Comparison

HIIT vs Croton

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

Head to head
About

HIIT

Design and track custom interval running workouts with real-time data and audio cues. This app offers detailed post-run analysis and integrates with Apple Health and Apple Watch for phone-free training.

Highlights
  • Customizable intervals (time, distance, open)
  • Support for HIIT, tempo, fartlek, pyramid, progression workouts
  • Real-time tracking of pace, cadence, heart rate
  • Audio cues for guidance
  • Phone-free Apple Watch operation
  • Post-run analysis and GPX export
  • Apple Health integration
Features
Read full description

Tired of tapping through menus before a run? Interval Running is a simple HIIT, tabata, and interval timer - say what you want, it builds the intervals, you run. Just tell it what you want. Say something like "eight rounds, 30 seconds fast, 30 seconds easy" and the timer builds your program right then - no forms, no menus, no fields to fill in before you can start running. Prefer to build it yourself? You can: - Set work and rest by time, distance, or leave it open - Choose HIIT, tabata, fartlek, tempo, or plain run/walk intervals - Save a routine once, reuse it whenever you want Everything you need is on the screen while you run, no extra taps. - Interval, pace, cadence, and heart rate at a glance - Audio cues tell you when to switch, no need to look down - Full Apple Watch support - leave your phone at home You don't want a training plan, a coach, or a program - you want a timer that starts and stops intervals exactly when you tell it to. You want to set up a workout on the way to the track without stopping to tap through screens. You do tabata or HIIT sessions and just need something that counts rounds. You run intervals on your own terms and don't want an app deciding your pace for you. After each run, see your intervals, pace, and heart rate. Export GPX files, sync with Apple Health, and connect an external heart rate monitor if you use one. Health app integration With your permission, your interval runs count toward Activity Rings, including the Exercise and Move rings. Say it. Start it. Run. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Croton

Features
Read full description

Stop guessing. Start progressing. Progressive overload is the only way to get stronger — Milo of Croton proved it 2,500 years ago carrying a calf until it became a bull. The principle hasn't changed. But your app should give you more than one way to do it. Croton gives you 4 different progression strategies — not just one. Whether you're adding weight every session, every week, or using double progression for hypertrophy, Croton adapts to how YOU want to train. FEATURES - 4 Progression Strategies — Linear, double progression, AMRAP-based, or manual - Automatic weight increases — Set your rules, we handle the math - Smart deload logic — Automatic deloads when you stall - Workout builder — Create any workout with 100+ exercises - Session tracking — Log sets with one tap - Plate calculator — Know exactly which plates to load - Rest timer — Customizable between sets BUILT FOR LIFTERS BEYOND LINEAR PROGRESSION Loved StrongLifts but hit a wall? Dealing with an injury or joint issues? Your body doesn't progress in a straight line — your app shouldn't force you to. Croton lets you choose how you progress, not the other way around. Privacy Policy: https://jerfan1.github.io/croton/privacy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

HIIT4 screens
Croton4 screens

Verdict

The call

The clearest difference is update cadence: Croton at every 4 days against HIIT's every 2 weeks. Croton also leads on iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases 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. HIIT sells 8 in-app purchases, starting at $0.99 per month and Croton sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

HIIT ships an update every 2 weeks, Croton every 4 days. The most recent releases landed on October 6, 2026 and September 30, 2026 respectively.

Scorecard2 real differences · 8 level
HIIT versus Croton: the parameters behind the verdict, then further details
ParameterHIITCroton
PriceFreeFree
Rating4.3 (34 ratings) — better—
Positive reviews57.1% of reviews—
Number of ratings34 — better—
Update frequencyEvery 2 weeksEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, Apple WatchiPhone, iPod
Requires iOS17.015.1 — better
Further details — not scored
Size83 MB36 MB
Age rating4+4+
DeveloperMaxim KazakovJahangir Erfan

In-app purchases

8 purchases

HIIT

Subscriptions7
  • Premium Monthly Day 2$0.991 Month
  • Premium Weekly7 Days trial$3.997 Days
  • Premium Monthly Day 1$4.991 Month
Show 4 more
  • Premium Monthly7 Days trial$9.991 Month
  • Premium 3 Months$19.993 Months
  • Premium Annual Special Offer7 Days trial$29.991 Year
  • Interval Run Premium Yearly7 Days trial$59.991 Year
One-time1
  • Intreval Run Premium Lifetime$39.99
3 purchases

Croton

Subscriptions2
  • Pro Monthly7 Days trial$9.991 Month
  • Pro Yearly7 Days trial$49.991 Year
One-time1
  • Pro Lifetime$69.99

Questions

Is HIIT free?
HIIT is free to download, with in-app purchases available.
Is Croton free?
Croton is free to download, with in-app purchases available.
Do HIIT or Croton have ads?
Neither HIIT nor Croton shows ads.
Which is updated more often, HIIT or Croton?
HIIT ships an update every 2 weeks, and Croton every 4 days. Most recently, HIIT was updated on October 6, 2026 and Croton on September 30, 2026.

Other comparisons