LSF HRM vs HIIT Dual Timer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LSF HRM
Track your fitness progress with this app. It allows you to record out-of-club workouts, monitor your intensity with a unique points system, and view real-time heart rate and calorie burn. Track weight loss and activity via a Bluetooth monitor.
- Record out-of-club workouts
- Track progress over time
- Measure intensity with points system
- Monitor real-time heart rate zones
- View calorie burn per minute
- Track activity via Bluetooth monitor
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The Lady Strong Fitness App allows your members to: • Record, store, and track out-of-club workouts • Measure intensity by a unique points system • Track progress over time by monitoring weight loss • View real time heart rate displayed in colored heart rate zone chart or dashboard • View calorie burn per minute of a workout • Record, store, and track activity via a Bluetooth Activity Monitor
HIIT Dual Timer
This interval timer allows you to set custom durations for work and rest periods, and then repeat them for a specified number of rounds. It's designed for high-intensity interval training and other timed activities.
- Customizable work intervals
- Customizable rest intervals
- Set number of rounds
- Simple start and go functionality
- Ideal for HIIT workouts
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Want to do a workout for 30 seconds, and then rest for 15 seconds and repeat? This is the dual timer you have been looking for. It can be used for many different things. Set your first timers seconds and minutes. Second timers seconds and minutes. Finally set the number of "rounds" or times the two timers run. then just press go.. and do your thing.
Screenshots
Verdict
The clearest difference is rating: LSF HRM at 4.5 against HIIT Dual Timer's 3.0. LSF HRM also leads on ratings volume (4 vs 1). HIIT Dual Timer's advantage is update cadence (every 5 days vs every 11 months). 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. Neither carries in-app purchases, so what you see is what you pay.
LSF HRM holds the better App Store score, 4.5 against 3.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively.
LSF HRM ships an update every 11 months, HIIT Dual Timer every 5 days. The most recent releases landed on June 1, 2026 and June 3, 2026 respectively.
| Parameter | LSF HRM | HIIT Dual Timer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (4 ratings) — better | 3.0 (1 ratings) |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 4 — better | 1 |
| Update frequency | Every 11 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.4 | 13.0 — better |
| Further details — not scored | ||
| Size | 40 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Nci Technology Inc. | BWorby Works |
Customer experience
LSF HRM
HIIT Dual Timer
In-app purchases
LSF HRM
No in-app purchases
HIIT Dual Timer
No in-app purchases
