531 Strength vs Rusk
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
531 Strength
This app simplifies tracking your progress on the 5/3/1 strength training program. It calculates and displays weights, reps, and sets based on your one-rep max, allowing you to easily plan and execute your workouts. Rounding options help match available gym plates.
- Calculate 5/3/1 weights
- Track 1RM for exercises
- View cycle step weights
- Round weights to available plates
- Full overview of weights, reps, sets
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Makes it quick and easy to get a full overview of all weights, reps and sets based off your 1RM when you’re following the 5/3/1 program. - Save your current 1 RM for each of the four exercises - View calculated weights for each step in the cycle - Round the weight to match the plates you have available This app is made for people who are familiar with the structure of the 5/3/1 program and who needs simple access to the calculated weights for each exercise.
Rusk
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Simple, yet powerful. From daily tracking to detailed insights. Rusk is a habit tracker that lets you record four levels of effort. Reading, studying, moving more or building a morning routine: keep a record of the days you did a little, met your goal or went further. RECORD THE EFFORT YOU MADE Tap to cycle through goal met, above goal and went all out. Long-press to record a little effort. Missed a day of logging? Add or edit past entries in the calendar. SEE YOUR PROGRESS TAKE SHAPE Color-coded calendars and activity heatmaps make your efforts visible. Explore 7-, 30- and 90-day summaries, compare goal completion with the previous period and spot patterns by weekday. KEEP TODAY IN VIEW Home Screen widgets show today's progress, your habits and recent activity. Add today's progress to your Lock Screen, too. Tap a widget to open the app and log your effort. FIT YOUR ROUTINE • Choose the days for each habit and set reminder times • Reorder or pause habits as life changes • Pick a theme color and light or dark appearance • Export and restore your data NO ACCOUNT. NO HABIT LIMIT. Your habit records stay on your device. Start without signing up and keep recording and reviewing offline. All habit tracking features are free, with banner ads. An optional monthly subscription removes ads only. Pricing is shown before purchase. The subscription renews automatically unless canceled. Manage or cancel it in your App Store account settings. Start with one thing you want to keep doing. Let Rusk hold the small steps along the way. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://rusk-habit.netlify.app/privacy.html
Screenshots
Verdict
531 Strength and Rusk are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. 531 Strength sells 4 one-off in-app purchases and Rusk sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | 531 Strength | Rusk |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (12K ratings) — better | — |
| Positive reviews | 94.0% of reviews | — |
| Number of ratings | 12K — better | — |
| Update frequency | Every 2 months | — |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 26 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Henrik Jachobsen | Yamamoto Chihiro |
Bugs and requests
531 Strength
Reported bugs
2 issues- Rest timer stops when app is backgrounded
- Plate calculator not flexible enough
Requested features
4 requests- Ability to adjust training max separately from 1RM
- Option to track rep PRs and estimated 1RM
- Accessory exercise tracking and planning
- Sync progress across devices
Rusk
Not enough reviews yet to summarise bugs or requests.
In-app purchases
531 Strength
- Additional exercises$1.99
- Adjustable set$1.99
- Plate calculator$1.99
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- Progress log$6.99
Rusk
- Ad-Free Monthly$1.991 Month
