Comparison

RUN interval vs GainCut

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

Head to head
About

RUN interval

This app simplifies interval and Fartlek running by allowing you to set custom targets for time or distance during hard, easy, and rest efforts. It offers detailed post-run summaries, audio and visual feedback, and an Apple Watch app for enhanced training.

Highlights
  • Customizable interval sessions
  • Time and distance targets
  • Distance Goal option
  • Audio and visual feedback
  • Detailed run summaries
  • Apple Watch app
  • Strava sharing
Features
Read full description

Easily set up and record your Interval and Fartlek running sessions. With the flexibility of using time and/or distance as interval targets for your "Hard", "Easy" and "Rest" efforts. The simple but highly configurable interface on your phone and watch will have you running sooner. Now with a Distance Goal option for your session. Along with great audio and visual feedback, detailed post-run summary, share your runs to Strava, and a full-featured Apple Watch app. You can also record your regular runs with voice-over calling out distance and pace feedback. Key Features: • Easily create flexible custom interval sessions. • Utilize three effort targets "Hard", "Easy" and "Rest" in each set, targeting time or distance (meters or miles). • You can "Skip" any of the three efforts to create flexible sets, like building a progressive intervals session. • NEW: Set a Distance Goal for your session, that repeats the sets from the start until the distance has been reached. • Set a Warm-Up and Warm-Down timer or distance around your session. • Clear and easily glanceable visuals and audio prompts, including vibrations. • Voice-over prompts to save you from looking at the screen, great for iPhone or headphone users. • Voice-over prompts include the upcoming intervals effort and time/distance amount, and your last intervals average pace and heart rate. • Full-featured Apple Watch App! • Heart Rate Zones! (see description below) • Indoor Mode, no GPS, for treadmill running. • Sound Mode, for normal, discrete or silent audio prompts on your watch. • Vibration feedback on both the phone and watch. • Detailed run summary, showing pace for hard and easy efforts. • The run summary also includes interval breakdown, distance breakdown and heart rate details. • Play music or podcasts while running and still hear the audio prompts. • Sharing. Share a summary photo with your friends. • Private data. We don’t send any of your data to a server or share it with anyone. Session Types: • Normal Run – Record a normal run, long or short. • Record Intervals – If you run with a group or do an undefined session, then use the Record Interval option. It allows you to manually change between "Hard" and "Easy" reps, allowing you to record your session. • Custom Intervals – Our fully flexible intervals that allow you to use time and/or distance for the efforts. Add multiple intervals sets together to create the session you want. Sharing: From the summary screen, you can share your runs with friends or across social media. If you want to share directly with friends or across other social media, you can share a summary image with the details of your run. Heart Rate Zones: (Apple Watch Only) Zones are displayed as grouped percentages of your maximum heart rate. Giving you an indication of your current work rate based on your current heart rate. Just enter your maximum workout heart rate into our Settings screen and they will display on your Watch the next time you run. Zone 1: Very Light Effort 50-60% (Gray) Zone 2: Light Effort 60-70% (Blue) Zone 3: Moderate Effort 70-80% (Green) Zone 4: Hard Effort 80-90% (Yellow) Zone 5: Maximum Effort 90-100% (Red) Privacy: We don’t want to know where you have run, that's for you to worry about. We don’t send any of your data to a server or share it with anyone you don't want too. We keep your running records safe in Apple Health so you have control. Apple Heath gives you the control over who accesses your data. We only write and read the data we record from your running. Feedback: And because we don't send any data to a server, we need you to send us feedback and suggestions. Hit the Support link below or visit our website to contact us.

About

GainCut

Features
Read full description

You spend 6 hours a week under a barbell. You track every set, every rep, every progressive overload. But when it comes to food, you're estimating. And that's why you're stuck. That isn't a discipline problem. You have plenty of discipline. It's a measurement problem — the gym half of your training is logged to the gram, and the kitchen half is a guess. GainCut closes that gap. PHOTO-FIRST MACRO TRACKING Point your camera at your plate. GainCut identifies the food, works out the portion, and logs the macros. No food database to scroll, no barcode to hunt, no entering every ingredient by hand. Trained on real portions — including HK and Chinese staples like char siu, rice, noodles and dim sum — because those are the meals that actually break generic trackers. RECOVERY, NOT JUST CALORIES Training load is only half the picture. GainCut reads your heart-rate variability, resting heart rate, and sleep from Apple Health, then turns them into a plain-language readiness score. You get told what the number means for today's session — push, maintain, or back off. No dashboard to interpret, no guessing whether you're recovered or just motivated. THE SEVEN DAYS THAT COUNT One good day proves nothing, and neither does one bad one. Your macros move your body over a week, not in 24 hours — so GainCut scores you on a rolling seven-day window. It also separates the two things most apps blur together: • Where your body is actually heading — measured against your real, measured burn, not a formula. • How closely you hit your own target, day to day. Those can point in opposite directions, and both can be true at once. A week that looks flat on the scale can still be the week you nailed your plan. GainCut shows you which one you're in — including on maintenance, where the goal is to stay, not to cut. BUILT FOR PEOPLE WHO TRAIN • Set your own surplus or deficit — 0 to 1,000 kcal, not a fixed default. • HealthKit-synced weight and body-fat trends, so progress is measured, not felt. • A food database tuned for real, cooked, restaurant and home-cooked meals. • Fast manual logging for the days you already know what you ate. If you're exact in the gym and approximate in the kitchen, that gap is the whole problem. GainCut is the other half of your training log. Track what you lift. Track what you eat. Stay in the green.

Screenshots

RUN interval4 screens
GainCut4 screens

Verdict

The call

The clearest difference is update cadence: GainCut at every 10 days against RUN interval's every 3 months. RUN interval's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 17.0). On price, ads and in-app purchases 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. RUN interval sells 2 one-off in-app purchases and GainCut sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

RUN interval ships an update every 3 months, GainCut every 10 days. The most recent releases landed on October 27, 2026 and October 16, 2026 respectively.

Scorecard3 real differences · 7 level
RUN interval versus GainCut: the parameters behind the verdict, then further details
ParameterRUN intervalGainCut
PriceFreeFree
Rating4.7 (1K ratings) — better—
Positive reviews77.1% of reviews—
Number of ratings1K — better—
Update frequencyEvery 3 monthsEvery 10 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPod, Apple Watch — betteriPhone
Requires iOS15.6 — better17.0
Further details — not scored
Size34 MB5 MB
Age rating4+4+
DeveloperCAN YOU HEAR ME SOFTWAREWing Kin Vincent YEUNG

In-app purchases

2 purchases

RUN interval

One-time2
  • The full RUN interval$1.99
  • The full RUN interval$3.99
2 purchases

GainCut

Subscriptions2
  • GainCut Pro Monthly$1.991 Month
  • GainCut Pro Yearly$14.991 Year

Questions

Is RUN interval free?
RUN interval is free to download, with in-app purchases available.
Is GainCut free?
GainCut is free to download, with in-app purchases available.
Do RUN interval or GainCut have ads?
Neither RUN interval nor GainCut shows ads.
Which is updated more often, RUN interval or GainCut?
RUN interval ships an update every 3 months, and GainCut every 10 days. Most recently, RUN interval was updated on October 27, 2026 and GainCut on October 16, 2026.

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