1RM Calculator vs TrailDog
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
1RM Calculator
Easily calculate your one-rep max (1RM) strength with this app. It supports RPE input and allows you to estimate rep maxes based on your 1RM. Track your progress by saving your 1RM history for different exercises.
- 1RM calculation with RPE
- Rep max estimation
- Save 1RM history
- Customizable exercises
- Dark theme
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Estimate your one rep max (1RM) from any set. Enter the weight and reps you lifted, add RPE if you track it, and get your estimated max in seconds. FEATURES - 1RM calculator with optional RPE: reps left in the tank are counted, so 10 reps at RPE 7 is treated like a 13-rep max - Transparent formulas: your estimate is the average of Epley, Brzycki (up to 12 reps), Wathan, and Mayhew - Estimated rep maxes from 2 to 12 reps, each shown as a percentage of your 1RM, for planning working sets - Save results to your history by exercise, including your own custom exercises - Edit or backdate saved records - Export your history as CSV - kg or lbs, light or dark theme - 9 languages - No account needed: your records stay on your device PRO - 1RM progress chart for each exercise - Rep max table with your best recorded set for each rep count - No ads Pro is available as a monthly or yearly subscription, or as a one-time lifetime purchase. Subscriptions renew automatically until canceled in your store account settings. Your 1RM is an estimate, not a tested max. Estimates are most reliable at lower reps. Terms: https://1rm.workoutwise.app/legal/terms/ Privacy Policy: https://1rm.workoutwise.app/legal/privacy-policy/
TrailDog
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TrailDog records your mountain bike rides and scores them.
Screenshots
Verdict
The clearest difference is in-app purchases: TrailDog at none against 1RM Calculator's 3. TrailDog also leads on update cadence (every 6 days vs every 4 months). 1RM Calculator's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 26.0). On price and ads 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. 1RM Calculator sells 3 in-app purchases, starting at $1.99 per month. TrailDog asks for nothing beyond the download.
1RM Calculator ships an update every 4 months, TrailDog every 6 days. The most recent releases landed on October 25, 2026 and October 1, 2026 respectively.
| Parameter | 1RM Calculator | TrailDog |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (126 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 126 — better | — |
| Update frequency | Every 4 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 28 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Yuri Koshiishi | JACK OLIVER MECKLENBURGH |
In-app purchases
1RM Calculator
- 1 Rep Max Pro Monthly$1.991 Month
- 1 Rep Max Pro Annual$9.991 Year
- 1 Rep Max Pro Lifetime$29.99
TrailDog
No in-app purchases
