Massiv keeps logging gym sets when the phone is out of range

Runners and triathletes often fit two strength sessions a week around their endurance training to stay injury-free, and each set can turn into phone admin: unlock the phone, find the exercise, type the load and reps, restart the rest timer. A watch app does not always fix that. If it needs a live phone connection for every entry, it stalls when the phone is in a locker, a gym bag or simply out of Bluetooth range.

Massiv, a self-funded strength training app built by developer Alan and published by Aristocoded LLC, moves the working set to Apple Watch and Wear OS. The watch shows the exercise and the previous result, adjusts weight and reps, runs the rest countdown and, for Pro users, opens a plate calculator. If the phone connection drops, the watch keeps logging and delivers the sets when the phone is back in range. The phone still starts and stores the workout, so Massiv is a phone-and-watch system rather than a watch-only app.

Why strength logging slips

Strength sessions get skipped or logged badly when recording each set takes more effort than lifting it. For an endurance athlete the useful record is simple: what was lifted, how many reps were completed, and how that compares with last time.

When every set means reaching for a phone and finding the right exercise again, logging gets put off until later, when the details are easier to forget. A watch screen that only starts a workout or shows a timer still leaves the actual set log on the phone.

How Massiv keeps the set on the wrist

TL;DR: The workout starts on the phone and every set is logged on Apple Watch or Wear OS. The watch shows the previous result, adjusts weight and reps, runs the rest countdown and, with Massiv Pro, opens a plate calculator. If the phone connection drops, logged sets wait on the watch and are delivered when the phone reconnects.

Once the lifter starts a workout on the phone, the whole session is copied to the watch and saved there, and the watch screens take over between sets.

The set screen

The exercise name sits at the top with two progress rails, Exercise (for example 2/4) and Set (for example 1/3). Below them are the weight and reps, each with minus and plus buttons. Turning the Digital Crown on Apple Watch, or the rotary input on Wear OS, changes the value in steps that match the bar and plates set up in Massiv. A full-width Log Set button records the set, with heart rate and elapsed time just above it.

Previous-set context

A line under the reps shows the most recent working set of that exercise from an earlier session, such as “Previous: 5 @ 125 lb”, or the planned target when there is no history. On smaller Wear OS screens, such as the 41mm Pixel Watch, the line is hidden to keep the controls readable.

Rest countdown

Logging a working set starts a countdown ring on the watch using that exercise’s rest time. The rest screen shows what comes next, such as “Set 2/3 · 5 reps @ 135 lb”, with buttons to add 30 seconds or skip the rest. The countdown runs on the watch itself, so it does not depend on the phone.

More actions with Pro

A ••• button opens the plate calculator, set types, adding or deleting a set, and swapping the exercise. The plate calculator uses the bar and plates saved in Massiv’s equipment settings and shows what to load on each side. On Apple Watch it appears for barbell exercises.

On Apple Watch, the session also runs as a strength training workout, so heart rate and active calories are recorded and saved to Apple Health when it ends. On Wear OS, the same screens adapt to a round display, and heart rate is shown live on the watch.

Worked example: seven sets and one dropped connection

This is an illustrative session, not a recorded test. It shows how the screens and the offline queue behave for a lifter training in pounds on Massiv Pro, with a 45 lb (20 kg) bar and standard plates set up in the app.

The athlete starts the workout on the phone, waits a moment for it to appear on the watch, then leaves the phone in a gym bag on the other side of the room.

Barbell squat, 3 × 5 at 135 lb (61 kg)

The watch shows “Previous: 5 @ 125 lb” from the last session, so the plan is a 10 lb increase. The plate calculator shows one 45 lb plate per side. The first set is logged while the phone is still in range, and the rest countdown starts on the wrist.

The connection drops

Partway through the first rest, the phone falls out of range. Nothing on the set screen changes. Massiv shows no separate offline warning, and on Apple Watch the only sign is watchOS’s own disconnected-iPhone icon beside the clock. Squat sets two and three are logged on the watch anyway, and both wait in the watch’s queue.

Barbell bench press, 3 × 5 at 95 lb (43 kg)

Because the whole session is already on the watch, the athlete moves on to the next exercise with the phone still out of range. The watch shows “Previous: 5 @ 90 lb”, and the plate calculator shows one 25 lb plate per side. All three sets are logged and queued.

Barbell deadlift, 1 × 5 at 185 lb (84 kg)

The watch shows “Previous: 5 @ 175 lb”, and the plate calculator shows a 45 lb and a 25 lb plate per side. The set is logged and queued.

Reconnection

Back at the gym bag, the phone is in range again. The six queued sets are delivered from the watch, and the phone’s session shows all seven: three squat, three bench and one deadlift. No weight was typed into the phone.

Integrations and compatibility

• Apple Watch needs watchOS 11 or later, which covers Series 6 and newer, SE (2nd generation) and newer, and every Ultra. It pairs with Massiv on iPhone.
• Wear OS needs version 3 or later, including Samsung Galaxy Watch4 and newer and Google Pixel Watch models. It pairs with Massiv on an Android phone.
• Phones need iOS 16.2 or Android 8.0 or later. Apple Watch works only with the iPhone app, and Wear OS only with the Android app.
• With the setting on, Massiv writes completed workouts and body weight to Apple Health on iPhone or Health Connect on Android. Writes go one way, and Massiv does not read them back.
• Training history imports from CSV exports of Strong, Hevy, Fitbod, StrongLifts, FitNotes and Jefit, and exports as CSV or a full JSON backup.
• There is no Garmin, COROS, Polar or Suunto app, and no direct sync with Strava, TrainingPeaks or intervals.icu.
• No account is needed. Records stay on the device unless encrypted backup to iCloud or Google Drive is turned on.
• Weights can be in kilograms or pounds, with the bar, plates and dumbbells the lifter actually owns.

Price

Watch set logging is free. The free tier includes every built-in program, unlimited history, CSV import and export, and logging from the watch with the previous-set line, rest countdown and offline queue.

Massiv Pro costs $4.99 a month, $29.99 a year or $99.99 once in the US, and local store prices vary. It adds automatic weight progression after a 30-day free preview, the program builder, body and progress photo tracking, deeper analytics and unlimited custom exercises. On the watch, Pro unlocks the plate calculator, set types, adding or deleting sets and swapping an exercise.

More: Massiv’s Apple Watch and Wear OS logging

Quick answers

Can an Android phone owner use Massiv?
Yes. Massiv has a full Android app and the Wear OS app pairs with it, so an Android owner never needs an iPhone. Apple Watch works only with the iPhone app, and a Wear OS watch only with the Android app.

Does Massiv need the phone nearby during a workout?
Only at the start. Once the workout reaches the watch, the lifter can log sets, change exercise and run rest timers with the phone out of range. Logged sets wait on the watch and are delivered when the phone reconnects.

Does Massiv work with Garmin or Strava?
Not directly. Massiv has no Garmin Connect IQ app and no Strava or TrainingPeaks connection. Workouts go to Apple Health on iPhone, Health Connect on Android, or CSV and JSON export files.

Is Massiv free?
Logging sets from the watch is free, including the previous-set line, rest timer and offline queue. Massiv Pro, at $4.99 a month, $29.99 a year or $99.99 once in the US, adds the plate calculator, automatic progression and the program builder.

Related reading

• Compound: one strength routine, run from your Apple Watch
• HYROX sports tech hub
• Google Pixel Watch 4 review

Author: Alan, developer of Massiv (Aristocoded LLC), edited by the5krunner.

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Last Updated on 16 October 2026 by tfk the5krunner