Paces vs CalcuRun
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Paces
Easily calculate your running pace and predict finish times for various race distances. Save your preferred paces and distances for quick access during training.
- Calculate running pace
- Predict finish times
- Customizable race distances
- Save preferred paces
- Skip paces by the minute
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Pace Calculator for Runners is an app that’s designed to do one thing well. When training for a recent marathon, I found myself constantly Googling for pace tables with finish times. I built this app so I could quickly answer the question, “if I ran at a 7:30 pace, what would my marathon time be? What about a 5K?” Key features I’ve included: - The +1m and -1m buttons at the bottom allow you to easily skip between paces by the minute. - Tapping the top bar lets you change the race distance. You can choose from a set of default, or enter in a custom distance of your own in miles or kilometers. - The selected pace and race distance are saved, so next time you open the app, you won’t have to re-enter any information.
CalcuRun
This app helps runners predict race times, plan training paces, and calculate race splits. It offers a science-based approach to training, with predictions based on recent performance. All calculations are done on-device for privacy.
- Predict race times based on recent performance
- Plan workout paces
- Calculate race splits
- Support for custom race distances
- iCloud sync across devices
- On-device calculations for privacy
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Tired of juggling apps, websites, and bookmarks to plan your race training? CalcuRun is an all-in-one solution — completely free, with no ads and no accounts. Newly redesigned in version 3.0 with a chronograph-inspired look and a dot-matrix display, CalcuRun helps you predict race times, plan splits, and dial in your workout paces. Features * Input a recent race or time trial and get accurate predictions across common race distances. * Use the "Other" race distance for non-standard events. * View splits for each race, in kilometers or miles. * Get workout paces based on your predictions. * Use the Calculator to plan an individual race — input a time or pace and calculate the other. * Sync your saved races and predictions across your iPhone and iPad with iCloud. * Redesigned iPad layout with a sidebar that takes advantage of the bigger screen. * Choose between the new dot-matrix display font or the system monospaced face. * Learn more about how the calculations are performed. Most importantly, your data is private. Calculations run entirely on your device. CalcuRun does not require an account, internet access, or any device permissions. iCloud sync is fully encrypted, and your data is never sent to a CalcuRun server. If you choose to follow any in-app links, only the URL is passed to your default browser.
Screenshots
Verdict
The clearest difference is in-app purchases: Paces at none against CalcuRun's 5. Paces also leads on iOS requirement (15.0 vs 18.6). CalcuRun's advantage is update cadence (every 4 weeks vs every 4 months). On price, rating, ratings volume and 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
Both are free to download. CalcuRun sells 5 one-off in-app purchases. Paces asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Paces against 5.0 for CalcuRun. Both are backed by a comparable volume of ratings — 5 and 6 respectively.
Paces ships an update every 4 months, CalcuRun every 4 weeks. The most recent releases landed on June 2, 2026 and September 9, 2026 respectively.
| Parameter | Paces | CalcuRun |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) | 5.0 (6 ratings) |
| Number of ratings | 5 | 6 — better |
| Update frequency | Every 4 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 2 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Austin Louden | Joseph Iannazzone |
Customer experience
Paces
CalcuRun
In-app purchases
Paces
No in-app purchases
CalcuRun
- 1 Mile$0.99
- 5K$1.99
- Turkey Trot$3.99
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- Half Marathon$5.99
- Marathon$9.99








