These terms are an agreement between you and Middletech Limited, a company registered in England and Wales (company number 16955822) with its registered office at 55 Colmore Row, Birmingham, England, B3 2AA ("Middletech", "we", "us") for the ternii mobile application (the "app") and the ternii.com website (the "site"). By installing or using the app or the site you accept these terms. If you do not accept them, please do not use ternii. Our privacy notice explains what the app does with information and forms part of these terms.
You must be at least 13 years old. If you are under 18, you confirm that a parent or guardian has agreed to these terms on your behalf. You must be legally able to enter into this agreement in your country.
We grant you a free, personal, non-exclusive, non-transferable, revocable licence to install and use ternii on devices you own or control, for your own personal or internal business use, in accordance with these terms and the rules of the app store you obtained it from. You may not sell, rent, sublicense or redistribute the app; modify or make derivative works of it; or reverse-engineer, decompile or disassemble it, except to the extent that applicable law expressly allows despite this restriction. Open-source components included in the app remain under their own licences (section 9).
You agree not to use ternii to create, obtain or facilitate anything that is unlawful, harmful, abusive, deceptive or exploitative; that harasses or threatens anyone; that promotes violence, self-harm or terrorism; that sexualises or endangers children; that infringes anyone's rights; or to generate malware or attack any system. You agree not to attempt to circumvent the app's safety features, to interfere with our content host or the third-party services the app can reach, or to use the app in a way that breaks the terms of those services. The app's safety filters may refuse requests; this is deliberate.
Everything you create or add in ternii — conversations, notes, files, settings — stays on your device. We do not receive it and claim no rights in it. You are responsible for it, including for having the right to use any content you attach. If you send us feedback, suggestions or an expert-pack request, you grant us a perpetual, royalty-free licence to use it to improve ternii, without any obligation to you.
ternii downloads AI models and expert packs to your device from our content host, only when you choose to. Downloads can be large (up to about a gigabyte) — we recommend Wi-Fi — and use your device's storage. Every download is verified against a checksum before it is used. The "ternii Brain" model is Middletech's own work and is licensed to you for use within the app only. Optional open models are provided under their own open-source licences, which are identified in the app (for example Microsoft's BitNet b1.58, MIT licence). We may add, change, replace or withdraw models, packs, tools and features at any time.
Founding Membership is an optional, one-off paid membership offered on ternii.com to people who want to help pay for training the next ternii Brain. This section applies if you buy one; the rest of these terms apply as well. The person paying and agreeing to these terms must be at least 18. The name or message you put on the Founding Roll may be your own or someone else's — a child's, for example, as a gift — but if it is not yours, you are responsible for having the right to submit it, which means the consent of the person named or, for a child, of their parent or guardian.
Founding Membership is a paid membership with the benefits listed below. It is not a share, a loan, an investment or a donation. It carries no ownership, no voting rights, no financial return and no say in how Middletech is run.
Fees are revenue of Middletech Limited. We intend to spend them on training compute and we publish what we trained, but we do not promise a particular model, release date or result.
If we ever open a funding round, we will tell Founding Members about it first. This is not an offer, an invitation to invest, a right to participate, or a promise of any allocation, discount or priority; any such round would be subject to eligibility and to the law.
Every name and message is reviewed by us before it is published on the roll, included in training data or issued a certificate. We decline anything sexual, violent, abusive or hateful; profanity; other people's personal data (a phone number, an address, someone else's private details); impersonation of a person or organisation; advertising; and anything unlawful. Our decision is final. If we decline your name or message we will ask you to change it. If you would rather not, we refund you in full — whatever stage your membership has reached, including after your certificate has been issued — and the membership ends. That is our decision, not your change of mind, so nothing in "Cancelling and refunds" below limits it.
What it records. Once your name or message has been approved, we issue a certificate for your roll entry. It records your certificate number (in the form TRN-000123), your roll number, a fingerprint (cryptographic hash) of your entry, the version and fingerprint of the roll it belongs to, the name and fingerprint of the ternii model release that roll is bound to, whether your entry was included in training, and the review status of your entry. The model file records the roll's fingerprint in return.
Signed and anchored. Each certificate is signed by Middletech Limited with a key whose public half we publish at ternii.com/founders/verify. For each version of the roll we also anchor a fingerprint of that roll version publicly, so that it can be shown afterwards that the roll existed in that form at that time. What is anchored is a fingerprint of the roll, not your name: the anchor contains no personal data.
Verifiable by anyone. Anyone with your certificate number can check the certificate at ternii.com/founders/verify against our published key, against the roll, and against the model file itself. We keep the key and the registry published for as long as certificates exist, and section "If we change or end the programme" below says what happens if we stop.
What the certificate is not. It is a certificate of membership, nothing more. It is not a currency, a security, a share, an investment or a store of value. It has no price; we do not sell or trade it, and we make no statement about any resale or market value, and there may be none. Nothing in these terms, on the site or on the members' site is financial advice. The certificate is provided as is, and sections 11 and 12 apply to it.
Corrections and withdrawal. If you change your name or message, a corrected certificate is issued with the next roll version and the earlier one is marked superseded in the registry. If you withdraw your entry, it is removed from the next roll version and your certificate is marked withdrawn in the registry. The anchored fingerprints of earlier roll versions cannot change — that is what makes them worth anchoring — but they contain no name, and a certificate marked withdrawn no longer verifies as current.
Only if you ask for a token. On request, and only if you ask, we can additionally issue your entry as a non-fungible token to a wallet you control. If you do, the on-chain record is permanent and outside our control: it cannot be altered or deleted by us or by anyone, even if you later withdraw your entry, and the roll number and name or message written to it stay publicly readable for good — we will tell you that again before we mint. Once a token has been sent to your wallet we cannot recover it, so please check the address you give us. Network costs current at the time of your request may be charged to you, and we will tell you the amount first. Our privacy notice, section 6a, says more about this.
Payment is a single charge taken by our payment provider, Stripe, on Stripe's own payment page. We never see or store your card number. Your membership starts when Stripe confirms the payment; we then send your Founding Roll number to the email address you gave. Roll numbers are given out in order of payment and are never reused, including after a refund. Prices are in pounds sterling and include UK VAT where it applies; local taxes may be added where the law requires; your bank may convert the amount and charge for it (see "Price and taxes" above). Any extra amount you add on top of a tier buys nothing further — it goes to the same training spend — and is refundable on the same terms as the tier price (see "Cancelling and refunds" below).
You have a 14-day right to cancel. Because this is a service bought at a distance, the law gives you 14 days from the day you buy to change your mind. Nothing here takes that right away from you; what follows explains the one thing that ends it, and it only ends because you ask us to do the work.
What you ask for at checkout. Before you pay, you tick a box asking us to start now — to put your entry into review straight away and issue your certificate as soon as it is approved — and confirming that you understand that once your entry has been reviewed and your certificate issued you lose the 14-day right to cancel. The box is not ticked for you and the payment will not go through without it. If you would rather keep the full 14 days and wait, do not tick it: email us instead and we will hold your entry until the 14 days have passed, then review it. We confirm what you asked for, in writing, in your welcome email.
Cancelling before your entry is supplied. Until both of those things have happened — your entry reviewed and your certificate issued — you can cancel for a full refund, no questions asked. Email [email protected] from the address you paid with, saying you want to cancel; you may use the form below but do not have to. We refund the full amount by the method you paid with, within 14 days of receiving your request. A refund ends the membership: your access to the members' site and to pre-release builds stops, your entry is removed from the next published version of the roll, and any certificate is marked withdrawn.
After your entry has been supplied. Once your entry has been reviewed and your certificate issued, the service you bought has been fully performed at your express request, and the fee is not refundable. That is what the box at checkout said, and it is why your certificate can be issued in days rather than held back for a fortnight. By then the money has gone where we said it would: into training compute.
Two refunds you always get, whatever stage you are at. First, if we decline your name or message and you would rather not send us a different one, we refund you in full — see "Content rules" above; that is our decision, not your change of mind. Second, if you were charged twice, or charged by accident, we refund it in full. In both cases just reply to any email from us.
We may also refund at our own discretion as a goodwill decision. Nothing in this section affects your legal rights if something we supplied was not as described.
Model cancellation form (complete and return this only if you wish to cancel the contract):
To: Middletech Limited, 55 Colmore Row, Birmingham, England, B3 2AA — [email protected]
I hereby give notice that I cancel my contract for the supply of a ternii Founding Membership.
Ordered on: ______ Founding Roll number (if known): ______
Name: ______
Address: ______
Email address used to pay: ______
Signature (only if this form is sent on paper): ______ Date: ______
You can change or remove your display name or message, and withdraw either of the two opt-ins, at any time by emailing us. Removal takes effect from the next published version of the roll and from the training data of any model trained after we receive your request. It cannot be applied to model files we have already shipped — the roll's fingerprint, and any training already done, are part of those files and we cannot recall them — and the anchored fingerprints of earlier roll versions cannot change, though they contain no name. A change or withdrawal is reflected in the certificate registry as described in "Your certificate" above (a corrected certificate, or one marked withdrawn); a token you asked for is the one thing we cannot recall, as that paragraph explains. Section 6a of our privacy notice explains how we handle this data and your rights over it.
The members' site is a shared space, and section 4 (acceptable use) applies there too. Be civil. Do not harass, threaten, abuse or discriminate against anyone. Do not share pre-release builds, model files, download links or members-only posts outside the membership. Do not post anything you do not have the right to post. If you break these rules we may remove the content, suspend your login or end your membership. If we end a membership for abuse we do not refund the fee: there is no pro-rata refund, and nothing is owed beyond the cancellation right above if it still applies. Your entry may also be removed from the published roll and from future training data, and your certificate marked withdrawn in the registry.
We may change the members' site, its provider, the certificate registry, how roll versions are anchored, or how pre-release builds are delivered. If we stop running the members' site or the programme altogether, we will tell you in advance where practical and keep the benefits we still can — your place on the Founding Roll, any fingerprint already written into model files, and any certificate already issued remain, and we will keep the registry and its public key published, or publish them in a form that lets certificates still be verified. Ending the programme for reasons of our own does not entitle you to a refund once your entry has been reviewed and your certificate issued, unless the law says otherwise.
For Founding Membership, the £100 limit in section 12 is replaced by the amount you paid for the membership or £100, whichever is higher. Nothing in this section limits the liability that section 12 says cannot be limited, or affects your statutory rights as a consumer, including under the Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013 and the Consumer Rights Act 2015. Section 13 (governing law and disputes) applies to Founding Membership in the same way as to the rest of these terms.
Some optional features contact third-party services directly from your phone (for example Wikipedia, Open-Meteo, the BBC, Yahoo Finance, your own email server, or an AI server you configure). Your use of those services is subject to their terms and privacy policies, not ours; we do not control them and are not responsible for their availability, accuracy or conduct. Where a feature needs your own credentials (an email app-password, an API key for a server you run), you are responsible for keeping them secure and for any charges the provider makes. If you configure an external AI server, you understand that your prompts are sent to it.
If you obtained ternii from Apple's App Store or Google Play, the store's own terms also apply, and where they conflict with these terms the store's terms prevail for that store's purposes. For the App Store in particular: this agreement is between you and Middletech, not Apple; Apple has no obligation to provide maintenance or support for the app; Apple is not responsible for any product-liability, legal-compliance or intellectual-property claims relating to the app, which are our responsibility to the extent permitted by law; in the event the app fails to conform to any applicable warranty you may notify Apple, which may refund the purchase price (none, for a free app), and Apple has no other warranty obligation; and Apple and its subsidiaries are third-party beneficiaries of these terms and may enforce them against you. You confirm you are not in a country subject to a US Government embargo or designated as "terrorist supporting", and are not on any US Government list of prohibited or restricted parties.
ternii, its name, the tern mark, the ternii Brain model and all software, design and content in the app and on the site are owned by Middletech or its licensors and protected by intellectual-property law. The app includes open-source components — including the llama.cpp / ggml inference runtime, QuickJS, Google ML Kit, and Android Jetpack libraries — used under their respective licences, which are listed in the app's About section. Nothing in these terms transfers any intellectual-property right to you other than the licence in section 2.
ternii is provided free of charge and is under active development. We do not promise that the app, its downloads or the site will be uninterrupted, error-free or available in every country, and we may change, suspend or discontinue any part of them, or these terms, at any time. If we change these terms materially we will update the date and version at the top and, where practical, tell you in the app. Continuing to use ternii after a change means you accept it. You can end this agreement at any time by deleting the app. We may end it if you breach these terms.
To the fullest extent permitted by law, ternii is provided "as is" and "as available", without warranties of any kind, express or implied, including any warranty of accuracy, fitness for a particular purpose, merchantability or non-infringement. This does not affect any rights you have as a consumer that cannot be excluded by law, including your rights under the Consumer Rights Act 2015 in respect of digital content.
Nothing in these terms limits or excludes our liability for death or personal injury caused by our negligence, for fraud or fraudulent misrepresentation, or for anything else that cannot lawfully be limited or excluded. Subject to that, to the fullest extent permitted by law, we will not be liable for any loss or damage arising from your use of, or inability to use, ternii — including any reliance on its output — whether in contract, tort (including negligence) or otherwise, and in particular for any indirect or consequential loss, loss of data, loss of profit, business or goodwill. Because the app is provided free of charge, our total liability to you for all claims relating to it is limited to £100. If you are a consumer, nothing here affects your statutory rights.
These terms are governed by the law of England and Wales, and the courts of England and Wales have jurisdiction over any dispute — except that if you are a consumer living elsewhere in the United Kingdom or in the European Union, you also benefit from any mandatory protections of the law of the place where you live and may bring proceedings there. If any part of these terms is found unenforceable, the rest continues to apply. These terms are the whole agreement between you and us about ternii.
Middletech Limited, a company registered in England and Wales (company number 16955822) with its registered office at 55 Colmore Row, Birmingham, England, B3 2AA.
Email: [email protected].