KesselRUN Running
ThreeLees LLC Health & Fitness iPhoneiPadiPod touch
KesselRUN Running is a free Health & Fitness app for iPhone and iPad by ThreeLees LLC. Requires iOS 15.1. Updated July 8, 2026.
- Price
- Free
- on the App Store
- Size
- 33 MB
- Age 4+
- Updated
- Jul 8
- 2026 · v1.0.29
Screenshots
About KesselRUN Running
KesselRUN stands out from traditional running apps. It is not another “go farther, longer, slower” distance tracker. It is a free, privacy-first interval running app and HIIT coach built to make every minute count. KesselRUN is the ultimate non-distance alternative to mainstream running apps—and it is completely free and ad-free! Instead of asking you to jog forever or rack up endless walking miles, KesselRUN guides you through high-intensity run/walk intervals: bursts of hard running, intentional recovery, and repeatable workouts that keep training exciting. HIIT-style running helps you burn more calories in less time, challenge fast-twitch muscle fibers, improve cardiovascular conditioning, and build fitness without turning every workout into a long slog. Think of it like a coach in your pocket yelling, “Punch it!” — then giving you permission to recover before the next blast. The Ultimate Audio Freedom: Customizable Spoken Cues: Most running apps lock you into generic, pre-recorded audio prompts. KesselRUN changes the game. With our fully customizable text-to-speech (TTS) engine, you control exactly what your coach says and when they say it. Create Your Own Prompts: Type out custom voice commands for interval changes, halfway marks, or countdowns. Edit Cues on the Fly: Add, tweak, or completely change any audio notification to match your personality, humor, or motivational style. Hands-Free Focus: Get clear, real-time spoken guidance without ever having to unlock or look at your phone screen. Why KesselRUN Beats Other Running Apps: • Interval-First Architecture – Built from the ground up around timer-based interval running, not retrofitted from a GPS distance tracker. • Fully Customizable Programs – Create structured training plans that match your goals, current fitness, available time, and preferred intensity. • Fully Customizable Workouts – Tune warmups, cooldowns, run segments, walk/recovery segments, rounds, and timing so your workout fits you. • HIIT for Maximum Calorie Burn – Short, intense efforts raise workout intensity and make limited training time highly effective. • Fast-Twitch Stimulation – Sprint-style intervals recruit powerful muscle fibers that steady walking and easy jogging ignore. • Cardio Without the Boredom – Push, recover, repeat, and finish feeling like you actually trained. • Privacy-First by Design – No location tracking. No route maps. No ad network tracking. No background network tracking. Your run data is your business, not someone else’s product. Whether you are a beginner looking for a smarter alternative to bloated running apps, a walker ready to add powerful bursts, or a runner wanting more intensity without longer mileage, KesselRUN is your simple, private interval coach. Perfect For: • Run/walk HIIT sessions & sprint workouts • Weight-loss-focused cardio training • Beginner-friendly custom running plans • Time-efficient, high-intensity cardio days You control the workout. You control the cues. You control your data. Train faster. Burn brighter. Run the KesselRUN. Disclaimer: Always train within your ability, warm up properly, and consult a qualified health professional before starting a new high-intensity exercise program if you have health concerns. KesselRUN is part of the KesselFIT.com family.
What’s new
Version 1.0.29 · Updated July 8, 2026
Updated security settings
App privacy
The developer, ThreeLees LLC, reported these privacy practices to Apple.
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Contact Info: Email Address, Name
- User Content: Emails or Text Messages
- Health & Fitness: Health, Fitness
- Identifiers: User ID
Used for: Developer’s Advertising or Marketing, Product Personalization, App Functionality
Alternatives to KesselRUN Running
Looking for apps like KesselRUN Running? Here are 6 similar apps on the App Store. The highest rated is Rounds: Interval HIIT Timer (5.0/5), and all 6 are free to download.
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IntervalKit
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Nemati GLP-1
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IntervalRunner: Pace Coach
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Rounds: Interval HIIT Timer
5.0
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StrideCue: AI Cadence Coach
5.0
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Minimal Interval Timer
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| KesselRUN Running | – | Free | July 8, 2026 | |
| IntervalKit | – | Free | Mar 17, 2026 | Compare |
| Nemati GLP-1 | – | Free | Oct 2, 2026 | Compare |
| IntervalRunner: Pace Coach | – | Free | Oct 15, 2026 | Compare |
| Rounds: Interval HIIT Timer | 5.0 / 5 (2) | Free | May 9, 2026 | Compare |
| StrideCue: AI Cadence Coach | 5.0 / 5 (2) | Free | Oct 13, 2026 | Compare |
| Minimal Interval Timer | – | Free | Jan 20, 2026 | Compare |
Compare KesselRUN Running with the top alternatives: ratings, updates, ASO score and keyword gaps →