Slumber+ vs Gym Rest Timer
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Slumber+
Read full descriptionHide full description
Slumber+ is a sleep monitoring app that supports Garmin wearable devices. It uses more biological features than native software and uses machine learning for sophisticated sleep status classification. Slumber+ provides fundamental sleep, stress, and body-battery energy index. Shortly, we will provide "Slumber+ Premium," an AI algorithm based on big data, conduct group analysis according to demographic characteristics and lifestyles and give more customized suggestions on ways to improve sleep. This software supports Garmin wearable devices. Users must have a Garmin account and install the Garmin Connect software.
Gym Rest Timer
Read full descriptionHide full description
Rack the bar, tap once, and lift again the second your rest is up. RestRound times the rest between your sets and taps you on the shoulder โ right on the lock screen โ the moment it ends, so you stop watching the clock and stop guessing. Most timers forget you the moment the screen locks. RestRound's countdown is anchored to real time, so you can pocket your phone, load plates, even let iOS kill the app โ the end-of-rest alert still fires on the exact second, and it is marked time-sensitive so it cuts through your workout Focus mode. WHAT YOU GET โข One tap on the ring starts your rest; โ15 / +15 buttons adjust it mid-countdown when the rack tells you otherwise โข A lock-screen alert the exact second rest ends โ phone in pocket, app closed, Focus on, it still lands โข A rest profile for every lift: 3:00 for deadlifts, 0:45 for curls โ switch with one chip and the right countdown is already loaded โข Superset and circuit modes: short rest inside the pair or round, full rest after it, without touching the settings mid-session โข A set counter and session log, so you walk out knowing it was 24 sets, 41 minutes, average rest 1:38 โข Charts that show your average rest, weekly gym time and rest discipline per muscle group โ see when "90 seconds" quietly became three minutes PERFECT FOR โข Lifters who rack the bar, glance at their phone, and resurface four minutes later mid-scroll โข Strength programs where rest is prescribed โ 3 minutes between squat sets is part of the program, not a suggestion โข Superset and circuit training, where two different rest lengths alternate all session โข Anyone tired of re-typing 1:30 into the Clock app between every single set WHY NOT JUST THE STOPWATCH? The stopwatch makes you do the math and remember to look. The Clock app makes you re-enter the time every set and its alarm ignores your Focus mode. RestRound remembers the right rest for each lift, restarts with one tap, counts your sets, logs every rest you take โ and its alert is built to reach you mid-workout. PRIVATE BY DEFAULT Your lifts, sessions and stats stay on your iPhone. No account, no sign-in, no tracking, nothing leaves the device. FULL ACCESS RestRound Pro unlocks everything: unlimited lift profiles, superset and circuit modes, the full rest and gym-time statistics, and the two loudest alert tones. Choose a weekly subscription, a yearly subscription, or a one-time lifetime purchase โ subscriptions auto-renew unless cancelled at least 24 hours before the period ends. Set your rest once. Let the next set come to you. Download RestRound and time today's session. Terms of Use: https://leanstudio.asia/terms-of-use Privacy Policy: https://leanstudio.asia/privacy-policy Support: support@leanstudio.asia
Screenshots
Verdict
The clearest difference is update cadence: Slumber+ at every 5 days against Gym Rest Timer's every 4 months. Slumber+ also leads on iOS requirement (12.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Slumber+ ships an update every 5 days, Gym Rest Timer every 4 months. The most recent releases landed on October 13, 2026 and October 10, 2026 respectively.
| Parameter | Slumber+ | Gym Rest Timer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days โ better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod โ better | iPhone |
| Requires iOS | 12.0 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 12 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Li Te Chen | LEAN ASIA CO., LTD |
In-app purchases
Slumber+
No in-app purchases
Gym Rest Timer
No in-app purchases
Questions
Is Slumber+ free?
Is Gym Rest Timer free?
Do Slumber+ or Gym Rest Timer have ads?
Which is updated more often, Slumber+ or Gym Rest Timer?
Other comparisons















