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Frequently asked questions
How does Kelva decide what today's session should be?
From three things: your one-tap check-in, your sleep as read from Apple Health, and your cycle day if you share it. Only the check-in is required. The screen tells you which inputs actually counted, so you never have to guess whether a number was real.
Does my training plan change every week?
No, and that is the point. Progress comes from consistency and progressive overload. What Kelva adjusts is today: a little less volume, a lower target, or a deliberate deload. Tomorrow your plan is exactly where you left it.
Do I have to share my cycle?
No. Sleep and cycle are authorised separately from everything else and the app works without either. It runs on what it has.
Does Kelva tell me to train lightly in a particular phase?
No. A 2023 systematic review found no influence of cycle phase on strength performance or on training adaptation, so we do not build on that. Your cycle day sits alongside as context: it helps explain why a day feels different. It is never an instruction.
How do I link a friend?
Open the Friends tab and pick one of the three ways: send an invite link, show the QR code, or enter a code she gives you.
What can she actually see?
Whether you completed your planned week, as a count of finished sessions. Optionally your streak and your training week, both of which you switch on yourself and can switch off again. Never your cycle, your sleep, your check-ins, your readiness figure or the individual exercises.
Where is my data stored?
Your sleep, your cycle and your daily check-ins are stored and calculated on your iPhone and are not sent to us. Your account and your link to a friend live on servers in Europe. Nothing is sold or passed to advertisers, and nothing is ever written back to Apple Health.
What is Kelva Plus, and how do I cancel it?
Kelva Plus takes the adjusting off your hands: Kelva changes today's session herself instead of suggesting it, plus your full history, calendar export and up to five people instead of one. To cancel, open the Settings app on your iPhone, tap your name, then Subscriptions, then Kelva. Already paid on another device? Tap Restore purchases in the app.
How do I delete my account?
Open Settings inside the app and tap Delete account. That removes your data permanently.