# Weight Log & PR Tracker - Rivu — 1RM calculator & strength log

> 1RM calculator & strength log (iPhone/iPad app by Ko Futamata.)

- Source: https://appshunter.io/ios/app/weight-log-and-pr-tracker-rivu/id6794801259 (this page in markdown: same URL + `.md`)
- Developer: [Ko Futamata](https://appshunter.io/developer/1886576840)
- Category: Health & Fitness, Lifestyle
- Price: Free
- Age rating: 4+
- Requires: iOS 15.1 · 35 MB
- Languages: American English
- Released: 2026-07-29
- Data updated: 2026-08-25
- User reviews in markdown: https://appshunter.io/ios/app/weight-log-and-pr-tracker-rivu/id6794801259/reviews.md

## What is Weight Log & PR Tracker?

Rivu is a training log built for one thing only: strength training. No cardio tracking, no all-purpose fitness dashboard — just weight, reps, and progress, done beautifully.

If you want a clean, fast way to log your lifts and actually see your progress, Rivu is for you.

WHY RIVU

Body-Map Home Screen
An abstract body silhouette shades in by muscle group based on your last 4 weeks of volume — so you can see at a glance where you've been training hard, and where you haven't.

Automatic PR Detection
Every set you log is checked against your full history using an estimated 1RM (Epley formula) and max weight — so personal records are always detected automatically, never manually tracked.

Exercise Trend Graphs
Switch between estimated 1RM, max weight, total volume, and total reps to see exactly how each lift is progressing over time.

Built-In Rest Timer
The rest timer starts the moment you check off a set, so you can stay in rhythm without fumbling for a stopwatch.

Shareable Workout Cards
After every workout, generate a clean, story-ready image with your total volume, stats, and any new PRs — ready to share in one tap.

History Calendar
Look back at your training days on a calendar view, and filter by muscle group to see exactly when you trained what.

Simple Exercise Picker
Your most-used exercises surface automatically. Can't find a lift? Add your own custom exercise in seconds.

GOOD TO KNOW
- Rivu is supported by ads (AdMob)
- No subscriptions or in-app purchases at this time
- No cloud sync — your data stays on your device

Consistency beats intensity. Log it, see it, keep going — with Rivu.


## Version history (last 4 releases)

### 1.1.1 — 2026-08-16

1.1.1
Updated the home screen body diagram.
• Each muscle group now shows the tracked exercise, your prior-best → latest estimated 1RM, and growth rate
• Tap an exercise name to change which exercise is tracked for that muscle group
• If you haven't picked one, we automatically use the first exercise you ever logged for that group

### 1.1.0 — 2026-08-14

1.1.0
• Adding an exercise now presets all of last session's sets (weight & reps) automatically
• Adjusted placeholder colors so hints are easier to distinguish from values you've entered
• The Finish Workout button is now available next to the title and at the bottom of the screen, in a new blue color
• Redesigned the bottom tab bar (Home / Analytics / History / Settings) with clean new icons

### 1.0.1 — 2026-08-06

1.0.1 add notify sound when rest timer finish, export and import rainning log

### 1.0 — 2026-07-30

No release notes.

## More apps by Ko Futamata

- [Routine Habit Streak - Habiru](https://appshunter.io/ios/app/routine-habit-streak-habiru/id6760871912)
- [へらしぴ - 冷蔵庫レシピで食費節約](https://appshunter.io/ios/app/id6761013350)

All apps by Ko Futamata: https://appshunter.io/developer/1886576840

## Related topics

[weight log free](https://appshunter.io/ios/topics/weight-log-free)

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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 2026-08-25.*