Comparison

Warmup HIIT Interval Timer vs Sinira

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

Head to head
About

Warmup HIIT Interval Timer

This application provides a free, simple interval timer for HIIT workouts and a countdown timer. It also features a quick workout mode that generates daily exercise challenges.

Highlights
  • HIIT interval timer
  • Countdown timer
  • Quick workout feature
  • Daily exercise challenges
  • Simple and easy to use
Read full description

Bundled in this application is an interval timer for HIIT training and a countdown timer. It's free, simple and easy to use. Now includes a quick workout feature that selects from a range of exercises for you to complete as a challenge for the day.

About

Sinira

Read full description

Guide your breath, come to rest and find your balance. The Sinira breathing app provides a timer to help you with your breathing exercises. Select among preset exercises or add your own custom exercises. Enable the vibration setting to close your eyes while exercising. Information about breathing basics and exercise categories helps you to get started.

Screenshots

Warmup HIIT Interval Timer4 screens
Sinira4 screens

Verdict

The call

The clearest difference is in-app purchases: Sinira at none against Warmup HIIT Interval Timer's 3. Sinira also leads on ads (none vs shown). Warmup HIIT Interval Timer's advantage is update cadence (every 8 days vs every 16 months) and device support (3 vs 1). On price there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Warmup HIIT Interval Timer sells 3 one-off in-app purchases. Sinira asks for nothing beyond the download.

UpkeepUpdate frequency

Warmup HIIT Interval Timer ships an update every 8 days, Sinira every 16 months. The most recent releases landed on June 4, 2026 and September 13, 2026 respectively.

Scorecard5 real differences ยท 3 level
Warmup HIIT Interval Timer versus Sinira: the parameters behind the verdict, then further details
ParameterWarmup HIIT Interval TimerSinira
PriceFreeFree
Positive reviews100.0% of reviewsโ€”
Update frequencyEvery 8 days โ€” betterEvery 16 months
AdsYesNo โ€” better
In-app purchasesYesNo โ€” better
MonetizationFree with in-app purchasesโ€”
DevicesiPhone, iPad, iPod โ€” betteriPhone
Requires iOS15.0 โ€” better18.2
Further details โ€” not scored
Size6 MB6 MB
Age rating4+4+
DeveloperWhizbangKARIN PIETRUSKA

In-app purchases

3 purchases

Warmup HIIT Interval Timer

One-time3
  • Small Tip$0.99
  • Medium Tip$2.99
  • Large Tip$5.99
None

Sinira

No in-app purchases

Questions

Is Warmup HIIT Interval Timer free?
Warmup HIIT Interval Timer is free to download, with in-app purchases available.
Is Sinira free?
Sinira is free to download, with no in-app purchases.
Do Warmup HIIT Interval Timer or Sinira have ads?
Warmup HIIT Interval Timer shows ads; Sinira does not.
Which is updated more often, Warmup HIIT Interval Timer or Sinira?
Warmup HIIT Interval Timer ships an update every 8 days, and Sinira every 16 months. Most recently, Warmup HIIT Interval Timer was updated on June 4, 2026 and Sinira on September 13, 2026.

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