Comparison

Interval Timer □ HIIT Timer vs Mariabs · Interval Timer

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

Head to head
About

Interval Timer □ HIIT Timer

Create custom workout timers with adjustable intervals for exercise and rest. Track your progress with detailed history and statistics, and repeat past workouts easily. Enjoy audio cues without interrupting your music.

Highlights
  • Customizable intervals
  • Workout and rest timers
  • Voice or beep guides
  • Background audio support
  • Workout history and statistics
  • Repeat previous workouts
Features
Read full description

A simple and beautiful interval timer. 1. Drag to set your custom intervals for workout, rest, rounds, etc 2. Tap to start. Interval Timer doesn't interfere with your music or other apps: ∙ Listen to your music apps while you workout. ∙ Voice or beep guides for every workout. ∙ You can leave the app and still listen to the audio guides, in order to follow a workout you found online. And no need to manually record your workouts: ∙ Detailed history and statistics pages to track your progress. ∙ Repeat a previous workout from your history, so you don't need to set it again. If you have any ideas for how to improve the app, just tap "Contact Support' inside the app and let us know! We are always trying to improve Interval Timer This app includes an optional auto-renewable subscription (Premium Pass): Premium Pass beings with a free trial period, then an auto-renewable monthly subscription when trial ends. Payment will be charged to your Apple account at confirmation of purchase and will automatically renew (at the duration/price selected) unless auto-renew is turned off at least 24 hrs before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your Apple Account Settings after purchase. Any unused portion of the free initial period will be forfeited when you purchase a subscription. Privacy Policy: https://float.support/interval-timer/privacy Terms of Use: https://float.support/interval-timer/terms

About

Mariabs · Interval Timer

This app provides a customizable interval timer for various training styles like HIIT and Tabata. It offers voice cues, haptic feedback, and a clear display to keep users focused on their workouts. A new run mode with GPS tracking is also available.

Highlights
  • Customizable interval parameters
  • Voice cues for transitions
  • Musical chimes and haptic feedback
  • GPS tracking for runs
  • Run/walk interval support
  • Glanceable monochrome display
  • Workout settings remembered
Features
Read full description

Mariabs is a sharp, minimal interval timer for anyone who trains in rounds — tabata, HIIT, EMOM, circuits, or your own custom intervals. Set your prepare, work, rest, cycles, blocks, and block-rest durations in seconds. Press the white play button. Mariabs counts you in, calls out each phase, and chimes the final 3-2-1 of every interval so you can keep your eyes on what you're doing instead of on the screen. WHAT YOU GET • Six adjustable parameters: prepare, work, rest, cycles per block, number of blocks, and rest between blocks • Voice cues for every transition: "Prepare", "Work", "Rest", and "Block complete — get ready for the next" • Distinct musical chimes per phase, generated on-device, synced with light haptics • 3-2-1 countdown ticks before each phase change • Big, monochrome timer dial with a subtle progress ring tinted to the current phase • Cycle and block progress shown at all times so you always know where you are • Plays over whatever you're already listening to — music, podcasts, anything — and lowers it only for the moment Mariabs speaks • Stays awake automatically while a workout is running • Settings remembered between launches NEW IN 2.0: RUN MODE Switch from TIMER to RUN and Mariabs measures your run with GPS. • Just run: distance, pace, time and your route on a map, with an optional time goal and/or distance goal • Run / walk: run and walk intervals on top of the run (default run 4:00, walk 1:00 × 6), spoken over your music • Your split for every kilometre (or mile) is called out with its pace • Lock Screen and Dynamic Island show the countdown, distance and pace • Save or discard each run. Saved runs stay on your iPhone, with map and splits, and can be exported as GPX • No account, nothing uploaded. Runs are not written to Apple Health DESIGNED TO STAY OUT OF THE WAY The screen is dark, glanceable from across a gym, and built around one button. There are no menus, no levels, no streaks, no badges, no analytics. You configure once, then press play. PRIVACY Mariabs collects nothing. No account. No email. No analytics. No tracking. Your settings, runs and routes stay on your device. Location is used only during a run. The privacy policy is one page; you can read it before you tap install. NO ADS Mariabs has no ads, no in-app purchases, and no premium tier. No account required.

Screenshots

Interval Timer □ HIIT Timer4 screens
Mariabs · Interval Timer4 screens

Verdict

The call

The clearest difference is in-app purchases: Mariabs · Interval Timer at none against Interval Timer □ HIIT Timer's 5. Mariabs · Interval Timer also leads on update cadence (every 6 days vs every 5 weeks). Interval Timer □ HIIT Timer's advantage is ratings volume (87K vs 1). On price, rating, ads and device support 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. Interval Timer □ HIIT Timer sells 5 in-app purchases, starting at $1.99 per month. Mariabs · Interval Timer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Mariabs · Interval Timer holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Interval Timer □ HIIT Timer has 87K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Interval Timer □ HIIT Timer ships an update every 5 weeks, Mariabs · Interval Timer every 6 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
Interval Timer □ HIIT Timer versus Mariabs · Interval Timer: the parameters behind the verdict, then further details
ParameterInterval Timer □ HIIT TimerMariabs · Interval Timer
PriceFreeFree
Rating4.8 (87K ratings)5.0 (1 ratings) — better
Positive reviews60.7% of reviews—
Number of ratings87K — better1
Update frequencyEvery 5 weeksEvery 6 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS15.6 — better16.2
Further details — not scored
Size34 MB5 MB
Age rating4+4+
DeveloperFloat Tech, LLCPER MAGNE HELSETH

Bugs and requests

Interval Timer □ HIIT Timer

Reported bugs

3 issues
  • Timer not always accurate
  • Favorites/saved workouts feature not working
  • Inconsistent behavior when pausing/resuming

Requested features

3 requests
  • Ability to save and name custom workouts
  • More flexibility in exercise/rest time settings
  • Option to adjust volume of voice prompts

Mariabs · Interval Timer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

Interval Timer □ HIIT Timer

Subscriptions2
  • Premium Pass7 Days trial$1.991 Month
  • Premium Pass7 Days trial$2.991 Month
One-time3
  • Lifetime Pass$14.99
  • Lifetime Pass$19.99
  • Premium Forever Promo$29.99
None

Mariabs · Interval Timer

No in-app purchases

Questions

Is Interval Timer □ HIIT Timer free?
Interval Timer □ HIIT Timer is free to download, with in-app purchases available.
Is Mariabs · Interval Timer free?
Mariabs · Interval Timer is free to download, with no in-app purchases.
Which has better reviews, Interval Timer □ HIIT Timer or Mariabs · Interval Timer?
Mariabs · Interval Timer is rated higher. Interval Timer □ HIIT Timer averages 4.8 out of 5 from 87K ratings, while Mariabs · Interval Timer averages 5.0 from 1 ratings.
Do Interval Timer □ HIIT Timer or Mariabs · Interval Timer have ads?
Neither Interval Timer □ HIIT Timer nor Mariabs · Interval Timer shows ads.
Which is updated more often, Interval Timer □ HIIT Timer or Mariabs · Interval Timer?
Interval Timer □ HIIT Timer ships an update every 5 weeks, and Mariabs · Interval Timer every 6 days. Most recently, Interval Timer □ HIIT Timer was updated on November 4, 2026 and Mariabs · Interval Timer on October 31, 2026.

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