Comparison

Interval Timer □ HIIT Timer vs HundredFitness

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

Easily set up custom workout intervals with a simple drag-and-tap interface. This app provides audio cues and detailed history to track your fitness progress, even while listening to music.

Highlights
  • Customizable intervals
  • Drag-and-tap interface
  • Voice and beep guides
  • Background audio support
  • Detailed workout history
  • 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 work out. ∙ 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 offers an optional auto-renewable subscription, Premium Pass (monthly), and a one-time Lifetime Pass. Premium Pass starts with a 1-week free trial for eligible new subscribers, then renews automatically every month at the price shown in the app until you cancel. Payment is charged to your Apple Account when you confirm the purchase or, with a free trial, when the trial ends. The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period, and your account is charged for the renewal within 24 hours before the end of the current period. You can manage the subscription and turn off auto-renewal at any time in your Apple Account settings. Cancelling stops the next renewal, and Premium stays active until the end of the period you've paid for. Any unused part of a free trial ends when you buy a subscription. Privacy Policy: https://float.support/interval-timer/privacy Terms of Use: https://float.support/interval-timer/terms

About

HundredFitness

Features
Read full description

HundredFitness is the simplest way to stay consistent with fitness. No programs, no planning, no pricey gym memberships, no weights—just daily reps you can do anywhere. Push-ups. Squats. Light day. Repeat. Meet yourself where you're at: • Daily rotating focus, no weights required (Push-ups / Squats / Light day) • Track reps and build streaks • Earn badges over time • Designed for real life—at home, at work, anywhere Hundred, your no-pressure fitness companion, gives you simple nudges to keep you moving. Start small. Stay consistent. Every rep counts. ——— Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Interval Timer □ HIIT Timer4 screens
HundredFitness4 screens

Verdict

The call

The clearest difference is in-app purchases: HundredFitness at none against Interval Timer □ HIIT Timer's 5. Interval Timer □ HIIT Timer's advantage is iOS requirement (15.6 vs 17.6). On price, update cadence, 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. HundredFitness asks for nothing beyond the download.

UpkeepUpdate frequency

Interval Timer □ HIIT Timer ships an update every 5 weeks, HundredFitness every 3 weeks. The most recent releases landed on November 12, 2026 and November 9, 2026 respectively.

Scorecard2 real differences · 8 level
Interval Timer □ HIIT Timer versus HundredFitness: the parameters behind the verdict, then further details
ParameterInterval Timer □ HIIT TimerHundredFitness
PriceFreeFree
Rating4.8 (88K ratings) — better—
Positive reviews60.7% of reviews—
Number of ratings88K — better—
Update frequencyEvery 5 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better17.6
Further details — not scored
Size21 MB4 MB
Age rating4+4+
DeveloperFloat Tech, LLCDevan Tchir

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

HundredFitness

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

HundredFitness

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 HundredFitness free?
HundredFitness is free to download, with no in-app purchases.
Do Interval Timer □ HIIT Timer or HundredFitness have ads?
Neither Interval Timer □ HIIT Timer nor HundredFitness shows ads.
Which is updated more often, Interval Timer □ HIIT Timer or HundredFitness?
Interval Timer □ HIIT Timer ships an update every 5 weeks, and HundredFitness every 3 weeks. Most recently, Interval Timer □ HIIT Timer was updated on November 12, 2026 and HundredFitness on November 9, 2026.

Other comparisons