SleepTracker vs TrainReaddy
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
SleepTracker
Read full descriptionHide full description
SleepTracker records your sleep automatically with an Apple Watch β or with just your iPhone on the mattress β and turns the night into a clear picture of your stages, heart rate, and recovery. No setup, no account, nothing to configure. No account. No sign-up. No email. No ads. Open it, allow Apple Health, and go to bed. HOW IT WORKS β’ Wear an Apple Watch to bed and open the app β sleep stages, heart rate, HRV, and breathing sync straight from Apple Health β’ No watch? Set your iPhone on the mattress and tap Track Sleep with iPhone β it uses movement and sound to estimate your night β’ Numbers match the Apple Health app exactly, down to the minute WHAT YOU GET β’ Sleep rings that show Sleep, Quality, and Deep at a glance β’ Full stage breakdown β Deep, REM, Light, and Awake β’ Bedtime, wake time, time to fall asleep, and sleep efficiency β’ Readiness, Sleep Fuel, and Recovery scores built from your real HRV β’ Heart rate, HRV, SpO2, and respiratory rate with Apple Watch β’ A smart alarm that wakes you in a lighter stage near your target time β’ Sleep consistency, trends, history, and a calendar of every night β’ Tags for caffeine, late meals, workouts, and stress, so you can see what actually changes your sleep BUILT BY ONE PERSON I built SleepTracker for myself, in a year when AI finally made something like this achievable alone β then kept building whatever people asked for. No team, no investors, and no roadmap written by anyone but the people using it. And no subscription: sleep data you already own shouldn't be rented back to you month after month. YOUR SLEEP DATA STAYS ON YOUR PHONE Sleep and health data is read from Apple Health only after you allow it. Microphone audio is analyzed on your device and is never recorded, stored, or uploaded. There is no account to create and no profile to sell. No tracking of you across other companies' apps or websites, and nothing shared with data brokers. TELL ME WHAT TO BUILD See something in another sleep app that you wish this one had? Email mark@vibecode.review. I read every message and I build what people actually ask for β that is how most of this app got here. Sleep better by understanding your nights, automatically.
TrainReaddy
Read full descriptionHide full description
Are you training too much, too little, or just right? TrainReaddy answers this question every dayβbased on the heart rate data youβre already tracking in Apple Health. TrainReaddy uses your workouts to calculate your fitness level, fatigue, and form, and shows you which training zone youβre currently in: from under-training to overtraining. It also provides a daily recovery recommendation based on your HRV*. When connected to Strava, TrainReady suggests suitable routes from your past rides to help you hit your optimal training zone. No power meter required. No subscription required. No cloudβall data stays on your iPhone. * If available in Apple Health Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
SleepTracker and TrainReaddy are too close to call on the numbers: across 6 compared parameters β price, update cadence, ads and in-app purchases among them β neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. SleepTracker sells 3 one-off in-app purchases and TrainReaddy sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.
| Parameter | SleepTracker | TrainReaddy |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days | Every 3 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone |
| Requires iOS | 16.4 β better | 17.0 |
| Further details β not scored | ||
| Size | 61 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Meng-Yi Hsu | Christian Gelbach |
In-app purchases
SleepTracker
- All-Apps Unlock$5.99
- Unlock SleepTracker$7.99
- Unlock SleepTracker Final$9.99
TrainReaddy
- Unlock Now1 Month trial$1.991 Month









