Kelva

Some weeks run themselves. Others feel twice as heavy, on exactly the same plan. Most training apps do not know the difference. They show you the same session whether you slept seven hours or four. YOUR PROGRAMME STAYS PUT Progress comes from consistency and progressive overload, not from a programme being rebuilt every week. Kelva does not touch your training plan. What gets adjusted is today: a little less volume, a lower target, or a deliberate deload. Tomorrow your plan is exactly where you left it. WHAT KELVA WORKS FROM • Your sleep from Apple Health, measured against your own average rather than a textbook number • Your cycle day, if you share it • One tap in the morning: how do you feel today? The check-in is the only thing required. Without sleep data and without your cycle the app still works. It runs on what it has, and tells you on screen which inputs counted. ABOUT THE CYCLE, HONESTLY We do not tell you to train differently in a particular phase. The evidence does not support it: a 2023 systematic review found no influence of cycle phase on strength performance or on training adaptation. What is evidenced is something else: hormonal fluctuation affects energy, perceived exertion and recovery. That is what Kelva measures in you, rather than reading it off a chart. Your cycle day sits alongside as context: it explains why a day feels different. It is not an instruction. And it gets better the longer you use it. After four cycles the app knows your pattern, not a diagram's. TODAY'S SESSION, OPENED UP A session is a screen, not a note. Exercises with sets and reps, and behind them, once you open one up: the instructions step by step, which muscles work, what equipment you need, a substitute if the station is taken, and an easier version. Your week is built from your goal and what you tell the app, out of a hand-curated exercise catalogue. After that you rebuild it yourself: drag the blocks, move the days. ASK KELVA Kelva sits in the bottom right corner. You tap a question, she answers: what today asks of you, how an exercise is done, what to do instead, why today's session came out shorter. She also tells you what she does not say. No nutrition, no supplements, no diagnosis, nothing on pregnancy or menopause, no medication. If something hurts, she does not lead you deeper into the app. She points you to someone who can judge it. ONE PERSON IN IT WITH YOU You can link a friend. She sees exactly one thing: whether you completed your planned week, as a count of finished sessions. Not your cycle. Not your sleep. Not your check-ins. Not what or how heavy you trained. YOUR DATA STAYS ON YOUR DEVICE Sleep, cycle and your daily check-ins are stored and calculated on your iPhone. They are not sent to our server, not held in any backup of ours, and not passed on. That is not a statement of intent. There simply is no endpoint for these values. Sleep and cycle are authorised separately, and we never write anything back to Apple Health. FREE, AND KELVA PLUS Free, permanently: the training week, the sessions with their instructions, the daily check-in, your shape as one number, asking Kelva, and one person in it with you. Kelva Plus takes the adjusting off your hands: Kelva changes today's session herself instead of suggesting it to you. Along with your full history, export to your calendar, and up to five people instead of one. Kelva Plus is an auto-renewing subscription, monthly or yearly. It renews unless you turn it off in your App Store settings at least 24 hours before the period ends. Purchases can be restored in the app. Requires an iPhone on iOS 16.4 or later. Privacy Policy and Terms of Use https://kelva.space/privacy https://kelva.space/terms