Comparison

OpenHIIT vs i.Timer

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

Head to head
About

OpenHIIT

This open-source interval timer app helps optimize various activities like workouts, work sprints, and study sessions. It offers customizable timing, precise controls, and clear auditory and visual alerts to keep you motivated and on track. Users can also join a collaborative community to contribute to its development.

Highlights
  • Customizable interval timing
  • Precise and user-friendly controls
  • Auditory and visual alerts
  • Open-source community collaboration
  • Ad-free experience
Features
Read full description

Enhance your daily routines with OpenHIIT, the versatile open-source interval timer app. Tailored for various activities, including but not limited to High-Intensity Interval Training (HIIT), OpenHIIT is a dynamic tool designed to optimize your tasks and foster a collaborative environment. OpenHIIT is free of ads and committed to providing an experience without in-app purchases or premium versions. Customizable Timing: Set intervals tailored to your preferences, whether it's for focused workouts, work sprints, or study sessions. Adapt OpenHIIT to your needs and make the most of your time. Precise Timing and User-Friendly Controls: Enjoy seamless sessions with accurate timing and intuitive controls. OpenHIIT ensures precision in intervals, allowing you to concentrate on your activities without disruptions. Stay in sync and maintain a steady pace throughout your tasks. Auditory and Visual Alerts: Stay informed and motivated with clear audio and visual alerts. OpenHIIT provides signals and indicators, keeping you aware of time changes without the need to glance at your device constantly. Keep your momentum going and stay on track. Open Source Collaboration: Join the collaborative spirit and become part of the OpenHIIT open-source community. Contribute to the app's development, suggest improvements, and share your ideas with users from various backgrounds. Together, we can shape the evolution of interval timers for diverse activities. Download OpenHIIT now to experience the flexibility and efficiency of an open-source interval timer. Take charge of your sessions, boost your productivity, and explore the full potential of OpenHIIT in various aspects of your daily life. Note: OpenHIIT is a project led by one individual with contributions from the community. Committed to quality and alignment with platform policies, OpenHIIT respects intellectual property rights.

About

i.Timer

This app provides a modern interval timer for various fitness activities like HIIT, Tabata, and workouts. It supports background music playback and offers customizable sounds for transitions. The app features a clean interface with light and dark modes, making training more engaging.

Highlights
  • Interval timer for HIIT, Tabata, EMOM
  • Background mode for music playback
  • Customizable interval sounds
  • Preconfigured timers
  • Light and dark modes
  • Last activity displayed on home screen
Features
Read full description

A modern interval timer for HIIT, EMOM, Tabata, boxing, circuit training, and fitness workouts. Create custom interval timers, start workouts in seconds, and track your progress over time. Designed to be simple, fast, and distraction-free. • Free to use • Train without limits – no trial period • Create unlimited custom timers • No account required • Works completely offline • Ready-to-use presets for HIIT, EMOM, Tabata and more • Detailed training statistics and activity history • Recent workouts on the home screen • Custom sounds for interval transitions • Background audio support during workouts • Clean interface with light and dark mode

Screenshots

OpenHIIT2 screens
i.Timer4 screens

Verdict

The call

The clearest difference is in-app purchases: OpenHIIT at none against i.Timer's 1. OpenHIIT also leads on ads (none vs shown) and rating (5.0 vs 4.7). i.Timer's advantage is update cadence (weekly vs monthly) and ratings volume (29 vs 8). On price 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. i.Timer sells 1 one-off in-app purchase. OpenHIIT asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

OpenHIIT holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 8 and 29 respectively. Written reviews point the same way: 100% of OpenHIIT's written reviews are positive against 91% of i.Timer's.

UpkeepUpdate frequency

OpenHIIT ships an update monthly, i.Timer weekly. The most recent releases landed on August 14, 2026 and September 21, 2026 respectively.

Scorecard8 real differences · 2 level
OpenHIIT versus i.Timer: the parameters behind the verdict, then further details
ParameterOpenHIITi.Timer
PriceFreeFree
Rating5.0 (8 ratings) — better4.7 (29 ratings)
Positive reviews100.0% of reviews — better91.3% of reviews
Number of ratings829 — better
Update frequencyMonthlyWeekly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better16.0
Further details — not scored
Size26 MB49 MB
Age rating4+9+
DeveloperAbigail MabeGregor Paw

Customer experience

OpenHIIT

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews8 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

i.Timer

All ratings29 ratings
Positive93.1%
Neutral0.0%
Negative6.9%
Written reviews23 reviews
Positive91.3%
Neutral0.0%
Negative8.7%

In-app purchases

None

OpenHIIT

No in-app purchases

1 purchases

i.Timer

One-time1
  • Premium features$6.99

Questions

Is OpenHIIT free?
OpenHIIT is free to download, with no in-app purchases.
Is i.Timer free?
i.Timer is free to download, with in-app purchases available.
Which has better reviews, OpenHIIT or i.Timer?
OpenHIIT is rated higher. OpenHIIT averages 5.0 out of 5 from 8 ratings, while i.Timer averages 4.7 from 29 ratings.
Do OpenHIIT or i.Timer have ads?
i.Timer shows ads; OpenHIIT does not.
Which is updated more often, OpenHIIT or i.Timer?
OpenHIIT ships an update monthly, and i.Timer weekly. Most recently, OpenHIIT was updated on August 14, 2026 and i.Timer on September 21, 2026.

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