531 Strength vs LiftLedger
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.
LiftLedger
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LiftLedger is a focused training log for people who want to follow body composition and strength progress without the noise of a full workout-planning platform. Record body weight and circumference measurements, then review long-term changes in clear charts. LiftLedger can estimate body fat from the U.S. Navy circumference formulas for male and female profiles. Every body-fat result is clearly labeled as an estimate and is not a medical measurement. Log squat, bench press, and deadlift work using multiple weights in the same workout. Each entry can include weight, repetitions, sets, optional RPE, and notes. LiftLedger calculates training volume and an estimated 1RM from eligible 1-12 repetition records, then identifies personal records dynamically as your history changes. Use the Training Weight Calculator to view reference 1-12RM weights, percentages of a reference 1RM, and practical plate-loading increments in metric or imperial units. Results are estimates for training reference, not guarantees of performance. Stay oriented over time with: - Body and strength trends - Goal progress for body and strength metrics - Automatically generated milestones - Metric and imperial units - English and Simplified Chinese - Local JSON backup and restore - CSV exports for body and strength records Your profile, measurements, training records, and goals are stored locally on your device. LiftLedger does not require an account and does not include advertising, analytics, or third-party SDKs. Files are shared only when you explicitly export them to a destination you choose. LiftLedger 1.0 is intentionally limited to body measurements plus squat, bench press, and deadlift tracking. It does not provide medical measurements, automated training plans, AI coaching, a general exercise library, HealthKit integration, or cloud sync.
Screenshots
Verdict
The clearest difference is in-app purchases: LiftLedger at none against 531 Strength's 4. LiftLedger also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 2 months). On price, device support and iOS requirement there is nothing between them.
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. LiftLedger asks for nothing beyond the download.
531 Strength ships an update every 2 months, LiftLedger every 3 weeks. The most recent releases landed on November 12, 2026 and October 21, 2026 respectively.
| Parameter | 531 Strength | LiftLedger |
|---|---|---|
| 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 | Every 3 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 26 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Henrik Jachobsen | 永强 汪 |
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
LiftLedger
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
LiftLedger
No in-app purchases









