# Rust Strength — Know what weight to lift next

> Know what weight to lift next (iPhone/iPad app by RHETT JOHN LINDELL.)

- Source: https://appshunter.io/ios/app/rust-strength/id6811736131 (this page in markdown: same URL + `.md`)
- Developer: [RHETT JOHN LINDELL](https://appshunter.io/developer/6811736133)
- Category: Health & Fitness, Sports
- Price: Free
- Age rating: 12+
- Requires: iOS 16.4 · 38 MB
- Languages: American English
- Released: 2026-10-02
- Data updated: 2026-10-06
- User reviews in markdown: https://appshunter.io/ios/app/rust-strength/id6811736131/reviews.md

## What is Rust Strength?

Rust Strength answers the question every lifter has mid-workout: how much should I put on the bar for the next set?

Log a set with the weight, the reps, and how hard it felt on the RPE scale. Rust Strength works out an estimated one-rep max from that, then suggests a weight for your next set aimed at reaching failure inside the rep range you chose. Every suggestion is rounded to a weight the machine in front of you can actually be set to, because a recommendation of 147 lb is useless on a stack that moves in tens.

BUILT FOR TRAINING IN DIFFERENT GYMS

Machines are not consistent. A chest press at one gym does not feel like a chest press at another, and plate-loaded, selectorised and cable setups all label weight differently. Rust Strength records which machine each set was performed on and rounds to that machine's own increment, so a session in a hotel gym does not corrupt what it knows about your home gym.

WHAT YOU GET

Autoregulated weight suggestions after every set, with a plain-English reason for each one.
Estimated one-rep max per exercise, updated as you train.
Sets grouped by exercise, so five sets of bench read as one block.
Workout presets — save "Push Day 1" once and start it pre-loaded with every exercise.
A workout generator that builds a session from the equipment you actually have, prioritising the muscles you have not trained this week.
A live workout timer, plus totals for time, volume, reps and sets.
Activity tracking for runs, sports and cardio machines, timed live or entered by hand.
A calendar for planning sessions ahead, logging rest days, and reviewing what you have done.
A body chart showing which muscle groups you have and have not trained this week.
A rest timer between sets, set to whatever length you want, that starts on its own when you save a set and can alert you when rest is over, even with your phone locked.
Tiered trophies across nine ranks, from Wood to Legend, for the main lifts, calisthenics, and lifetime weight moved.
XP and levels earned from the training you log, unlocking badges as you climb.
A feed of your friends' recent sessions that you can react to, and profiles showing their streaks, levels and progress.

DESIGNED TO ASK FOR LITTLE

No ads. No analytics. No tracking. No third-party advertising SDKs. Rust Strength asks for an email address and a password so your training syncs to your devices, and collects nothing it does not need to run. Your bodyweight is optional. Friends see a summary of a session, never the individual sets, and you can switch feed sharing off entirely. You can export everything you have logged, and delete your account and all its data from inside the app at any time.

IMPORTANT

Rust Strength is a training log, not medical or professional coaching advice. It suggests weights from the numbers you give it and knows nothing about your health, injuries, or experience. Warm up, use your own judgement, and stop if something hurts. Talk to a doctor before starting a new training programme.

Privacy Policy: https://lindellrhett-gif.github.io/rust-strength/privacy.html
Terms of Service: https://lindellrhett-gif.github.io/rust-strength/terms.html
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## Version history (last 1 release)

### 1.0 — 2026-10-02

No release notes.

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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 2026-10-06.*