Apps by Tatsumi Yamamoto
Simple Workout Log, Gym, 1RM app icon

Health & Fitness

Simple Workout Log, Gym, 1RM

Tatsumi Yamamoto

Free download In-app purchases unconfirmed
Open on Apple

About this app

Log a set and get back to lifting. Zap is a fast, offline strength-training log that works without an account or cloud sync. Key features • Log weight and reps quickly • View your previous session while adding today’s sets • Set an exercise-specific rest timer • See every training day on a calendar • Analyze total sets, volume, frequency, and body-part balance • Track total volume, estimated 1RM, and personal records • Add and edit custom exercises and body parts • Switch between kg and lb • Show age, biological sex, height, and weight from Apple Health in your iPhone profile Private by design • All workout data stays on your device • No account, ads, or cloud sync • Log, review, and analyze workouts without an internet connection • Usage statistics sharing can be turned off anytime in Settings Zap is built for lifters who want fewer taps, less waiting, and more focus on training. Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Latest release

What’s New

Version 1.0.11 Sep 11, 2026

• View exercise progress charts directly from the set entry screen to check your progress while logging your workout. • Collapse the rest timer to keep the input fields in view during your break. • Filter training programs by equipment to find options that match what you use. • Find the exercise creation button more easily, with improved placement in the exercise picker. • Enjoy a clearer home screen layout. We also fixed flickering in the body weight display when switching dates.

Audience growth

Ratings growth

Steady
7-day gain +0
Ratings / day 0.0
30-day gain +0
US rating-count history
0 ratings
0 Sep 13, 2026 · 0 ratings Sep 13, 2026

Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

Price tracking

Price intelligence

1 captured event
Current Free
Historical low Free
Paid → free 0×
Price history
Current Free
Free Sep 13, 2026 · Free Sep 13, 2026

First snapshot captured. The trend line starts after the next crawler price observation.

  1. First observed Sep 13, 2026 · 5:57 PM Free

Screenshots

Simple Workout Log, Gym, 1RM iPhone screenshotSimple Workout Log, Gym, 1RM iPhone screenshotSimple Workout Log, Gym, 1RM iPhone screenshotSimple Workout Log, Gym, 1RM iPhone screenshotSimple Workout Log, Gym, 1RM iPhone screenshotSimple Workout Log, Gym, 1RM iPhone screenshot