Comparison

TimerNinja vs Simple Stretch Timer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

TimerNinja

Track time for workouts and productivity with versatile timer options. Supports Apple Watch integration, Apple Health recording, and SharePlay for synchronized challenges with friends. Offers customizable themes and multiple timer types.

Highlights
  • Multiple timer types (Stopwatch, Countdown, Intervals, EMOM, Pomodoro)
  • Apple Watch standalone app and remote control
  • Record workouts to Apple Health
  • SharePlay for synchronized workouts with friends
  • Customizable dark and light themes
  • Standalone Apple Watch app
Features
Read full description

TimerNinja is the simple, flexible interval timer for workouts, training sessions, and any other timed activity — on iPhone, iPad, Apple Watch, Apple TV, Mac, and Apple Vision Pro. TIMERS FOR EVERY ACTIVITY • Stopwatch — count up, with an optional time cap • Timer — a simple countdown • Intervals — work/rest rounds • Multi-interval — chain interval groups together • EMOM — Every Minute On the Minute • Tabata — 20 seconds on, 10 seconds off • Pomodoro — focus and break cycles (Plus) • Custom — build anything with nested, repeating intervals (Plus) YOUR TIMER, EVERYWHERE • Live Activities keep your timer on the Lock Screen and in the Dynamic Island • Start your favorite timers from Home Screen and Lock Screen widgets • Control Center controls let you start, pause, and resume without opening the app • Siri & Shortcuts: start any saved timer by voice, automate your routine, or put it on the Action Button on Apple Watch Ultra • Your saved timers show up in Spotlight search BUILT FOR APPLE WATCH • Run timers standalone on your watch, or use it as a remote control for the timer on your iPhone • Record workouts to Apple Health with heart rate and calories — just pick an activity type when you start • Watch-face complications and Smart Stack support put your timers one tap away ALWAYS IN SYNC • Saved timers sync automatically across your devices with iCloud • SharePlay keeps timers perfectly in sync with friends anywhere in the world — challenge them to a workout • Share any timer as a link; anyone can open it instantly, even without the app SOUNDS THAT CUT THROUGH • Clear countdown beeps, interval cues, and finish sounds • Spoken announcements that call out each interval by name (Plus) • Extra sound packs — Airhorn, Ruan, Taiko, and more (Plus) MADE TO BE GLANCED AT • A distraction-free full-screen timer you can read from across the gym • Beautiful light and dark themes for both the app and the timer screen • Localized into 11 languages TimerNinja is free to use. TimerNinja Plus unlocks the Pomodoro and Custom timer types, spoken announcements, and extra sound packs. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.timerninja.com/privacy

About

Simple Stretch Timer

This app helps you time your stretches with customizable duration and alert settings. It offers vibration and sound cues, allowing you to keep your device in your pocket. Designed for simplicity, it requires no complex setup or user accounts.

Highlights
  • Customizable timer duration
  • Sound alerts
  • Vibration alerts
  • Repeat timer function
  • Pocket-friendly vibration cues
  • No user accounts
Features
Read full description

Simple Stretch Timer is your trusty stretching companion. This timer is as simple as it gets: no settings pages, no premium features, no user accounts, no headaches. Just time your stretch. Control timer duration, sound alerts, vibration alerts and toggle repeat to create a timer that fits your needs. And with strong vibration cues, you can keep it in your pocket without missing a beat. Don't waste time learning how to use a new timer. Keep it simple, and get Simple Stretch Timer today! (This app will always be 100% free and private: it will never have in-app purchases or a premium counterpart and no data will be collected from users by the developer or any third party.)

Screenshots

TimerNinja4 screens
Simple Stretch Timer3 screens

Verdict

The call

The clearest difference is in-app purchases: Simple Stretch Timer at none against TimerNinja's 4. Simple Stretch Timer also leads on rating (4.9 vs 4.4) and iOS requirement (15.0 vs 26.0). TimerNinja's advantage is update cadence (every 3 weeks vs every 22 months) and device support (6 vs 2). On price, review sentiment, ratings volume and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. TimerNinja sells 4 in-app purchases, starting at $2.99 per month. Simple Stretch Timer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Simple Stretch Timer holds the better App Store score, 4.9 against 4.4. Both are backed by a comparable volume of ratings — 8 and 23 respectively. Written reviews point the same way: 83% of TimerNinja's written reviews are positive against 88% of Simple Stretch Timer's.

UpkeepUpdate frequency

TimerNinja ships an update every 3 weeks, Simple Stretch Timer every 22 months. The most recent releases landed on September 24, 2026 and September 27, 2026 respectively.

Scorecard6 real differences · 4 level
TimerNinja versus Simple Stretch Timer: the parameters behind the verdict, then further details
ParameterTimerNinjaSimple Stretch Timer
PriceFreeFree
Rating4.4 (8 ratings)4.9 (23 ratings) — better
Positive reviews83.3% of reviews87.5% of reviews — better
Number of ratings823 — better
Update frequencyEvery 3 weeks — betterEvery 22 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad, Mac, Apple TV, Apple Watch, Vision Pro — betteriPhone, iPod
Requires iOS26.015.0 — better
Further details — not scored
Size11 MB0 MB
Age rating4+4+
DeveloperHeftii, Inc.Rex Garland

Customer experience

TimerNinja

All ratings8 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

Simple Stretch Timer

All ratings23 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews16 reviews
Positive87.5%
Neutral6.3%
Negative6.3%

In-app purchases

4 purchases

TimerNinja

Subscriptions4
  • TimerNinja+ Monthly$2.991 Month
  • TimerNinja+ Family Monthly$3.991 Month
  • TimerNinja+ Yearly$9.991 Year
Show 1 more
  • TimerNinja+ Family Yearly$14.991 Year
None

Simple Stretch Timer

No in-app purchases

Questions

Is TimerNinja free?
TimerNinja is free to download, with in-app purchases available.
Is Simple Stretch Timer free?
Simple Stretch Timer is free to download, with no in-app purchases.
Which has better reviews, TimerNinja or Simple Stretch Timer?
Simple Stretch Timer is rated higher. TimerNinja averages 4.4 out of 5 from 8 ratings, while Simple Stretch Timer averages 4.9 from 23 ratings.
Do TimerNinja or Simple Stretch Timer have ads?
Neither TimerNinja nor Simple Stretch Timer shows ads.
Which is updated more often, TimerNinja or Simple Stretch Timer?
TimerNinja ships an update every 3 weeks, and Simple Stretch Timer every 22 months. Most recently, TimerNinja was updated on September 24, 2026 and Simple Stretch Timer on September 27, 2026.

Other comparisons