Terms of use

Effective date: November 11, 2026

The short version

Your journal, goals and everything you add stay yours. We only store and sync them to run the app for you.
Tiny Engine is a self-reflection tool, not medical care, therapy or a crisis service. In an emergency call 911, or call or text 988 in the US.
Plus is a subscription that renews automatically until you cancel. You can cancel any time; it then runs to the end of the period you paid for.
The app is provided as it is, and our liability is limited. Keep your own backups (Settings › Backup).
Disputes go to individual arbitration, not class actions, unless you opt out within 30 days (see section 15).

1. Who we are and accepting these terms

Tiny Engine is provided by Cam Mitchels, an individual doing business as Tiny Engine ("we", "us"). These terms are an agreement between you and us. By creating an account, buying Plus or otherwise using Tiny Engine, you agree to them and to our Privacy policy and Consumer Health Data Privacy Policy. If you do not agree, do not use the app.

2. Who can use Tiny Engine

You must be at least 18 years old and able to form a binding contract. You may not use Tiny Engine if you are barred from doing so under applicable law, including the export and sanctions laws in section 19.

3. Your account

Give a real email address you control, and keep your password private and unique to Tiny Engine.
You are responsible for activity in your account. Tell us at once at [email protected] if you think someone else has used it.
You can use the app without an account; then your data lives only on your device, and you are responsible for backing it up.
You can delete your account at any time in Settings › Sync across devices.

4. The free plan and Plus

Tiny Engine has a free plan and a paid plan, Tiny Engine Plus. We may change what each plan includes. Backup, sync, export and account deletion will always be free. If we reduce what the free plan includes, your existing data stays yours and exportable.

5. Subscriptions, renewal and cancellation

Price. Plus is offered monthly or yearly (at launch, US$6 per month or US$48 per year). The price, billing period and any taxes are shown at checkout before you pay, and that is the price you agree to.
Automatic renewal. Your subscription renews automatically at the end of each billing period (monthly or yearly), and we charge your payment method the then-current price for the next period, until you cancel. By subscribing you authorise these recurring charges.
How to cancel. You can cancel any time, online, in Settings through "Manage subscription" (Stripe's secure customer portal), or by emailing [email protected]. Cancel at least 24 hours before the renewal date to avoid the next charge.
When cancellation takes effect. Cancellation stops future renewals. You keep Plus until the end of the period you already paid for; then your account moves to the free plan. Your data is not deleted.
Refunds. Payments are non-refundable, and we do not give refunds or credits for partial periods or unused time, except where required by law or where we choose to in a specific case. If you live in the EU, UK or another place that gives you a legal right to withdraw from an online purchase, you keep that right as the law provides.
Reminders and price changes. We will email you before a yearly plan renews. We may change prices; we will tell you at least 30 days before a new price applies to you, and it applies from your next renewal. If you don't want to pay it, cancel before then.
Taxes. Prices may not include sales tax, VAT or similar taxes, which are added where required and shown at checkout.
Payments. Payments are processed by Stripe. You agree to keep your payment details current. If a payment fails, we may retry it and, if it still fails, move your account to the free plan.
Free trials or offers, if any, will state their terms at sign-up, including when paid billing starts and how to cancel before it does.

6. Your content

You own what you write and add to Tiny Engine ("your content"). To run the app for you, you give us a limited, worldwide, non-exclusive, royalty-free licence to host, store, copy, transmit, process and display your content only as needed to provide, secure and support the service (for example syncing it to your devices, making reminders and the Brain view, and making backups). This licence ends when your content is deleted from our systems, except for copies in backups until they expire. We do not use your content for advertising or to train AI models, and we do not claim ownership of it.

You are responsible for your content and promise you have the right to store it. Keep your own backups: Settings › Backup downloads everything.

7. Acceptable use

Do not use Tiny Engine to:

break any law, or store content that infringes someone else's rights or that you have no right to hold;
store or share child sexual abuse material, or content that threatens or harasses others;
attack, probe, overload, scrape or get around the security or limits of the service, or access other people's data;
copy, resell, reverse engineer or build a competing service from the app, except where the law allows;
upload malware, or use automated means to create accounts.

We may remove content or suspend accounts that break these rules, and we may report illegal content to the authorities.

8. Not medical advice, therapy or a crisis service

Tiny Engine is a self-reflection and habit tool. It is not medical care, psychotherapy, counselling or a crisis service, and it does not diagnose, treat or prevent any condition. Insights, patterns, suggestions, questions and reminders are general information drawn from your own entries; they may be wrong and are not professional advice. Talk to a qualified professional about your health.

If you are in danger or thinking about harming yourself, call your local emergency number now. In the US, call 911, or call or text 988 (Suicide & Crisis Lifeline). We do not monitor your entries and cannot respond to emergencies.

9. Changes to the app

We keep improving Tiny Engine, so features may be added, changed or removed. If we stop offering the service, we will give you reasonable notice and time to export your data, and refund any prepaid Plus time you can no longer use.

10. Disclaimers

TO THE FULLEST EXTENT ALLOWED BY LAW, TINY ENGINE IS PROVIDED "AS IS" AND "AS AVAILABLE", WITHOUT WARRANTIES OF ANY KIND, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. WE DO NOT PROMISE THAT THE APP WILL BE UNINTERRUPTED, ERROR-FREE OR SECURE, THAT DATA WILL NEVER BE LOST, OR THAT INSIGHTS ARE ACCURATE. Some places do not allow these exclusions, so some may not apply to you.

11. Limitation of liability

TO THE FULLEST EXTENT ALLOWED BY LAW: (A) WE ARE NOT LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY OR PUNITIVE DAMAGES, OR FOR LOST PROFITS, REVENUE, DATA OR GOODWILL, EVEN IF WE WERE TOLD THEY WERE POSSIBLE; AND (B) OUR TOTAL LIABILITY FOR ALL CLAIMS RELATING TO TINY ENGINE IS LIMITED TO THE GREATER OF THE AMOUNT YOU PAID US IN THE 12 MONTHS BEFORE THE EVENT GIVING RISE TO THE CLAIM, OR US$50.

Nothing in these terms limits liability that cannot be limited by law, such as for fraud, gross negligence, wilful misconduct, or death or personal injury caused by negligence, or your rights as a consumer that cannot be waived.

12. Indemnity

To the extent allowed by law, you agree to defend and compensate us for claims, losses and reasonable costs (including legal fees) brought by third parties that arise from your content, your misuse of Tiny Engine, or your breach of these terms or the law. This does not apply to the extent a claim is caused by our own fault.

13. Ending these terms

You can stop using Tiny Engine and delete your account at any time. We may suspend or end your access if you seriously or repeatedly break these terms, if the law requires it, or to protect the service or other people; where reasonable we will tell you first and give you a chance to export your data. Sections 6 (the licence ends as stated), 8, 10, 11, 12, 14, 15, 16 and 20 survive termination.

14. Governing law

These terms are governed by the laws of the State of Washington, USA, and applicable US federal law (including the Federal Arbitration Act), without regard to conflict-of-law rules. If you live in the EU, UK or another country whose consumer laws give you more protection, those protections still apply. Subject to section 15, any claim that is not arbitrated will be brought only in the state or federal courts located in King County, Washington, and you and we consent to their jurisdiction, except where your local law gives you the right to sue where you live.

15. Dispute resolution: binding individual arbitration

Please read this carefully. It affects your rights.

Talk to us first. Before starting a claim, email [email protected] with your name, account email, a description of the problem and what you want. We both agree to try in good faith to settle it within 60 days.
Arbitration. If we can't, you and we agree that any dispute arising from or relating to these terms or Tiny Engine will be resolved by binding individual arbitration administered by the American Arbitration Association (AAA) under its Consumer Arbitration Rules, before one arbitrator. The arbitration may be held by video or phone, or in the county where you live. We will pay the AAA filing, administration and arbitrator fees beyond what you would pay to file in court, unless the arbitrator finds your claim frivolous. The arbitrator may award the same individual relief a court could, and decides questions about the scope and enforceability of this section, except for the class-action waiver, which a court decides.
Class-action waiver. You and we may bring claims only in an individual capacity, not as a plaintiff or class member in any class, collective, consolidated or representative proceeding, and the arbitrator may not combine claims of more than one person. If this waiver is found unenforceable for a claim, that claim will go to court, not arbitration.
Exceptions. Either of us may bring an individual claim in small-claims court if it qualifies, and either of us may ask a court to stop infringement or misuse of intellectual property or unauthorised access to the service.
30-day opt-out. You can opt out of this arbitration agreement by emailing [email protected] within 30 days of first accepting these terms, with the subject "Arbitration opt-out", your name and your account email. Opting out does not affect the rest of these terms.
Changes. If we change this section later, the change does not apply to a dispute we already knew about, and you can reject it by emailing us within 30 days of the change.

16. Copyright complaints (DMCA)

Content in Tiny Engine is private to each account, but if you believe something stored with us infringes your copyright, send a notice to our designated agent at [email protected] (subject "DMCA") with: your physical or electronic signature; the work you say is infringed; where the material is; your contact details; a statement that you believe in good faith the use is not authorised; and a statement, under penalty of perjury, that your notice is accurate and you are the owner or authorised to act for the owner. We may remove the material and, in appropriate cases, end the accounts of repeat infringers. If your content was removed and you believe it was a mistake, you may send a counter-notice as the DMCA allows.

17. Changes to these terms

We may update these terms. We will change the effective date above, and for significant changes we will tell you in the app or by email at least 30 days before they take effect. If you keep using Tiny Engine after a change takes effect, you accept the new terms; if you don't agree, stop using the app and cancel any subscription before then.

18. Assignment

We may transfer these terms, and your account, to a company we control or form to run Tiny Engine (for example a limited liability company), or to a successor in a merger, sale or reorganisation, without your consent, as long as your rights under these terms and our privacy policies continue. You may not transfer your account or these terms without our written consent.

19. Export controls and sanctions

You may not use or access Tiny Engine if you are located in, or ordinarily resident in, a country or region subject to comprehensive US sanctions, or if you are on a US government list of prohibited or restricted parties. You agree to follow all applicable export control and sanctions laws.

20. General

Entire agreement. These terms, with the Privacy policy and Consumer Health Data Privacy Policy, are the whole agreement between you and us about Tiny Engine.
Severability. If any part is found unenforceable, it will be enforced as far as possible and the rest stays in effect.
No waiver. If we don't enforce a right right away, we have not given it up.
No third-party rights. Nobody else may enforce these terms.
Notices. We may send you notices by email to your account address or in the app. You can send notices, including legal notices, to [email protected].
Events beyond our control. We are not responsible for delays or failures caused by events outside our reasonable control.
Apple and Google. If you install Tiny Engine from an app store in future, that store's required terms will also apply.

21. Contact

Cam Mitchels, doing business as Tiny Engine. Email: [email protected]