Comparison

Simple Interval Timer vs Personal Interval Timer

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

Head to head
About

Simple Interval Timer

This app provides a straightforward interval timer for various training types like running, cycling, and HIIT. Customize sets, action, and break durations for a personalized workout experience. It runs in the background and saves recent configurations.

Highlights
  • Customizable sets, action, and break durations
  • Plain and simple design
  • Saves last 5 configurations
  • Runs in the background
  • iOS screen dimming prevention
  • Apple Watch integration with heart rate monitoring
Features
Read full description

Simple Interval Timer (SIT) can be used for any kind of interval training, such as running, cycling, HIIT sessions (including Tabata method), stretching, etc. SIT is exactly what you would expect. An interval timer, which is easy to set up and use. It features a nice plain design, with no unnecessary controls. Adjust Number of Sets, Action and Break duration to your needs and you are ready to go! On the iOS an extra switch control allows you to prevent the screen from dimming. SIT remembers the last 5 configurations you have used. Swipe left across the Settings screen to switch to another configuration. SIT can run in the background, while you are playing music, watching videos or doing anything else on your iOS device. SIT Watch features the same simplicity as the iOS app while offering the same functionality, plus it will measure your heartbeat during the workout sessions. The recordings will be available in the Apple's Health app. SIT Watch runs independently of the phone, so no need to have your phone around during your workouts (although you will need your phone during the very first time you launch SIT watch). SIT lets you avoid any tedious set up and focus on your training!

About

Personal Interval Timer

This app helps you manage timed workouts for sports like boxing, HIIT, and Tabata. It offers customizable presets, workout history tracking, and works with a locked screen and background music. Share your routines with friends and receive voice or bell notifications.

Highlights
  • Works with locked screen
  • Plays with background music
  • Saves custom presets
  • Share workouts with friends
  • History and progress charts
  • Voice or bell notifications
Features
Read full description

Simple interface to do sport without wasting time. Personal Interval Timer is good for Boxing, MMA, BJJ, HIIT, Tabata, and any activity with intervals. Features: - Works with the locked phone with a black screen - Works while your music is playing - Saving your customized presets/workouts - Sharing workouts with friends - Shows your history and the progress in charts - Voice or bell notifications

Screenshots

Simple Interval Timer4 screens
Personal Interval Timer4 screens

Verdict

The call

The clearest difference is update cadence: Personal Interval Timer at every 4 weeks against Simple Interval Timer's every 8 months. Personal Interval Timer also leads on review sentiment (100% vs 85%). Simple Interval Timer's advantage is ratings volume (5.4K vs 14). On price, rating, ads and in-app purchases 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. Simple Interval Timer sells 4 one-off in-app purchases and Personal Interval Timer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Simple Interval Timer against 4.8 for Personal Interval Timer. That said, the two scores are not equally well evidenced: Simple Interval Timer has 5.4K ratings behind it against 14, so its average is the more settled of the two. Written reviews are what separate them: 85% of Simple Interval Timer's written reviews are positive against 100% of Personal Interval Timer's.

UpkeepUpdate frequency

Simple Interval Timer ships an update every 8 months, Personal Interval Timer every 4 weeks. The most recent releases landed on September 22, 2026 and August 25, 2026 respectively.

Scorecard3 real differences · 7 level
Simple Interval Timer versus Personal Interval Timer: the parameters behind the verdict, then further details
ParameterSimple Interval TimerPersonal Interval Timer
PriceFreeFree
Rating4.9 (5.4K ratings) — better4.8 (14 ratings)
Positive reviews84.7% of reviews100.0% of reviews — better
Number of ratings5.4K — better14
Update frequencyEvery 8 monthsEvery 4 weeks — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPod, Apple WatchiPhone, iPad, iPod
Requires iOS14.514.2 — better
Further details — not scored
Size10 MB7 MB
Age rating4+4+
Developer0FFAlexApps.Net Co

Customer experience

Simple Interval Timer

All ratings5,444 ratings
Positive97.6%
Neutral1.2%
Negative1.2%
Written reviews398 reviews
Positive84.7%
Neutral4.5%
Negative10.8%

Personal Interval Timer

All ratings14 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews13 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Simple Interval Timer

Reported bugs

3 issues
  • Timer stops working when screen is locked
  • Countdown beeps not syncing with timer
  • Interval times not accurately tracked

Requested features

4 requests
  • Ability to name and delete saved configurations
  • More granular interval time settings (e.g., 1-second increments)
  • Stronger haptic feedback on Apple Watch
  • Integration with workout tracking apps

Personal Interval Timer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Simple Interval Timer

One-time4
  • Espresso$0.99
  • Americano$1.99
  • Ad-free version$2.99
Show 1 more
  • Caramel Cappuccino$2.99
1 purchases

Personal Interval Timer

One-time1
  • Remove Ads$5.99

Questions

Is Simple Interval Timer free?
Simple Interval Timer is free to download, with in-app purchases available.
Is Personal Interval Timer free?
Personal Interval Timer is free to download, with in-app purchases available.
Which has better reviews, Simple Interval Timer or Personal Interval Timer?
Simple Interval Timer is rated higher. Simple Interval Timer averages 4.9 out of 5 from 5.4K ratings, while Personal Interval Timer averages 4.8 from 14 ratings.
Do Simple Interval Timer or Personal Interval Timer have ads?
Both Simple Interval Timer and Personal Interval Timer show ads.
Which is updated more often, Simple Interval Timer or Personal Interval Timer?
Simple Interval Timer ships an update every 8 months, and Personal Interval Timer every 4 weeks. Most recently, Simple Interval Timer was updated on September 22, 2026 and Personal Interval Timer on August 25, 2026.

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