iSmoothRun vs RunPaceCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iSmoothRun
This app tracks and logs various fitness activities like running, walking, and cycling with extensive sensor support. It offers advanced training features, workout planning, and seamless integration with popular fitness platforms and HealthKit.
- Activity tracking (running, walking, cycling)
- Advanced sensor support (HRM, stride, power)
- Running Power training
- Workout editor and planner
- TrainingPeaks/Final Surge sync
- HealthKit integration
- Data export (GPX, TCX, KML, PWX, CSV)
Read full descriptionHide full description
iSmoothRun is the best App to effectively track and log all of your running, walking, hiking, cycling and any other fitness activity. Solid performance. Continuous development. Best sensor support (HRM, stride sensor, speed/cadence combo, cycling power, running power, treadmill) Now with support for Watch OS9 "Running Power". (for devices that support it), Always ON Display support and Apple Watch Ultra Action Button. Base your training on Running Power, create workouts with power intervals and take your training to the next level. The best stand alone Apple Watch app, with configurable pages and solid performance that puts to shame any sports watch. Connect your BT sensors to your watch and leave your phone home. Best Interval and workout editor to help you follow your training plan. Create any workout based on HR, HR Zone, Pace or Power and let the app pace you. Workouts are available on the Apple Watch too with full Audio support! Auto sync structured workout plans from Training Peaks, Final Surge and TrainAsOne (requires Pro subscription). Connect with these services and have your structured workouts directly on your Apple Watch or iPhone. Start your run and let the app coach you. Integration with HealthKit. iSmoothRun uses HealthKit to export your activities into the Health and Activity apps and to read heart rate and biometric data. Accurately tracks time, distance, location, pace, altitude, running cadence, heart rate, power and reports them with audio announcements at configurable time or distance intervals. - Improve you running Form iSmoothRun will consistently track your running cadence. Use the build in metronome (iPhone only) to easily raise it. - The most extended support for sensors All BT Smart sensors (HRMs, footpods, speed/cadence combo, cycling power, Stryd running power custom metrics like Contact Time, Form Power etc are supported too) All ANT+ (extra hardware needed: 4iiii Viiiiva ) - Your data are yours, Don't lock yourself in. We love being open. Export your training data in GPX,TCX,KML,PWX, or CSV format. Connect and share your workouts with the most active running communities, Strava, Runkeeper, sportTracks, Movescount, SmashRun, TrainingPeaks, FinalSurge, Runalyzer, TrainAsOne and MapMyRun .This is the most connected app, period. -Run/Walk Are you into Run/walk training? Great. Now it's easier than ever to set your timers and enjoy all the benefits of the best running app. - Track your Shoe mileage Every runner knows that tracking the mileage of his running shoes is essential. - Check your workout statistics Average pace/speed, cadence, total distance, time, average/maximum heart rate and climb. Splits and interval statistics. - Your iPhone is your training log All your data stored in the device. Amazing customizable graphs for each run and for weekly, monthly loads. Follow closely your training load, train smarter and avoid overtraining. - Ghost Run Race against a previous run of yours or a predefined pace. Get motivated, evaluate your training. ...and much more! ** You can subscribe and pay through your iTunes account. Payment will be charged to iTunes account at confirmation of purchase. Your subscription will automatically renew unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. Subscriptions may be managed by the user and auto-renew may be turned off after purchase by going to the 'Manage Subscription' page in settings. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. The subscription will renew at the same cost. ** Continued use of GPS running in the background can dramatically decrease battery life. **iPod touch users are advised to use an external sensor, GPS or footpod.
RunPaceCalc
Easily calculate running pace and speed by inputting distance and time. This tool offers a streamlined interface for quick calculations of all key running metrics in one place.
- Calculate distance, time, speed, and pace
- Supports kilometers and miles
- Quick values in side panel
- Easy and fast interface
- Reset calculator by shaking device
Read full descriptionHide full description
RunPaceCalc lets you calculate your running pace and speed by entering distance and time. With an easy to use interface you can make calculations on distance, time, pace and speed in a single screen. Features: - Calculate distance, time, speed and pace - Units in Kilometers and Miles - Quick values at hand in the side panel - Easy and fast to use Pro tip: - Shake your iPhone or iPod to reset the calculator
Screenshots
Verdict
The clearest difference is review sentiment: iSmoothRun at 70% against RunPaceCalc's 0%. iSmoothRun also leads on update cadence (every 2 months vs every 14 months) and chart position (#83 vs unranked). RunPaceCalc's advantage is in-app purchases (none vs 2) and price ($0.99 vs $4.99). On 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
iSmoothRun costs $4.99 and RunPaceCalc $0.99 up front. iSmoothRun sells 2 in-app purchases, starting at $4.99 per month. RunPaceCalc asks for nothing beyond the download.
iSmoothRun ships an update every 2 months, RunPaceCalc every 14 months. The most recent releases landed on October 13, 2026 and October 11, 2026 respectively.
| Parameter | iSmoothRun | RunPaceCalc |
|---|---|---|
| Price | $4.99 | $0.99 — better |
| Rating | 4.4 (942 ratings) — better | — |
| Positive reviews | 70.1% of reviews — better | 0.0% of reviews |
| Number of ratings | 942 — better | — |
| Update frequency | Every 2 months — better | Every 14 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium — better | Paid |
| Best chart rank | #83 — better | — |
| Devices | iPhone, iPod, Apple Watch — better | iPhone |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 31 MB | 3 MB |
| Age rating | 4+ | +4 |
| Developer | Lake Horizon Ltd | Magnus Hjelm |
Customer experience
iSmoothRun
RunPaceCalc
Bugs and requests
iSmoothRun
Reported bugs
4 issues- Frequent app crashes, especially when starting a workout
- Inconsistent distance and pace tracking, especially on treadmill
- Issues with syncing data between iPhone and Apple Watch
- Problems with audio cues and notifications not working as expected
Requested features
5 requests- Improved Apple Watch app with standalone functionality
- Better integration with popular fitness platforms
- More customization options for data fields and audio cues
- Ability to import and sync workouts from other sources
- Improved battery life optimization
RunPaceCalc
Not enough reviews yet to summarise bugs or requests.
In-app purchases
iSmoothRun
- Pro Monthly Subscription7 Days trial$4.991 Month
- Annual Pro Subscription7 Days trial$24.991 Year
RunPaceCalc
No in-app purchases
Questions
Is iSmoothRun free?
Is RunPaceCalc free?
Do iSmoothRun or RunPaceCalc have ads?
Which is updated more often, iSmoothRun or RunPaceCalc?
Other comparisons















