# 5/3/1 Workout logger - 531

> Weightlifting logger app

Canonical page: [https://chrome-stats.com/d/id1114435690](https://chrome-stats.com/d/id1114435690)

## Overview

- **ID:** `id1114435690`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Seetha Thangarasa
- **Category:** Health & Fitness
- **Rating:** 4.80 / 5 (3,226 ratings)
- **Version:** 10.2
- **Last updated:** 2026-03-11
- **First published:** 2016-07-13
- **Size:** 22 MB
- **Data as of:** 2026-09-25
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/5-3-1-workout-logger-531/id1114435690)
- **Website:** [https://www.sarasoft.nl/five3oneios/](https://www.sarasoft.nl/five3oneios/)
- **Privacy policy:** [https://sites.google.com/site/wendler531logiosapp/privacy-policy](https://sites.google.com/site/wendler531logiosapp/privacy-policy)

## Description

The Ultimate 5/3/1 Calculator & Strength Logger helps you plan, log, and progress on 5/3/1, Beyond 5/3/1, and custom 531 cycles. It automatically calculates weights for Squat, Deadlift, Bench, and OHP, provides a Plate Calculator with Kg/Lb support and configurable bar weights, and supports popular templates for flexible progression.

Privacy-focused and gym-ready, this extension requires no subscription, registration, or ads. Features include warm-up sets, a rest timer, and Apple Health integration, plus a 3-week trial with a one-time unlock for 5/3/1 Pro and Assistance Workouts. It’s an independent calculator and log (not affiliated with Jim Wendler) designed to help serious lifters track progress with clear charts and precise plate math.

## Rankings

- #31,871 — Overall

## Review summary

Users praise the app for solid 5/3/1 support, progression tracking, and a helpful plate-loading calculator, plus timers, easy customization, and good developer support. The Apple Watch extension adds hands-free data entry. Common drawbacks across reviews include data save/reset problems, weight miscalculations across cycles, unreliable watch integration, clunky template editing, and occasional crashes or stability issues. When working well, it’s a powerful, motivating tool for 5/3/1 training, but reliability and editing ease are notable drawbacks to consider.

### Pros

- Strong 531 program support with guided progression (BBB, FSL) and steady strength gains.
- Plate loading feature that uses your real weights to tell you what to load, reducing gym math.
- Timers and organized interface with automatic 1RM adjustments help keep training progression on track.
- Apple Watch integration/extension allows data to feed from watch for hands-free tracking.
- Responsive developer support and ongoing maintenance.

### Cons

- Data saving and syncing problems: workouts can reset or fail to save after cycles.
- Weight calculations and cycle loads can be incorrect, leading to mismatched weights.
- Apple Watch integration can be unreliable: the watch doesn’t always recognize a lift or syncs poorly.
- Template editing and customization can feel clunky or require a learning curve.
- Stability issues: app can crash or randomly close during workouts.

## Similar extensions and apps

- [531 Workout Tracker](https://chrome-stats.com/d/id6760547152)
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- [Wendler Log 531](https://chrome-stats.com/d/id962162633) — 4.50 / 5
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Source: [Chrome-Stats](https://chrome-stats.com/d/id1114435690)