Comparison

RunGap vs Cudex

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

Cudex

Features
Read full description

There's a monster in here. Your steps collect more. Cudex turns your daily walking into a collection of monsters. Walk with your phone. Collect your steps. Hatch something new. Cudex is free to use, with no ads. Cudex Pro adds more. HOW IT WORKS • Your iPhone already counts your steps with Apple Health • Tap Collect in the app to turn today's steps into XP • XP raises your level, and every level hatches a new monster into your collection Every 100 steps is 1 XP. Steps you don't collect by midnight are gone, so the daily tap is the habit. Up to three reminders a day help you collect before the day ends. FREE FOR EVERYONE • 60 monsters to find, one every level • Streaks, badges and quests to chase • A history calendar of every day you've walked • Outfits and places for your monster from the shop, bought with coins you earn by walking • Share cards for a great day or a new monster • A daily step goal you set yourself WALK WITH FRIENDS Add friends with a code and see who has walked the most today. Tap a friend to see their monster, their collection and their badges. Friends is optional. Nothing is shared until you turn it on, and you can stop sharing at any time. WHAT CUDEX PRO ADDS • 48 rare monsters to find • Home screen and lock screen widgets, so you can collect without opening the app • Apple Watch complications • Insights: trends, consistency, your week, goal days and the hours you walk • The full shop of outfits and places YOUR STEPS, YOUR CHOICE Cudex reads step counts from Apple Health. Your steps stay on your phone unless you turn on Friends, and then only the friends you add can see them SUBSCRIPTION Cudex Pro is available as a monthly or yearly subscription, or as a one-time Lifetime purchase. If a free trial is offered, it converts to a paid subscription unless you cancel before it ends. Payment is charged to your Apple ID at confirmation of purchase. A subscription renews automatically unless you cancel at least 24 hours before the end of the current period. Manage or cancel it in your Apple ID settings. Collect monsters. Keep walking. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://acris.ai/monster-steps/privacy

Screenshots

RunGap4 screens
Cudex4 screens

Verdict

The call

The clearest difference is update cadence: Cudex at every 5 days against RunGap's every 2 weeks. RunGap's advantage is iOS requirement (15.6 vs 26.5). 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 Cudex sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

RunGap ships an update every 2 weeks, Cudex every 5 days. The most recent releases landed on October 14, 2026 and October 1, 2026 respectively.

Scorecard2 real differences · 8 level
RunGap versus Cudex: the parameters behind the verdict, then further details
ParameterRunGapCudex
PriceFreeFree
Rating4.8 (5.9K ratings) — better—
Positive reviews79.2% 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 — better26.5
Further details — not scored
Size14 MB29 MB
Age rating12+4+
DeveloperCTRL-NSiraj Hasanov

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

Cudex

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

Cudex

Subscriptions2
  • Pro Month$4.991 Month
  • Pro Year7 Days trial$29.991 Year
One-time1
  • Pro Lifetime$59.99

Questions

Is RunGap free?
RunGap is free to download, with in-app purchases available.
Is Cudex free?
Cudex is free to download, with in-app purchases available.
Do RunGap or Cudex have ads?
Neither RunGap nor Cudex shows ads.
Which is updated more often, RunGap or Cudex?
RunGap ships an update every 2 weeks, and Cudex every 5 days. Most recently, RunGap was updated on October 14, 2026 and Cudex on October 1, 2026.

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