4iiii vs FindMyRun
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
4iiii
Connect and configure your 4iiii power meters and heart rate monitors. Record workout data, update device firmware, and even turn your Apple Watch into a cycling head unit. Track power, cadence, heart rate, and more while riding.
- Connects to power meters and heart rate monitors
- Records workout data (power, heart rate, cadence, etc.)
- Performs zero offset and firmware updates
- Apple Watch cycling head unit functionality
- Auto-syncs to Strava
- Locates power meters with Finder Feature
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The 4iiii app is a valuable tool to get the most out of the features of your 4iiii products and achieve your fitness goals. Using the app, you can connect to your 4iiii power meter (PRECISION 3/3+ models) and your Viiiiva heart rate monitor to both configure and update them. You can record workout data to FIT file format to be later uploaded to your favourite training software. The companion Ride Watch app turns your Apple Watch into a cycling head unit. View power, cadence, heart rate, speed, distance, live while riding. Ride records your workout data to FIT file, and to Apple Fitness for closing your rings. Auto-sync to Strava keeps your activity feed up-to-date on completion of every outdoor or indoor cycling workout. Multi-language: English, Deutsch, Nederlands, franΓ§ais, italiano, γ«γ»γγ, espaΓ±ol. Features include: 4iiii app Supported devices: 4iiii Powermeters, Viiiiva heart rate monitors Record workout data (heart rate, power, cadence, pace, speed, distance, time, laps, calories) Manage stored FIT files, upload to Strava 4iiii Power meters Personalize your device name Pair and unpair dual powermeters Perform zero offset Easy over-the-air firmware updates Note: Available for iOS only (supports only iOS version 17.6 or higher)
FindMyRun
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Find your next group run before it happens. FindMyRun connects you with upcoming runs from local running clubs β so you always know what's on, where it starts, and what the weather will be like when you show up. Discover runs near you Browse upcoming group runs by date and distance from your location, or search any city to explore the running scene somewhere new. Switch between a list and an interactive map to find the run that fits your week. Know before you go Each run shows a live weather forecast powered by Apple Weather β temperature, conditions, and chance of rain β so you can plan your kit and pace ahead of time. Follow the clubs you love Star your favourite running clubs and their upcoming runs appear automatically on your Favourites tab. No searching, no scrolling β just the runs that matter to you, ready to go. Save runs, get reminded Bookmark any run to save it to My Runs. Enable notifications and FindMyRun will remind you 24 hours before each saved run so you never forget to show up. See the route Where available, tap a run to see the full route plotted on a map β with colour-coded overlays that reflect the weather conditions you'll be running in. Quick access from your Home Screen Add the FindMyRun widget to see your next upcoming run at a glance without even opening the app.
Screenshots
Verdict
The clearest difference is update cadence: FindMyRun at every 3 weeks against 4iiii's every 3 months. 4iiii's advantage is device support (3 vs 1) and iOS requirement (17.6 vs 26.0). On price, ads and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
4iiii ships an update every 3 months, FindMyRun every 3 weeks. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.
| Parameter | 4iiii | FindMyRun |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 10.9% of reviews | β |
| Update frequency | Every 3 months | Every 3 weeks β better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | β |
| Devices | iPhone, iPad, Apple Watch β better | iPhone |
| Requires iOS | 17.6 β better | 26.0 |
| Further details β not scored | ||
| Size | 70 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | 4iiii Innovations Inc. | Miguel Dias |
Bugs and requests
4iiii
Reported bugs
21 issues- Cannot pair multiple power meters - only recognizes one at a time
- App fails to detect power meters that other apps find easily (Garmin, Wahoo)
- Dual-sided power meter only shows one side (usually left)
- Firmware update failures brick power meters permanently
- Login credentials not accepted despite being correct
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- Password reset emails never arrive
- App crashes on startup and during use
- Data fields randomly clear after being filled
- Bluetooth connection drops unexpectedly during rides
- Ride recording stops without notification
- FIT files become corrupted
- Battery percentage displays incorrectly (shows 49% constantly, 0% when charged)
- Zero offset calibration fails with error messages
- App unresponsive on device settings screen
- Update notifications loop continuously
- Registration screen doesn't scale properly on smaller screens
- App won't open after updates
- Incompatible with iOS 13, iOS 16
- Workout data incomplete or not recorded
- App keeps running in background draining battery
- Offset detection inconsistent (sometimes left, sometimes right)
Requested features
12 requests- Support for multiple power meters on single device
- Spanish language support
- Japanese language support
- Optional notifications instead of mandatory
- Improved bikeindex.org integration
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- Better UI/UX design modernization
- Offset number display for calibration verification
- ANT+ sensor support for non-4iiii devices
- Workout recording and history features
- Strava integration
- Optional account creation (local-only functionality)
- Improved error messages and feedback
FindMyRun
Not enough reviews yet to summarise bugs or requests.
In-app purchases
4iiii
No in-app purchases
FindMyRun
No in-app purchases









