Kelvy · Avokado Labs · avokadoapps@gmail.com

Support

Last updated 29 September 2026 · Privacy Policy · Terms of Use

Write to avokadoapps@gmail.com and we will normally answer within two business days. Support is available in English and Turkish.

It helps if you tell us your iPhone model and iOS version, your Apple Watch model if the problem is on the watch, what you expected to happen and what happened instead. We never ask for your Apple ID password or payment details.

Stay safe

Cold water and high heat put real strain on the body. Kelvy is a timer and a log, not medical advice. Start short, never plunge or sit in a sauna alone, get out if you feel dizzy, numb or unwell, and talk to a doctor first if you have a heart condition, high blood pressure, or are pregnant.

1Getting started

Start a session from the Start button, or tap a Quick Start card on the home screen. Pick the type, set the temperature and the target time, then go.
Log a past session from the same sheet: tap Log manual entry at the bottom.
Follow a routine from Explore. Each protocol walks you through its cold, heat and rest steps in order.
Connect Apple Health if you want your sessions saved as workouts. It is optional; Kelvy works without it.

2Troubleshooting

My sessions are not showing up in Apple Health

Open the Health app, go to Sharing → Apps → Kelvy, and check that Kelvy is allowed to write Workouts and Water Temperature. Only sessions finished after access was granted are saved; earlier sessions stay in Kelvy.

I can't hear the spoken cues

Spoken cues are part of Kelvy Pro and can be switched on or off with the speaker button on the timer and in Settings. Check the media volume, and that a Bluetooth speaker or headphones are not taking the sound somewhere else.

My streak broke

A streak counts days with at least one session. If you know you will skip a day, tap Rest next to Streaks on the home screen and choose today, a few days or a week; your streak keeps running while you rest.

The temperatures look wrong

Choose °F or °C in Settings. Every session is stored in one unit and converted for display, so switching units changes how your whole history is shown without changing any of it.

I want the app in another language

Kelvy is available in English, German, Spanish, French, Brazilian Portuguese and Japanese. It follows your iPhone's language unless you pick one in Settings. The Apple Watch app always follows the watch's system language.

I deleted a session by mistake

Deleted sessions cannot be recovered: your history lives only on your device and we hold no copy. You can add it back with Log manual entry.

3Apple Watch

Kelvy isn't on my watch

Open the Watch app on your iPhone, scroll to Available Apps and tap Install next to Kelvy. The watch app is free.

A session I did on the watch hasn't reached my iPhone

A session finished on the watch is kept on the watch until your iPhone confirms it has saved it, so it is not lost. Bring the watch near your iPhone and open Kelvy on the phone; the session is handed over once the two can talk to each other.

Heart rate shows a dash

Heart rate comes from the watch during a session. Wear it snugly above the wrist bone, and make sure Kelvy has permission to read heart rate in the Health app.

4Subscription and billing

Timing, logging, your full session history, streaks, weekly goals and the Apple Watch app are free. Kelvy Pro adds the full protocol library, your own custom protocols, spoken cues, insights (activity heatmap, averages, records, heart rate trends) and CSV export. It is an auto-renewing subscription, weekly with a free trial for eligible new subscribers or yearly. Prices are shown in your local currency before you confirm.

Restore a purchase — open the Pro screen in Kelvy and tap Restore purchase while signed in with the Apple ID you used to buy it.
Manage or cancel — iOS Settings → your name → Subscriptions → Kelvy. Cancelling keeps Pro until the end of the paid period. Deleting the app does not cancel a subscription.
Refunds are handled by Apple at reportaproblem.apple.com; we cannot issue them ourselves. Write to us anyway if something went wrong — we would rather know.

5Privacy

Kelvy has no account system, no ads and no analytics, and your sessions stay on your device. Deleting the app removes everything it stored; what Kelvy already wrote to Apple Health stays there until you delete it in the Health app. The details are in the Privacy Policy.

6Feature requests and bugs

Both go to avokadoapps@gmail.com. Tell us what you were doing, which session type and whether it happened on the iPhone or the watch — those are the reports we can fix fastest.