Comparison

RunGap vs Surge HIIT

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

Head to head
About

RunGap

Consolidate your fitness data from over 40 popular services into one app. Access your complete training history, view detailed statistics, and manage your gear usage. Easily share, backup, and export your workouts for comprehensive control over your fitness journey.

Highlights
  • Connects 40+ fitness services
  • Consolidates training history
  • View statistics and charts
  • Track gear usage
  • Share, backup, and export workouts
  • Geotag photos and videos
Features
Read full description

The most well-connected Workout Data manager on the App Store with support for 50 of the most popular apps and services. Get your complete training history and take control of your workout data. Keep all your workout details from popular services including Apple Watch, Polar, Garmin, Coros, Peloton, Strava, Runtastic, Suunto, adidas, SportsTracker, Apple Health, Zwift, Rouvy and many others on your iPhone or iPad for instant access anytime. Easily share, backup and export your workouts as you like (requires "Swag Bag" subscription available as in-app purchase). Unattended background operation. RunGap can both read and write workouts from and to Health including route maps, heart rate and distance. View statistics and interactive charts, maps and details for individual workouts. Browse your favorite tracks and compare past results. Easily track your shoe, bike and other gear usage. Geotag photos and videos related to an activity. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ PLEASE NOTE: If you have any issues, consider contacting support instead of giving a negative rating - most times your issues can be solved or answered. A rating will not get your app back to work, but the support can help - simply use the integrated "Online Support" function.

About

Surge HIIT

Features
Read full description

HIIT shouldn't start with a fight against a confusing timer. Surge HIIT does the hard part for you: pick a workout, hit start, and move. Your phone — and your Apple Watch — call every interval so you never have to look down mid-burpee. Built for people who want to sweat, not fiddle. — WORKOUTS THAT ARE READY WHEN YOU ARE — Eight studio-quality HIIT workouts, beginner to advanced. No setup, no guesswork. Warm-up, work, rest, cooldown — all timed, all coached, all yours from the first tap. — BUILD YOUR OWN, EXACTLY YOUR WAY — Drag-and-drop the perfect routine in our custom builder. Set work and rest to the second, name your exercises, pick your colors. Tabata, EMOM, circuits, ladders — if you can imagine it, you can build it. Frankly, the builder is tremendous. — YOUR APPLE WATCH BECOMES A COACH — This is where Surge pulls ahead. Real-time heart rate. Active calories. Haptic taps on every interval change so you feel the switch without breaking stride. Your custom workouts sync straight to your wrist, and your Activity rings close automatically. Leave the phone on the bench. — SPOKEN CUES, EYES UP — Surge announces each interval out loud in a natural voice and ducks your music so you hear it. No squinting at a screen between rounds. — NINE THEMES WITH REAL CHARACTER — From cool Glacier blues to molten Ember, electric Voltage, and a neon Tron-inspired grid. Make the app yours. — 100% OFFLINE. ZERO ADS. ZERO NONSENSE — No internet required. No accounts. No ads interrupting your set. Ever. Just you and the work. — APPLE HEALTH — Every session saves to Apple Health — workouts, active calories and heart rate — so your progress lives where the rest of your fitness data does. — START FREE — Two built-in workouts and two custom workouts are free forever. Want it all? Start a 14-day free trial — no credit card, no commitment. Keep the free workouts as long as you like. Surge Premium unlocks: • All 8 HIIT workouts • Unlimited custom workouts and exercises • Every color theme • The full Apple Watch experience It's a HIIT timer that respects your time. Believe me — your next workout starts the second you open it. Download Surge HIIT and go. ——— Subscription details: A yearly subscription is available after the free trial, or buy Lifetime once and own it forever. Payment is charged to your Apple ID. The yearly subscription auto-renews unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Privacy Policy: https://ibkoch247.de/en/datenschutz/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

RunGap4 screens
Surge HIIT4 screens

Verdict

The call

The clearest difference is update cadence: Surge HIIT at every 5 days against RunGap's every 2 weeks. RunGap's advantage is iOS requirement (15.6 vs 17.6). 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. RunGap sells 4 in-app purchases, starting at $4.99 per 3 months and Surge HIIT sells 3 in-app purchases, starting at $29.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

RunGap ships an update every 2 weeks, Surge HIIT every 5 days. The most recent releases landed on October 20, 2026 and October 12, 2026 respectively.

Scorecard2 real differences · 8 level
RunGap versus Surge HIIT: the parameters behind the verdict, then further details
ParameterRunGapSurge HIIT
PriceFreeFree
Rating4.8 (5.9K ratings) — better—
Positive reviews77.2% of reviews—
Number of ratings5.9K — better—
Update frequencyEvery 2 weeksEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, Apple Watch
Requires iOS15.6 — better17.6
Further details — not scored
Size14 MB7 MB
Age rating12+4+
DeveloperCTRL-NRalf Koch

Bugs and requests

RunGap

Reported bugs

3 issues
  • App crashes or freezes
  • Syncing issues with certain platforms
  • Incorrect data transfer or formatting

Requested features

4 requests
  • Improved user interface and navigation
  • Automatic background syncing
  • Integration with more fitness platforms
  • Offline data access and editing

Surge HIIT

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

RunGap

Subscriptions2
  • Quarterly Swag Bag$4.993 Months
  • Annual Swag Bag$14.991 Year
One-time2
  • Swag Bag (3 months)$4.99
  • Swag Bag (one year)$14.99
3 purchases

Surge HIIT

Subscriptions1
  • Surge Hiit Premium - Yearly$29.991 Year
One-time2
  • Surge Hiit Premium - 14-day TrialFree
  • Surge Hiit Premium - Lifetime$79.99

Questions

Is RunGap free?
RunGap is free to download, with in-app purchases available.
Is Surge HIIT free?
Surge HIIT is free to download, with in-app purchases available.
Do RunGap or Surge HIIT have ads?
Neither RunGap nor Surge HIIT shows ads.
Which is updated more often, RunGap or Surge HIIT?
RunGap ships an update every 2 weeks, and Surge HIIT every 5 days. Most recently, RunGap was updated on October 20, 2026 and Surge HIIT on October 12, 2026.

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