Modus Research vs Wristle
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Modus Research
This application works with a specific activity monitor to collect and analyze your health data. It provides insights into your physical activity, helping you understand your fitness trends. The platform is designed for users who want to track their progress with a compatible device.
- Activity monitoring
- Health data analysis
- Fitness trend insights
- StepWatch integration
- Progress tracking
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Modus RE is designed for use with the StepWatch activity monitor. Learn more at https://modushealth.com/
Wristle
This app provides real-time audio feedback and buzz alerts for your heart rate zones and pace during runs. It allows you to set custom goals and receive subtle vibrations to guide your performance without needing to look at a screen.
- Real-time pace and heart rate zone alerts
- Customizable buzz patterns
- Steer by feel with subtle vibrations
- No second screen required
- Detailed activity logging
- Tap controls for activity management
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Your band counts every beat and saves the verdict for tomorrow morning. Wristle gives it a voice today. Pick one goal before a run and the band does the talking. No second screen, no watch on the other wrist, phone in your pocket. PACE RADAR Hold the Pace goal to set a target, anywhere from 3:00 to 8:00 per kilometre. One strong buzz the moment you hit it, then silence. Drift off and soft ticks come back, faster the closer you get, so you can steer by feel alone. More than a minute per kilometre off target and the wrist goes quiet, because a buzz you cannot act on is just noise. HOLD A ZONE Zones built from your Max HR and Resting HR, or paste your exact cutoffs and match your band one for one. Hold the Zone goal to pick the one you want, and you get the same radar around it: one buzz on arrival, silence while you hold it, and the zone you drifted into buzzing its own number until you come back. On the run screen your target band lights up and the rest step back. ZONE ANNOUNCEMENTS For runs where you want no coaching at all, pick Quiet. Then entering zone 2 buzzes twice, zone 5 buzzes five times, with a cooldown per zone so a heart rate sitting on a boundary does not nag. Choose a Pace or Zone goal instead and the announcements stand down, because one run gets one speaker and you should never have to work out which buzz was which. YOUR OWN RULES Heart rate above or below any number. Pace slower or faster than a target. Each rule gets its own buzz pattern, so you know what happened without looking. Rules fire once, on the crossing, with hysteresis and a cooldown, not every second you sit over the line. TAP THE BAND Off until you switch it on, so nothing acts on a tap you never chose. Switched on: double-tap to arm, double-tap again within three seconds to start or stop an activity. Taps are ignored while you are actually running, because footstrike sets off the tap sensor, and they work again the moment you stop. WHEN SOMETHING GOES WRONG Every Bluetooth transition, strap event, tap decision and buzz is traced to the millisecond, on your phone. Add the Mark widget to your home screen and tap it the moment something fires wrongly, so the moment is easy to find later. One tap mails the log to me. WHAT YOU NEED An iPhone on iOS 16.6 or later. A WHOOP 5.0 band that is already set up and paired through its own official app. Wristle joins that pairing, it cannot create it, so without the official app having done the pairing first there is nothing for Wristle to find. Heart rate broadcast switched on. Wristle owns that setting: out of the box it turns the broadcast on when a run starts and off when it ends, and you can set it to stay on, or off, in the Connect tab. PRIVACY No account, no analytics, no servers of mine. Heart rate, GPS and the diagnostic trace stay on your phone. The only thing that ever leaves it is a support mail you write and send yourself, with the trace attached if you choose to attach it. Wristle is an independent app for WHOOP 5.0 owners. It is not affiliated with, endorsed by or sponsored by WHOOP, Inc. WHOOP is a trademark of its owner, used here only to say which band Wristle works with. Wristle is a wellness tool, not a medical device. It does not diagnose, treat or monitor any condition and must not be relied on as a medical or safety alert.
Screenshots
Verdict
The clearest difference is update cadence: Wristle at every 9 days against Modus Research's every 7 months. Modus Research's advantage is iOS requirement (12.0 vs 16.6). On price, rating, ratings volume and ads 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.
On the App Store both sit at effectively the same score — 5.0 for Modus Research against 5.0 for Wristle. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Modus Research ships an update every 7 months, Wristle every 9 days. The most recent releases landed on October 27, 2026 and October 17, 2026 respectively.
| Parameter | Modus Research | Wristle |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Every 7 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPad | iPhone, iPad — better |
| Requires iOS | 12.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 73 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Modus Health Llc | Dominyko, MB |
In-app purchases
Modus Research
No in-app purchases
Wristle
No in-app purchases









