Terms of Service

Last updated 29 September 2026

Who you are dealing with

Kaive is operated by ElCapStudios, a business established in Ireland. These terms are a contract between you and us. Using the app means you accept them.

To contact us about anything on this page, email support@kaive.app.

This is not medical advice

This is the most important thing on this page, so it comes first rather than buried in clause 14.

Kaive is a fitness and nutrition tracker. It is not a medical device, and nothing in it is medical advice, diagnosis or treatment. Its calorie targets, training loads, recovery scores and coaching suggestions are calculated from general formulae and from what you have told it. It does not know your medical history.

Some features, such as the AI coaches, session analysis and photo food logging, use an AI model. AI output can be wrong. Check it before you rely on it.

Talk to a doctor before starting a new training or eating plan, particularly if you are pregnant, have a heart condition, diabetes, an eating disorder or a history of one, an injury, or you are taking medication that affects your heart rate or appetite.

The heart rate, sleep and recovery figures shown come from consumer wearables. They are estimates. Do not use them to make a medical decision. If you feel unwell during exercise, stop, whatever the app says.

If you are struggling with food or with your body, the calorie and weight tracking in this app may do you more harm than good. In Ireland, Bodywhys offer support at bodywhys.ie. Please talk to somebody.

Your account

You need to be at least 16 to use Kaive.
Give us an email address that works. It is how you recover your account.
Your account is yours. Do not share it.
Tell us at security@kaive.app if you think somebody else has got into it.
You can delete your account at any time, from Settings. See deleting your account for what goes, what we must keep, and why.

Membership

Kaive is a paid product

A new account gets 30 days of full access, and we do not ask for a card to start it. The trial starts when you create your account. Nothing is charged, and nothing renews on its own at the end.

There is one free trial for each email address. If an address has had a trial before, a new account with that address starts without one. Deleting your account and signing up again does not give you a second trial.

There is no ongoing free tier. When the trial ends, the app locks until you start a membership. It also locks when a membership ends, or when free access from us ends. We say that here in plain words because it is the thing people most want to know and most often find out too late.

What happens when it locks

Locked means you cannot log, sync, use the coaches or plans, see your history in the app, or use friends, sharing and challenges. It does not mean you lose anything. We do not delete a locked account, and we do not thin out its history.

These stay open to you while your account is locked:

Settings. There you can start a membership, redeem a code, export your data, delete your account or sign out.
Any share link you already made. It keeps working, and it stays public.

Your data export stays available, so you can always take a machine-readable copy of your records. Your in-app history stays locked until you start a membership. Then everything comes back as you left it.

Where you can buy, and how billing works

Kaive is sold through three channels. Which one you use depends on where you buy:

On the web, through Stripe.
In the iPhone or iPad app, through the Apple App Store.
In the Android app, through Google Play.

You see the price before you pay, in the channel you use. Nothing is charged until you confirm.
Each channel bills and renews your subscription on its own. Cancelling in one channel does not cancel a subscription in another.
Subscriptions are billed in advance, monthly or annually.
Prices include VAT where it applies to you.
Subscriptions renew automatically until you cancel.
If we change a price, we will tell you at least 30 days before it affects you, and you can cancel before it does. Apple and Google can also ask you to agree to a price rise, under their own rules.

Cancelling

Cancel any time. Cancelling should not be harder than starting.

Where you cancel depends on where you bought. We do not cancel store subscriptions. Apple or Google holds them, so you cancel with the store that billed you:

Bought on the web: in a web browser, Settings, then Membership, then Manage billing, card and invoices.
Bought through Apple: your Apple account settings, under Subscriptions.
Bought through Google: Google Play, under Payments and subscriptions.

Whichever it is, you keep full access until the end of the period you have already paid for. We do not cut you off the moment you cancel. We do not refund the unused part of a period, except where this page says so.

Your 14-day right to change your mind

As a consumer in the EU, you can withdraw from a contract for a digital service within 14 days of making it, without giving a reason. That 14 days is set by law. It is a separate thing from the 30-day trial.

The free trial does not use up any of it. The trial takes no card and charges nothing, so there is no contract for a paid service until you subscribe. The 14 days start on the day you subscribe and pay. They do not start on the day you signed up. If you never subscribe, none of this applies to you.

The law lets this right end early in one case. That is when the service has been fully performed, after you asked for it to start at once and accepted that you would lose the right. A subscription is not fully performed within 14 days, and our web checkout does not ask you to give up the right. So:

If you subscribed on the web and change your mind within 14 days, email support@kaive.app and we will give you a full refund. We would rather do that than argue about it.

If you subscribed through Apple or Google, ask them. The store took the payment, so a refund goes through the store, under its own rules. Ask Apple at reportaproblem.apple.com. Ask Google through Google Play. If the store refuses a refund you think you are owed, email support@kaive.app and we will help you.

Access codes

You redeem a code in Settings, then Membership. Codes granting free or discounted access have no cash value, cannot be exchanged for money, and may be withdrawn if they are shared publicly or used in a way they were obviously not meant for.

Founding medals

Our flagship challenge, Climb Everest, comes with a real, physical founding medal for the first 100 qualifying members who finish it. Joining does not earn a medal. Finishing does.

To qualify, you need an annual membership. Free access that we gave you by hand also qualifies, and so does the free access that some access codes give. A monthly membership or the free trial does not qualify, because a medal costs real money to make and post.

Only qualifying finishers count, in the order they finished. You must still qualify when we post your medal. If you stop qualifying before then, for example because your annual membership ends, you lose your place, and everybody behind you moves up one place. If you are not in the first 100 places, you do not get a medal.

If you earn a medal, we will email you to ask where to send it. We will use your postal address to send the medal and for nothing else. If a medal arrives damaged or never arrives, email support@kaive.app and we will sort it out.

Sharing, friends and challenges

Most of Kaive is private to you. These parts are not, so know which is which before you use them. They work only while you have full access.

Friends. You add a friend with their friend code or invite link, and they must accept. Anybody you give your code or invite link to can see the name on your profile. Being friends shows them nothing else. A friend sees an item only when you send it to them.
Sent items are public links. When you send an activity, workout or plan to a friend, Kaive makes a link to a short summary of it. Anybody who has the link can open it, with no account and no sign-in, and your friend can forward it. Treat it as public, because it is. We count how many times it is opened.
What a link shows. It shows the item's name and date, and headline figures such as distance, time, power, speed, climbing or training load. It does not show your name, heart rate, calories, notes, GPS route or body weight.
Taking a link back. To switch a link off, email support@kaive.app with the link and we will do it. It then stops working at once. Removing a friend does not switch off a link you already sent. Deleting your account switches off all of your links. Copies that other people already made, such as screenshots, are outside our control.
Challenges are private. Other members cannot see that you joined a challenge or how far you got. We count finishers to award founding medals.

Be decent to other people. Do not put anything abusive or unlawful, or anybody else's personal data, in something you send. We may switch off a link, or suspend an account, for any of that.

What you upload

Meal and fridge photos. When you photograph a meal, or the inside of your fridge, freezer or cupboard, the photo goes to our AI provider to be read. We do not keep it. What comes back is a suggestion for you to check before you save anything.
Progress photos. These are stored in a private folder that only your account can open.
Dictation. When you speak instead of typing, your phone or browser turns your speech into text. We get the text, not a recording. Text you dictate is treated like text you type.

Only upload what is yours to upload. Do not upload photos of other people without their permission. The Privacy Policy says where this material goes and how long it is kept.

What you may not do

Break the law with it.
Try to get at other people's data, or at parts of the service that are not yours.
Scrape it, resell it, or run it as the back end of something else. The AI features cost us money per request and are for personal use.
Upload anything you do not have the right to upload.
Deliberately try to break it. Reporting a flaw is welcome; exploiting one is not.

We may suspend an account that does these things. Where it is reasonable to do so, we will tell you why first.

Your data belongs to you

You keep ownership of everything you put into Kaive. You give us only the permission we need to run the service for you: to store it, show it back to you, process it for the features you use, and show the parts you choose to share to the people you share them with.

We do not sell it and we do not use it for advertising. The Privacy Policy sets out the detail.

You can export your data from Settings at any time, as JSON or CSV, even while your account is locked. Do it now and then. It is your history.

Some honest limits on that export. It is read table by table rather than frozen at a single instant, so a change you make while it runs can be missed or repeated. It comes with a note that says whether every part finished. It includes the records of your progress photos, but not the photo files. It leaves out security secrets, such as the keys to services you connected. When nothing changes while it runs and the note says every part finished, it holds all your other records.

What we promise, and what we do not

We will try to keep Kaive running and working. We cannot promise it will never be down, never lose data, or never be wrong. It depends on services we do not control, and on wearables whose measurements we cannot verify.

So the service is provided as it is. To the extent the law allows, we are not liable for indirect losses, or for anything arising from you relying on a number in this app in place of professional advice.

Nothing here limits liability for death or personal injury caused by our negligence, for fraud, or for anything else that cannot lawfully be limited. If you are a consumer, your statutory rights are unaffected by anything on this page.

Where we are liable, that liability is capped at what you paid for Kaive in the 12 months before the claim.

Ending it

You can stop at any time by deleting your account. Deleting it removes your data straight away, but a few things must survive it. We keep a one-way hash of your email address, so that the free trial cannot be claimed twice. We keep the payment and tax records that the law makes us keep. Backups keep a copy until they expire. Deleting your account lists all of them.

If you pay on the web, deleting your account cancels that subscription at once, and your access ends with the account. Deleting does not refund the rest of the period. If you want to ask about a refund, email support@kaive.app before you delete.

Deleting your account does not cancel a subscription bought through Apple or Google. Cancel that with the store first, or it will keep billing.

We may end or suspend your access if you seriously or repeatedly break these terms, or if we stop offering the service. If we stop offering it, we will give you reasonable notice and time to export your data.

Changes to these terms

We may update these terms. If a change materially affects you, we will tell you in the app at least 30 days beforehand, and continuing to use Kaive after that means you accept them. If you do not accept them, cancel, and we will refund the unused part of your subscription. If you bought through Apple or Google, that refund goes through the store, and we will help you ask for it.

If you got the app from Apple or Google

These terms are between you and us only. They are not with Apple or with Google. We, not Apple or Google, are responsible for Kaive and its content.

If you got the app from the Apple App Store, these terms also apply:

Licence. We give you a personal licence, which you cannot transfer, to use the Kaive app on Apple devices that you own or control, as the Usage Rules in Apple's Media Services Terms and Conditions allow.
Maintenance and support. We alone are responsible for maintenance and support. Email support@kaive.app. Apple has no obligation at all to give maintenance or support for the app.
Warranty. We alone are responsible for any product warranty, stated or implied by law, to the extent the law does not let us exclude it. If the app does not conform to a warranty that applies, you can tell Apple, and Apple will refund the price you paid for the app, if any. To the maximum extent the law allows, Apple has no other warranty obligation for the app. Any other claims, losses, liabilities, damages, costs or expenses that come from a failure to conform to a warranty are our responsibility.
Product claims. We, not Apple, are responsible for any claim by you or by anybody else about the app, or about your use of it. This includes product liability claims, claims that the app does not meet a legal or regulatory requirement, and claims under consumer protection, privacy or similar laws. It also includes claims about how the app uses Apple Health.
Intellectual property. If anybody claims that the app, or your use of it, infringes their intellectual property rights, we, not Apple, are responsible for the investigation, defence, settlement and discharge of that claim.
Legal compliance. You confirm that you are not in a country that is under a US Government embargo, or that the US Government has named as a country that supports terrorism. You also confirm that you are not on any US Government list of prohibited or restricted parties. You must not use or export the app in breach of export control or sanctions laws.
Third-party terms. When you use the app, you must also obey the terms of any third party that apply to you, such as your mobile network's terms.
Third-party beneficiary. Apple and Apple's subsidiaries are third-party beneficiaries of these terms. When you accept these terms, Apple has the right (and is taken to have accepted the right) to enforce them against you as a third-party beneficiary.
Contact. Send any question, complaint or claim about the app to ElCapStudios, Ireland, at support@kaive.app.

If you got the app from Google Play, Google Play's own terms also apply to your purchase. Google is not responsible for Kaive or for anything in it.

Law and disputes

These terms are governed by Irish law, and the Irish courts have jurisdiction. If you are a consumer resident elsewhere in the EU, you keep the protection of your own country's mandatory consumer law and may bring proceedings there.

Before any of that, please just email support@kaive.app. Nearly everything is solvable that way.