Simple Pace vs CalcuRun
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Simple Pace
Effortlessly convert between distance, time, pace, and speed. This tool simplifies race planning with split calculators and quick access to common race distances. Enjoy a private, ad-free experience with customizable settings.
- Pace Calculations
- Split/Lap Calculator
- Common Distances Lookup
- Live Pace Tracking
- Customizable Settings
- Privacy Focused
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Distance, time, pace and speed, always in sync. Change any one and the others follow. A lock holds the value you care about while you work out the rest. On a relay team, or waiting for a runner at a race? ETA tells you the clock time they reach you, with a live countdown that carries on to the Lock Screen and up to three alerts. Tap when they arrive and the leg is saved with the pace they really ran. FREE • Four linked calculators: tap any value to edit it, tap a unit to switch between miles and kilometers. Every row keeps its own units. • Race distances built in: 400 m, 5k, 10k, half-marathon, marathon, and ultras from 50k to 100 miles. • Share card: send your distance, time and pace as an image. • Make it yours: light or dark, eight accent colors with matching app icons or the Multicolor theme that gives distance, time, pace, and speed each their own color, reorderable sections, and the Classic interface if you prefer it. • Accessibility: VoiceOver, Voice Control, Dynamic Type, Sufficient Contrast and Reduced Motion. • All calculations work offline. Seven languages. PRO (one-time purchase, no subscription) • Splits: plan even, negative or positive splits at any interval from 100 m to 10 miles, by halves, thirds, quarters or fifths, or an interval of your own, then export the table. • ETA: made for relay exchanges and race spectators. Each runner gets a card with the arrival clock time, a live countdown, estimated progress, up to three alerts and a note. The countdown also runs on the Lock Screen, in the Dynamic Island and as a badge on the main screen. Tap They are here to save the leg with the pace actually run; finished legs stay in a list you can edit and share. Bought the app during the paid period (October 2024 to February 2025)? Pro is already yours. No ads. No tracking. No account. Anonymous usage analytics can be switched off in Settings. It's just me, a runner, building the pace calculator I want to use. Send feedback from inside the app and I'll answer.
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 rating: CalcuRun at 5.0 against Simple Pace's 4.5. CalcuRun also leads on monetization model (free vs free with in-app purchases). Simple Pace's advantage is update cadence (every 10 days vs every 4 weeks) and ratings volume (32 vs 6). 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
Both are free to download. Simple Pace sells 4 one-off in-app purchases and CalcuRun sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
CalcuRun holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Simple Pace has 32 ratings behind it against 6, so its average is the more settled of the two.
Simple Pace ships an update every 10 days, CalcuRun every 4 weeks. The most recent releases landed on September 24, 2026 and September 9, 2026 respectively.
| Parameter | Simple Pace | CalcuRun |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (32 ratings) | 5.0 (6 ratings) — better |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 32 — better | 6 |
| Update frequency | Every 10 days — better | Every 4 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 54 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Camp Four Software LLC | Joseph Iannazzone |
Customer experience
Simple Pace
CalcuRun
In-app purchases
Simple Pace
- Small Tip$0.99
- Go Pro$2.99
- Medium Tip$4.99
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- Large Tip$9.99
CalcuRun
- 1 Mile$0.99
- 5K$1.99
- Turkey Trot$3.99
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- Half Marathon$5.99
- Marathon$9.99








