# One Rep Max vs RXTime Pro

The clearest difference is in-app purchases: RXTime Pro at none against One Rep Max's 3. RXTime Pro also leads on ads (none vs shown). One Rep Max's advantage is update cadence (every 6 days vs monthly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. One Rep Max sells 3 in-app purchases, starting at $2.99 per month. RXTime Pro asks for nothing beyond the download.

One Rep Max ships an update every 6 days, RXTime Pro monthly. The most recent releases landed on October 23, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | One Rep Max | RXTime Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (185 ratings)](https://appshunter.io/ios/app/one-rep-max-1rm-calculator/id950621710/reviews)** | — |
| Number of ratings | **185** | — |
| Positive reviews | 58.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 days** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 52 MB | 24 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Charles Vanderhoff](https://appshunter.io/developer/950621709) | [jose leonardo paez salgado](https://appshunter.io/developer/6794217760) |

## What reviewers say

### One Rep Max

[App page](https://appshunter.io/ios/app/one-rep-max-1rm-calculator/id950621710)

Safely estimate your maximum lift potential for various strength exercises using scientific formulas. Track your progress visually, set goals, and fine-tune estimates with perceived exertion. Ideal for powerlifters, CrossFit athletes, and strength enthusiasts.

**Highlights:** Precise 1RM calculations with 7 scientific formulas, RPE integration for fine-tuned estimates, Custom exercise tracking for any lift, Visual progress graphs, Percentage charts for training, Goal setting and progress monitoring

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1RM Pro Monthly | $2.99 | per month |
| 1RM Pro Annual | $19.99 | per year |
| 1RM Pro Lifetime | $49.99 | one-time |

**What reviewers like**

- 👍 Easy to use interface
- 📊 Tracks progress with charts
- ➕ Plate calculator bonus feature
- 📈 Supports multiple 1RM formulas
- 💪 Helpful for tracking RMs

**What reviewers complain about**

- 💰 Subscription required for features
- 💸 Features moved behind paywall
- 😩 Useless without subscription
- 🚫 Basic features now paid
- 💸 High subscription cost

**Reported bugs**

- Features behind paywall
- Forced ads
- Deleted lifting history
- Lost all logs with update
- Weight limit restriction

**Requested features**

- Allow editing of logs (date/time)
- Manual entry for weight preferred over slider
- Include different 1RM formulas (Epley, Brzycki)
- Ability to create custom graphs
- Fix weight limit restriction


### RXTime Pro

[App page](https://appshunter.io/ios/app/rxtime-pro/id6796142449)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is One Rep Max free?

One Rep Max is free to download, with in-app purchases available.

### Is RXTime Pro free?

RXTime Pro is free to download, with no in-app purchases.

### Do One Rep Max or RXTime Pro have ads?

One Rep Max shows ads; RXTime Pro does not.

### Which is updated more often, One Rep Max or RXTime Pro?

One Rep Max ships an update every 6 days, and RXTime Pro monthly. Most recently, One Rep Max was updated on October 23, 2026 and RXTime Pro on October 11, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*