Comparison

Personal Interval Timer vs Lapz

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

Head to head
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

About

Lapz

This app provides an intuitive and straightforward interval timer designed to enhance cardiovascular endurance training. It offers easy setup, reusable timers, and essential features for various sports and activities. An optional Pro version allows for advanced customization and sharing.

Highlights
  • Easy workout setup
  • Reusable saved timers
  • Essential training features
  • Dark mode support
  • Customizable interval workouts (Pro)
  • Shareable workout routines (Pro)
Features
Read full description

Take your training to the next level with Lapz. Interval training is one of the most effective ways to train your cardiovascular endurance. This intuitive and easy-to-use interval timer gets you started within seconds. Instead of distracting you, Lapz fits seamlessly into your workout. It’s simple, fast and straightforward. Following features await you: * Easy Setup: Start your workout right away by adding a new timer to your list. Just configure the sliders to fit your personal training style. * Reusable Timers: Every timer you create will be saved automatically. This way you can reuse timers you’ve already set up. * Only Essential: Lapz provides you with the essentials you need to get the most out of your workout. * Dark Mode: Go hard. Go dark. Experience the charming benefits of Dark Mode during your late night workout sessions. And in case you want to personalize your workouts even further, consider purchasing Lapz Pro. Lapz Pro lets you fully customize your workouts and share it with your friends: * Add Intervals: Create and append single intervals to your workout. * Customize Activities: Quickly adjust title and duration for each interval. * Rearrange Intervals: Change and organize the sequence of your workout. * Share Workouts: Share your beloved workouts with your friends and colleagues. Lapz can be used for any kind of sport that requires periodization such as running, cycling, yoga, cross-fit, MMA, meditation, sprinting, weight-lifting, endurance training, stretching, calisthenics and street workout. 
You may even apply it to equikinetic, horse training, rehabilitation and muay thai. There are no limits! Don't count the laps. Make the laps count. With Lapz! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Data policy: https://sites.google.com/view/lapz-privacy-policy/policy

Screenshots

Personal Interval Timer4 screens
Lapz4 screens

Verdict

The call

The clearest difference is ads: Lapz at none against Personal Interval Timer's shown. Lapz also leads on rating (5.0 vs 4.8). Personal Interval Timer's advantage is ratings volume (14 vs 1) and iOS requirement (14.2 vs 16.6). On price, review sentiment, update cadence 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. Personal Interval Timer sells 1 one-off in-app purchase and Lapz sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Lapz holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Personal Interval Timer has 14 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Personal Interval Timer ships an update every 4 weeks, Lapz every 2 weeks. The most recent releases landed on September 23, 2026 and October 4, 2026 respectively.

Scorecard4 real differences · 6 level
Personal Interval Timer versus Lapz: the parameters behind the verdict, then further details
ParameterPersonal Interval TimerLapz
PriceFreeFree
Rating4.8 (14 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings14 — better1
Update frequencyEvery 4 weeksEvery 2 weeks — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.2 — better16.6
Further details — not scored
Size7 MB7 MB
Age rating4+4+
DeveloperAlexApps.Net CoMaximilian Trauboth

Customer experience

Personal Interval Timer

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

Lapz

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Personal Interval Timer

One-time1
  • Remove Ads$5.99
3 purchases

Lapz

Subscriptions2
  • Lapz Pro Monthly14 Days trial$0.991 Month
  • Lapz Pro Yearly14 Days trial$9.991 Year
One-time1
  • Lapz Pro$2.99

Questions

Is Personal Interval Timer free?
Personal Interval Timer is free to download, with in-app purchases available.
Is Lapz free?
Lapz is free to download, with in-app purchases available.
Which has better reviews, Personal Interval Timer or Lapz?
Lapz is rated higher. Personal Interval Timer averages 4.8 out of 5 from 14 ratings, while Lapz averages 5.0 from 1 ratings.
Do Personal Interval Timer or Lapz have ads?
Personal Interval Timer shows ads; Lapz does not.
Which is updated more often, Personal Interval Timer or Lapz?
Personal Interval Timer ships an update every 4 weeks, and Lapz every 2 weeks. Most recently, Personal Interval Timer was updated on September 23, 2026 and Lapz on October 4, 2026.

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