Klemy vs TreadSimple
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Klemy
This app guides you through various treadmill workouts, from popular plans like 12-3-30 to custom routines. It automatically adjusts speed and incline on compatible treadmills or provides manual prompts for others. Track your progress, heart rate, and even shoe mileage.
- Pre-set and custom treadmill workouts
- Automatic speed and incline control (FTMS)
- Manual speed/incline prompts for non-smart treadmills
- Heart rate and zone tracking
- Shoe mileage and treadmill maintenance logs
- Workout export (FIT/TCX)
- Live Activities and widgets
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Klemy Treadmill runs planned workouts on any treadmill. Start 12-3-30, Hill Walk or Norwegian 4×4 in one tap, or build your own. A Bluetooth FTMS treadmill changes speed and incline for you. On any other, a countdown tells you what to set. No smart treadmill? Set your speed and the app calculates distance and pace. With FTMS, speed, distance, incline and elevation sync on their own. Start on Apple Watch, iPhone, or both together. Workouts - Ready for walking and running: 12-3-30, Interval Walk, Hill Walk, Rolling Hills Walk, Easy Run, Zone 2 Run, Norwegian 4×4, 30/30s, Hill Repeats, Tempo Progression - Zone 2 Run and Zone 2 Hike adjust your FTMS treadmill's speed and incline to keep your heart rate in zone 2 - Build your own from warmup, intervals and cooldown, with speed and incline for every step - A live chart shows what comes next, on iPhone and Apple Watch - Need a moment? Push the next change back 30 seconds or a minute - Optional tap on your wrist before each change Tracking - Works with every treadmill and walking pad, offline or over Bluetooth FTMS - Speed and incline shortcuts for quick changes - Set speed and incline with Siri, from iPhone or Apple Watch - Heart rate and zones, cadence, active energy and elevation gain - Shoe mileage: log the distance on each pair and know when one is worn out - Treadmill care: an odometer per machine, service due dates and deck guidance for your model - Mark a workout as a race, then filter your history to races - Export workouts as FIT or TCX files for your training log - Customizable workout layouts on iPhone and iPad - Live Activities and widgets - Body temperature, skin temperature and heat strain for heat training, with compatible Bluetooth sensors - Metric or imperial units and optional media controls - No account, no sign-up, no tracking The app and all in-app purchases are licensed under Apple standard terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula
TreadSimple
This app transforms your Bluetooth treadmill and heart-rate monitor into a workout dashboard on your iPhone. It allows you to connect, record, review, and export your indoor runs locally, with optional cloud syncing.
- Connects to compatible Bluetooth FTMS treadmills
- Pairs with Bluetooth heart-rate monitors
- Tracks speed, incline, distance, time, calories, and heart rate
- Supports Live Activities and TV Mode for display
- Saves workout history locally on iPhone
- Exports to Apple Health and Strava
- Offers custom workout screens (Pro)
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Your run, your way. TreadSimple turns a compatible Bluetooth treadmill and heart-rate monitor into a focused workout dashboard for iPhone. Connect, record, review, and export without creating a TreadSimple account or putting your workout history in a developer-run database. BUILT FOR THE BELT • Connect to compatible treadmills using the Bluetooth FTMS standard • Pair a standard Bluetooth heart-rate monitor at the same time • Follow speed, incline, distance, time, calories, heart rate, zones, and laps • Keep recording through ordinary connection interruptions and recover unfinished workouts SEE THE WORKOUT YOUR WAY • Use a clear, high-contrast Activity View in portrait or landscape • Follow supported workouts from the Lock Screen and Dynamic Island with Live Activities • Put a read-only live dashboard on a compatible AirPlay display with TV Mode • Respect system settings for Dynamic Type, VoiceOver, dark mode, and reduced motion SAVE LOCALLY. SHARE BY CHOICE. • Keep workout history on your iPhone • Save completed indoor runs to Apple Health • Upload route-free indoor runs to Strava • Share standards-based FIT files without fabricated GPS data • Keep automatic sync off until you enable it for each destination TREADSIMPLE PRO Free includes two workout starts each week, the standard Activity View and TV Mode, local history, individual FIT sharing, Apple Health, and Strava. TreadSimple Pro adds unlimited recording, up to five custom workout screens, a custom TV dashboard, animated backgrounds, custom heart-rate zones and lap distance, and full-history FIT export. Monthly and annual TreadSimple Pro subscriptions renew automatically unless canceled. Eligible customers can start a seven-day free trial. Manage or cancel in App Store account settings. Locally stored history and individual exports remain available if Pro expires. Compatibility depends on the treadmill model and its Bluetooth FTMS implementation. TreadSimple records and displays workout data; it does not control treadmill speed or incline and is not a medical device. Privacy Policy: https://treadsimple.com/privacy/ Terms & Safety: https://treadsimple.com/terms/
Screenshots
Verdict
The clearest difference is rating: TreadSimple at 5.0 against Klemy's 3.9. TreadSimple also leads on update cadence (every 2 days vs every 4 days) and iOS requirement (15.0 vs 26.0). Klemy's advantage is ratings volume (9 vs 1). On price, ads, in-app purchases and monetization model 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. Klemy sells 6 in-app purchases, starting at $4.99 per month and TreadSimple sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
TreadSimple holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Klemy has 9 ratings behind it against 1, so its average is the more settled of the two.
Klemy ships an update every 4 days, TreadSimple every 2 days. The most recent releases landed on November 8, 2026 and October 25, 2026 respectively.
| Parameter | Klemy | TreadSimple |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (9 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 9 — better | 1 |
| Update frequency | Every 4 days | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPod |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 76 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Vsevolod Klementjev | James Allen |
Customer experience
Klemy
TreadSimple
In-app purchases
Klemy
- Training Pass - Monthly$4.991 Month
- Family Pass - Monthly$7.991 Month
- Training Pass - Annual7 Days trial$24.991 Year
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- Family Pass - Annual7 Days trial$39.991 Year
- Lifetime$79.99
- Family Lifetime$119.99
TreadSimple
- TreadSimple Pro Monthly7 Days trial$2.991 Month
- TreadSimple Pro Annual7 Days trial$29.991 Year
Questions
Is Klemy free?
Is TreadSimple free?
Which has better reviews, Klemy or TreadSimple?
Do Klemy or TreadSimple have ads?
Which is updated more often, Klemy or TreadSimple?
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