# Kalman — Pure Running Utility > Simple, fast, and accurate GPS running tracker with essential metrics. (iPhone/iPad app by Stephen Campbell.) - Source: https://appshunter.io/ios/app/kalman/id6753914677 (this page in markdown: same URL + `.md`) - Developer: [Stephen Campbell](https://appshunter.io/developer/1845687474) - Category: Health & Fitness - Price: Free - Rating: 5.00/5 from 4 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 18.0 · 11 MB - Languages: American English - Released: 2025-10-13 - Data updated: 2026-08-14 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/kalman/id6753914677/reviews.md ## What is Kalman? start running. kalman is designed for runners who value simplicity, speed, and accuracy above all else. run tracking, simplified instant start: A single tap is all it takes to begin tracking. No menus, no social feeds, no complicated setup. essential metrics: Clearly see the stats that matter most: distance, pace, time. gps accuracy: use your device's GPS for to track your route and mileage - no paywall. Use the device you paid for to it's full potential. no unnecessary features: We don't try to be a social network, diet log, or coaching platform. kalman is a dedicated running tool built for maximum efficiency and utility. data that stays yours: kalman is built on a foundation of respect for the user. Your personal run data is strictly kept on device. ## Key features - Instant run tracking - Essential running metrics - Accurate GPS tracking - On-device data storage - No social features - No coaching features ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/kalman/id6753914677/reviews.md ### 5/5 — Great app! *2025-10-21* Really great layout and very simple to use!! Super minimal without all the fluff that regular fitness apps have ## Frequently asked questions about Kalman ### What are the main features of Kalman? Kalman provides instant run tracking, displays essential metrics like distance, pace, and time, and uses GPS for accurate route and mileage tracking. It focuses on being a dedicated running tool without social or coaching features. ### How accurate is Kalman's GPS tracking? Kalman utilizes your device's GPS for tracking your route and mileage, aiming for high accuracy. This feature is available without a paywall. ### Does Kalman store my running data on my device? Yes, Kalman is built with user privacy in mind and keeps your personal run data strictly on your device. It does not upload or share your data externally. ### What kind of running metrics does Kalman show? Kalman clearly displays the most important running statistics, including distance covered, current pace, and the total time spent running. ### Is Kalman suitable for beginners? Yes, Kalman is designed for simplicity with instant start functionality and essential metrics, making it easy for beginners to begin tracking their runs immediately. ### Does Kalman have ads? No, Kalman does not contain advertisements, providing an uninterrupted running experience. ### What devices does Kalman support? Kalman is currently supported on iPhone devices. ### How often is Kalman updated? The latest version of Kalman was released on 2025-10-24, with the app last updated on 2025-10-25, indicating recent and ongoing development. ## Version history (last 4 releases) ### 2025.10.24 — 2025-10-25 I added a new workout detail view to see your route, pace, and time, after a workout is complete ### 2025.10.19 — 2025-10-21 I focused on some crucial stability fixes and added a couple of key customization options based on your feedback. Background Tracking: Location can now optionally be tracked in the background to improve route accuracy while your iPhone is locked. Map Usability: You can now interact with the map - and there's now slick animations to re-center on your current location. This was basically an entire overhaul - so I expect the map UX to feel much more polished than the previous version. Unit Customization: You can now configure km vs mi (and it actually behaves correctly) Light Mode Map: I adjusted the map styles and added a light mode map - I'm hoping this should make the UI feel a bit more uniform. Cheers! ### 2 — 2025-10-15 Support for Dark Mode and compatibility with iOS 18. ### 1.0 — 2025-10-13 No release notes. ## Apps similar to Kalman | App | Rating | Price | Category | | --- | --- | --- | --- | | [HIGH Fitness App](https://appshunter.io/ios/app/high-fitness-app/id1537768311) | 4.2 (226) | Free | Health & Fitness | | [Start Rowing - Workouts App](https://appshunter.io/ios/app/start-rowing-workouts-app/id1504306767) | 4.7 (681) | Free | Health & Fitness | | [Chelsea Piers Fitness App](https://appshunter.io/ios/app/chelsea-piers-fitness-app/id6503904000) | 3.2 (16) | Free | Health & Fitness | | [ElevenThirty](https://appshunter.io/ios/app/eleventhirty/id1461506878) | 2.3 (3) | Free | Health & Fitness | | [Maize: Organic Local & Healthy](https://appshunter.io/ios/app/maize-organic-local-and-healthy/id6449719834) | 4.6 (121) | Free | Health & Fitness | | [Season Health](https://appshunter.io/ios/app/season-health/id1615042054) | 4.5 (26) | Free | Health & Fitness | --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-14.*