RunPaceCalc vs Flexx.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
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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
Flexx.
This app helps you monitor workouts, track progress, and achieve fitness goals with personalized plans and engaging challenges. It integrates with HealthKit for seamless data syncing and offers class scheduling.
- Workout tracking
- Personalized training plans
- Activity level milestones
- Fun challenges with rewards
- Class scheduling and booking
- HealthKit integration
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Elevate your fitness routine with the app! It's your all-in-one solution to easily monitor your workouts, track progress, and achieve your fitness goals with engaging insights and motivation. The app offers an array of features, including: Workout Tracking Seamlessly capture all your workout data from gym equipment or manually enter it for a complete record. Training Plans Optimize your workouts with personalized plans provided by your fitness facility or trainer. Activity Levels Stay motivated with encouraging milestones as you progress to higher levels. Fun Challenges Challenge yourself with time-based activities that reward you with kudos, activity points, and prizes. Schedules Manage and book classes with ease to keep yourself on track. And much more! The app integrates with HealthKit to help you save your workouts and contribute to your fitness goals and challenges. Have a comment or question about the app? Email our team directly at digitalsupport@egym.com.
Screenshots
Verdict
The clearest difference is review sentiment: Flexx. at 100% against RunPaceCalc's 0%. Flexx. also leads on price (Free vs $0.99) and iOS requirement (15.0 vs 18.0). On update cadence, 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
Flexx. is free to download; RunPaceCalc costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
RunPaceCalc ships an update every 14 months, Flexx. every 9 months. The most recent releases landed on October 11, 2026 and October 1, 2026 respectively.
| Parameter | RunPaceCalc | Flexx. |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | — | 5.0 (5 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | — | 5 — better |
| Update frequency | Every 14 months | Every 9 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 148 MB |
| Age rating | +4 | 12+ |
| Developer | Magnus Hjelm | Flexx |
Customer experience
RunPaceCalc
Flexx.
In-app purchases
RunPaceCalc
No in-app purchases
Flexx.
No in-app purchases
