Comparison

SimpleTimerOk vs OpenHIIT

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

Head to head
About

SimpleTimerOk

Features
Read full description

SimpleTimerOk is a straightforward and easy-to-use mobile application designed to help individuals with their workout training sessions. With this app, users can set an interval timer according to their specific training needs. SimpleTimerOk provides users with a clear and concise interface that allows them to easily set and adjust their timers. Whether you're doing cardio, weight lifting, or any other type of workout, SimpleTimerOk can help you keep track of your intervals, making it easier to achieve your fitness goals

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.

Screenshots

SimpleTimerOk4 screens
OpenHIIT2 screens

Verdict

The call

SimpleTimerOk and OpenHIIT are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

SimpleTimerOk ships an update every 3 weeks, OpenHIIT monthly. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

ScorecardNo meaningful differences
SimpleTimerOk versus OpenHIIT: the parameters behind the verdict, then further details
ParameterSimpleTimerOkOpenHIIT
PriceFreeFree
Rating—5.0 (8 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—8 — better
Update frequencyEvery 3 weeks — betterMonthly
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size30 MB26 MB
Age rating4+4+
DeveloperSergei KlishinAbigail Mabe

In-app purchases

None

SimpleTimerOk

No in-app purchases

None

OpenHIIT

No in-app purchases

Questions

Is SimpleTimerOk free?
SimpleTimerOk is free to download, with no in-app purchases.
Is OpenHIIT free?
OpenHIIT is free to download, with no in-app purchases.
Do SimpleTimerOk or OpenHIIT have ads?
Neither SimpleTimerOk nor OpenHIIT shows ads.
Which is updated more often, SimpleTimerOk or OpenHIIT?
SimpleTimerOk ships an update every 3 weeks, and OpenHIIT monthly. Most recently, SimpleTimerOk was updated on October 6, 2026 and OpenHIIT on October 7, 2026.

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