Supported Features
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VoiceOver
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Voice Control
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Larger Text
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Dark Interface
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Differentiate Without Color Alone
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Sufficient Contrast
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Reduced Motion
Splitr: Run Calculator
Pace & Speed Calculator
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
The fastest way to go from distance + time to pace, speed, and splits. Built for runners who want answers before they finish typing.
Splitr is a smart pace calculator for runners, cyclists, and anyone who thinks in splits.
Enter any two values — speed, pace, distance, or time — and Splitr instantly calculates everything else. No tapping a button. No switching screens. Just the numbers you need, the moment you need them.
**How it works**
Type a distance and a time, and Splitr shows you your pace and speed. Type a pace and a distance, and it tells you your finish time. Change any field and everything updates live.
**What you can calculate**
- Speed in mph and km/h
- Pace per mile and pace per kilometre
- Distance in miles and kilometres
- Total time in hours, minutes, and seconds
**Distance shortcuts**
Tap 800m, 1.5K, 3K, 5K, 10K, Half Marathon, or Marathon to instantly set the distance — then just enter a pace or time to get everything else.
**Built for clarity**
A clean, dark interface keeps the focus on your numbers. Fields you've entered are highlighted in blue. Derived values are calculated automatically and shown in a distinct style so you always know what you typed vs. what was worked out.
**Save your presets**
Save any calculation with a custom name. Restore it with one tap. Reorder and rename your presets whenever you like. Your presets sync automatically across your devices via iCloud.
**Home screen widget**
Add the Splitr widget to your home screen to see your most recently saved preset at a glance — speed, pace, distance, and time — without opening the app.
**Share results**
Share any calculation via text, email, or any app on your phone.
**100% free. Privacy-respecting.**
Splitr is free and always will be. No subscription. No sign-up. No ads. No personal data collected — just anonymous, non-identifying usage diagnostics. Your presets sync across your devices via your own iCloud — we never see them. Network activity is limited to that iCloud sync, Apple's StoreKit for the optional tip jar, and the anonymous diagnostics. Every feature is free, no strings attached.
Whether you're planning a marathon, checking your tempo pace, or converting a training plan from miles to kilometres, Splitr gives you the answer before you've finished typing.
Ratings & Reviews
v1.11
- Performance, reliability, and stability improvements.
# Release Notes
v1.8
- Choose miles or kilometers everywhere — a single Preferred Units setting now drives the calculator, saved presets, the splits table, the widget, and shared results, so distances and paces always read in the units you think in.
- Smarter first launch — the app opens in your region's units automatically (kilometers in metric countries, miles elsewhere) instead of always defaulting to miles.
v1.6
- Performance and reliability improvements under the hood
The developer, ZIma Logistics LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
- Diagnostics
The developer indicated that this app supports the following accessibility features. Learn More
For more information, visit the developer’s accessibility website .
Information
- Seller
- Zima Logistics LLC
- Size
- 4.6 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Large Tip $4.99
- Medium Tip $2.99
- Small Tip $0.99
- Copyright
- © 2026 Zima Logistics LLC