be delayed, suppressed or not delivered at all. Do not rely on the App as your sole reminder for medication or any other health-critical activity.
6. Financial information
6.1 The App includes features for recording income, expenses and assets. These are a personal record-keeping tool only.
6.2 Nothing in the App is financial, taxation, accounting or investment advice. The App does not connect to any bank or financial institution. Figures it displays are derived solely from what you enter, and you should not rely on them for taxation or other regulatory purposes without independent verification.
7. Third-Party Services
7.1 The App makes no network request unless you enable and use one of the optional features listed below. Each is off by default.
| Feature | Contacts |
|---|---|
| Book search | openlibrary.org, gutendex.com, covers.openlibrary.org |
| Place search | nominatim.openstreetmap.org |
| GitHub hub | api.github.com |
| Telegram reminders | A Cloudflare Worker that you deploy and control |
| Reading shortcuts | Links you may tap that open Audible, Amazon, Libby or Project Gutenberg |
7.2 Third-Party Services are not operated or controlled by us. Your use of them is governed by their own terms and privacy policies. We are not responsible for their content, availability, accuracy, security or acts.
7.3 If you configure the Telegram bridge, you are the operator of the Cloudflare Worker it contacts. You are responsible for deploying it, for securing its secret, and for complying with Cloudflare's and Telegram's terms.
7.4 If you supply a GitHub personal access token, you are responsible for its scope and safekeeping. It is stored on Your Device and transmitted only to api.github.com.
8. Acceptable use
8.1 You must not use the App to store or transmit anything unlawful, or in a way that infringes another person's rights, interferes with the App's operation, or attempts to gain unauthorised access to any system.
9. Intellectual property and open-source components
9.1 The App, its source code, design, name and logo are owned by us or our licensors and are protected by copyright and other laws. Except for the licence in clause 3, no rights are granted to you.
9.2 The App includes third-party open-source components, which remain subject to their own licences. Those licences prevail over these Terms to the extent of any inconsistency. This includes ical.js, licensed under the Mozilla Public License 2.0, whose Source Code Form is available at github.com/kewisch/ical.js, and the Capacitor runtime and its plugins, licensed under the MIT Licence.
10. Australian Consumer Law
10.1 Nothing in these Terms excludes, restricts or modifies any guarantee, right or remedy you have under the ACL or any other law that cannot lawfully be excluded, restricted or modified (a "Non-Excludable Right").
10.2 If the ACL applies to our supply of the App to you, you may be entitled to remedies that these Terms cannot take away. Clause 11 applies only to the extent it does not limit a Non-Excludable Right.
10.3 We do not seek to rely on section 64A of the ACL to limit our liability for a failure to comply with a consumer guarantee, because the App is of a kind ordinarily acquired for personal, domestic or household use.
11. Disclaimers and limitation of liability
11.1 Subject always to clause 10, and to the maximum extent permitted by law:
- (a) the App is provided "as is" and "as available", without warranty of any kind, express or implied, including as to merchantability, fitness for a particular purpose, accuracy, or non-infringement;
- (b) we do not warrant that the App will be uninterrupted, error-free, secure, compatible with any particular device, or that defects will be corrected;
- (c) we are not liable for any loss of, or corruption of, Your Content, however caused, including where caused by our negligence;
- (d) we are not liable for any indirect, incidental, special, consequential or punitive loss, or for any loss of profit, revenue, goodwill, opportunity or anticipated savings; and
- (e) our total aggregate liability arising out of or in connection with the App and these Terms is limited to one hundred Australian dollars (AUD $100).
11.2 The limit in clause 11.1(e) reflects that the App is supplied free of charge and that we receive no payment or data from you.
11.3 You acknowledge that clauses 4, 5 and 11 allocate risk between us, and that we would not supply the App free of charge without them.
12. Indemnity
12.1 To the maximum extent permitted by law, and except to the extent caused by our own breach or negligence, you indemnify us against any claim, loss or expense arising from your unlawful use of the App or your breach of clause 8.
13. Changes to these Terms
13.1 We may amend these Terms from time to time. The current version will always be published at webgecko.au/optic-gecko/terms, with the version number and effective date at the top.
13.2 Where a change materially reduces your rights, we will make reasonable efforts to signal it in the App. Your continued use after a change takes effect constitutes acceptance of the amended Terms. If you do not accept them, uninstall the App.
14. Termination
14.1 You may terminate these Terms at any time by uninstalling the App. Uninstalling will delete Your Content held on that device.
14.2 Clauses 4, 5, 9, 10, 11, 12 and 15 survive termination.
15. General
15.1 Governing law. These Terms are governed by the laws of Queensland, Australia. You and we submit to the non-exclusive jurisdiction of the courts of Queensland and the courts competent to hear appeals from them.
15.2 Severability. If a provision of these Terms is unenforceable, it is to be read down to the minimum extent necessary, or severed if it cannot be read down, and the remaining provisions continue in force.
15.3 No waiver. A failure or delay by us in exercising a right does not operate as a waiver of it.
15.4 Entire agreement. These Terms, together with the Privacy Policy, constitute the entire agreement between you and us in relation to the App.
15.5 Assignment. You may not assign your rights under these Terms. We may assign ours on notice published at the address in clause 13.1.
16. Contact
Zack McSweeney, Forest Lake, Queensland, Australia
zackrmcsweeney@gmail.com