Comparison

Sprint Eight vs HIIT

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

Head to head
About

Sprint Eight

This app guides you through a high-intensity interval training workout designed for maximum calorie burn in minimal time. It provides timed intervals for sprinting and resting, allowing you to perform the exercise without specialized equipment.

Highlights
  • High Intensity Interval Training (HIIT)
  • Maximum calorie burn
  • No extra equipment needed
  • Timed sprint and rest intervals
  • 30-second sprint / 90-second rest cycle
Features
Read full description

Working out is never fun so you need to get the most out of your workout when you can do it. Sprint-8 is a form of High Intensity Interval Training (HIIT) that allows maximum calorie burn in the shortest timeframe. Usually, this particular workout is done on a treadmill or stationary bicycle. This app lets you do the Sprint-8 workout and not have to have any extra equipment. It tells you when to sprint and then when to rest. Sprint-8 does this on a 30 second sprint/90 second rest cycle.

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/

Screenshots

Sprint Eight2 screens
HIIT4 screens

Verdict

The call

The clearest difference is in-app purchases: Sprint Eight at none against HIIT's 8. Sprint Eight also leads on iOS requirement (10.3 vs 17.0). HIIT's advantage is update cadence (every 2 weeks vs every 6 weeks) and ratings volume (34 vs 10). On price, rating, review sentiment and ads 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. Sprint Eight asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.3 for Sprint Eight against 4.3 for HIIT. Both are backed by a comparable volume of ratings — 10 and 34 respectively. Written reviews are what separate them: 60% of Sprint Eight's written reviews are positive against 57% of HIIT's.

UpkeepUpdate frequency

Sprint Eight ships an update every 6 weeks, HIIT every 2 weeks. The most recent releases landed on September 16, 2026 and October 6, 2026 respectively.

Scorecard5 real differences · 5 level
Sprint Eight versus HIIT: the parameters behind the verdict, then further details
ParameterSprint EightHIIT
PriceFreeFree
Rating4.3 (10 ratings)4.3 (34 ratings)
Positive reviews60.0% of reviews — better57.1% of reviews
Number of ratings1034 — better
Update frequencyEvery 6 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, Apple Watch
Requires iOS10.3 — better17.0
Further details — not scored
Size21 MB83 MB
Age rating4+4+
DeveloperBrad McAnalleyMaxim Kazakov

Customer experience

Sprint Eight

All ratings10 ratings
Positive80.0%
Neutral10.0%
Negative10.0%
Written reviews5 reviews
Positive60.0%
Neutral20.0%
Negative20.0%

HIIT

All ratings34 ratings
Positive82.4%
Neutral2.9%
Negative14.7%
Written reviews7 reviews
Positive57.1%
Neutral14.3%
Negative28.6%

In-app purchases

None

Sprint Eight

No 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

Questions

Is Sprint Eight free?
Sprint Eight is free to download, with no in-app purchases.
Is HIIT free?
HIIT is free to download, with in-app purchases available.
Which has better reviews, Sprint Eight or HIIT?
Sprint Eight and HIIT are both rated 4.3 out of 5 on the App Store, from 10 and 34 ratings respectively.
Do Sprint Eight or HIIT have ads?
Neither Sprint Eight nor HIIT shows ads.
Which is updated more often, Sprint Eight or HIIT?
Sprint Eight ships an update every 6 weeks, and HIIT every 2 weeks. Most recently, Sprint Eight was updated on September 16, 2026 and HIIT on October 6, 2026.

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