# Seryz: Gym Log & HIIT — Offline workout tracker

> Offline workout tracker (iPhone/iPad app by Billy Girboux.)

- Source: https://appshunter.io/ios/app/seryz-gym-log-and-hiit/id6792676514 (this page in markdown: same URL + `.md`)
- Developer: [Billy Girboux](https://appshunter.io/developer/1876945720)
- Category: Health & Fitness
- Price: Free
- Age rating: 4+
- Requires: iOS 16.4 · 59 MB
- Languages: American English
- Released: 2026-08-12
- Data updated: 2026-08-15
- User reviews in markdown: https://appshunter.io/ios/app/seryz-gym-log-and-hiit/id6792676514/reviews.md

## What is Seryz?

Seryz is a workout log built to be used standing up, in the gym, between two sets. Logging a set takes two taps. No loading, no connection, no account.

LOG, DON'T CONFIGURE
Weight, reps, tick it off. Last session's numbers are already filled in, so most of the time you just confirm. The rest timer starts on its own and keeps counting on the Lock Screen and Dynamic Island, even with your phone in your pocket.

YOUR RECORDS, FOUND FOR YOU
Heaviest weight, more reps at the same load, best set volume: Seryz checks every completed set against your entire history and tells you right there. When you hit the top of your rep range on every set, it suggests the next load.

LIFTING AND HIIT IN ONE APP
Build your own strength routines or start from a ready-made template: Full Body, PPL, Upper / Lower, dumbbells at home, bodyweight. Plus hands-free timed circuits looping work and rest, with sound and haptic cues on every transition. Tabata, full body HIIT and express cardio are included.

206 EXERCISES, OR YOUR OWN
A catalog of 206 exercises sorted by muscle and equipment, with demo videos. Create your own, swap one mid-workout, chain two into a superset, mark a set as warm-up, drop set or to failure, log your RPE.

STATS THAT ACTUALLY HELP
Load and volume curves per exercise, estimated 1RM, weekly volume over twelve weeks, muscle split, worked-muscle map, streak of consecutive weeks, body weight tracking. Your full history stays browsable and editable after the fact.

APPLE HEALTH
Finished workouts can be saved to the Health app, and body weight imported from it. Both are optional; the app works fully without them.

ACTUALLY FREE
Every feature, for everyone, with no cap on routines, exercises or history. No subscription, no in-app purchase, no ads, no pro version.

ACTUALLY PRIVATE
Everything is stored on your phone in a local database. No account to create, no server, nothing sent anywhere, no trackers. Export your data any time as CSV or a full JSON backup, and import it back on another device.

IN YOUR LANGUAGE
English, French, Spanish, Italian, German, Portuguese. Kilos or pounds. Dark or light theme.

Seryz is not trying to bring you back every day or sell you coaching. It is a log. It is fast, it is yours, and it will stay that way.


## Version history (last 1 release)

### 1.0 — 2026-08-12

No release notes.

## More apps by Billy Girboux

- [Hello Wellington](https://appshunter.io/ios/app/hello-wellington/id6759113685)

All apps by Billy Girboux: https://appshunter.io/developer/1876945720

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-15.*