Capacity vs RekAi
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Capacity
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Build your capacity to move. Start your 7-day free trial. Capacity is a guided stretching and mobility app designed to help you move more comfortably, one session at a time. Whether youβre loosening up in the morning, resetting after hours at a desk, preparing for a workout, or making time for a full-body stretch, Capacity gives you clear routines that fit into everyday life. Choose the difficulty that feels right today and adjust it as you move. Capacity offers progressive variations for each movement, helping beginners start comfortably while giving experienced users room to challenge themselves. MOBILITY AT YOUR LEVEL - Choose from Easy, Medium, Hard, and Advanced movement variations - Adjust your difficulty during a session - Change movement times to suit your body and schedule - Pause, skip, or take extra rest whenever you need it - Follow clear instructions and visual movement guidance ROUTINES FOR REAL LIFE Explore guided routines for: - Morning mobility - Upper- and lower-body stretching - Posture resets after sitting - Dynamic warm-ups - Full-body movement - Travel and in-flight stretching - Quick sessions when time is limited Pin your go-to routines, save favorites, and browse by focus area or session length. CREATE YOUR OWN ROUTINES Build a mobility practice around what your body needs. Choose movements from the library, set their duration, arrange them in any order, and select the variation you want to perform. Save, edit, and repeat your custom routines whenever they fit your day. PROGRAMS FOR YOU Repeat routines on a schedule that fits you, build a stretching habit that sticks and improve at your own pace. SEE YOUR PROGRESS Capacity helps consistency feel rewarding without turning movement into another source of pressure. - Track your stretching time - Build and maintain a daily streak - See how many unique movements youβve completed - Review your activity history - Unlock achievements as you progress - Celebrate every completed session BUILD A ROUTINE THAT STICKS Choose the days you want to move and set reminders for the time that suits you. Short, approachable sessions make it easier to beginβand easier to return tomorrow. SIMPLE AND PRIVATE Capacity doesnβt require an account. Your workout history, routines, preferences, and progress are stored locally on your device. Mobility isnβt about forcing your body into extreme positions. Itβs about expanding what feels comfortable, staying consistent, and building confidence in the way you move. Build your capacity. Move more freely. Download the app and start your 7-day free trial. Get full access to the library, progress tracker and custom routine builder. Terms of Service: https://www.capacitystretching.com/terms Privacy Policy: https://www.capacitystretching.com/privacy
RekAi
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RekAi builds you a workout, then coaches you through it. Tell it what equipment you have, how long you've got and what hurts today. It writes a session around that β the right movements in the right order, with the weight and reps already worked out for your bodyweight and experience. BUILT FOR YOU, NOT PICKED FROM A LIST Every session is written for the equipment in front of you, the time on your clock and the state of your body that day. Tweaked your shoulder? It programmes around it and keeps programming around it until you say otherwise. You are unique and RekAi makes sure that to keep it that way IT REMEMBERS YOU Finish a session and the next one starts where you left off. Loads climb when you handle them and hold when you don't. Muscles you trained hard get left alone to recover. Nothing repeats inside a week. A REAL PROGRAM, NOT JUST TODAY Train towards something β get stronger, lean out, a date in the diary β and RekAi lays out the weeks to get there, then writes each session in its place. WHILE YOU TRAIN A clear timer you can read from the floor. Audio cues so you can put the phone down. Demonstrations of every movement. Swap any exercise mid-session when the rack is taken. Log what you actually did, not what you were told to do. WHAT IT WON'T DO It won't invent numbers. Weights come from arithmetic on what you've lifted, and the session totals are the real totals. FREE TO TRY Three sessions without an account, seven once you've made one. After that, a monthly subscription keeps your coach, your program and everything you've logged. Subscriptions: RekAi offers monthly and yearly auto-renewable subscriptions. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in your App Store account settings. Terms of Use: https://www.rekaicoach.com/terms Privacy Policy: https://www.rekaicoach.com/privacy
Screenshots
Verdict
The clearest difference is update cadence: RekAi at daily against Capacity's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Capacity sells 2 in-app purchases, starting at $7.99 per month and RekAi sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
Capacity ships an update every 2 months, RekAi daily. The most recent releases landed on November 10, 2026 and October 31, 2026 respectively.
| Parameter | Capacity | RekAi |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Daily β better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone, iPad β better |
| Requires iOS | 18.0 | 17.0 β better |
| Further details β not scored | ||
| Size | 46 MB | 56 MB |
| Age rating | 17+ | 4+ |
| Developer | Cameron Jules | Gal Blank |
In-app purchases
Capacity
- Pro Monthly Subscription7 Days trial$7.991 Month
- Pro Annual Subscription7 Days trial$49.991 Year
RekAi
- RekAi Monthly$2.991 Month
- Annual Membership$29.991 Year









