# Gym Log Workout Tracker PRZone vs SadBox

The clearest difference is update cadence: Gym Log Workout Tracker PRZone at every 3 days against SadBox's every 4 weeks. Gym Log Workout Tracker PRZone also leads on iOS requirement (16.2 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Gym Log Workout Tracker PRZone sells 3 in-app purchases, starting at $3.99 per month and SadBox sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Gym Log Workout Tracker PRZone ships an update every 3 days, SadBox every 4 weeks. The most recent releases landed on September 22, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | Gym Log Workout Tracker PRZone | SadBox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/gym-log-workout-tracker-przone/id6503482570/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 4 weeks |
| Monetization | Free | — |
| Size | 84 MB | 14 MB |
| Requires iOS | **16.2** | 18.0 |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [AppWrapp](https://appshunter.io/developer/1733339396) | [俊辰 黎](https://appshunter.io/developer/1813083979) |

## What reviewers say

### Gym Log Workout Tracker PRZone

[App page](https://appshunter.io/ios/app/gym-log-workout-tracker-przone/id6503482570)

Effortlessly log barbell lifts and cardio workouts, track personal records, and analyze progressive overload. Build custom routines, add unique exercises, and receive instant PR alerts to fuel your strength and cardio journey.

**Highlights:** Strength & Cardio Log, Custom Routine Templates, Custom Exercises, Exercise Goals & PR Tracking, Comprehensive Statistics, Instructional Tips

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $3.99 | per month |
| Annual Plan | $24.99 | per year |
| Przone Lifetime | $59.99 | one-time |


### SadBox

[App page](https://appshunter.io/ios/app/sadbox/id6749219213)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Membership | $1.99 | per month |
| Quarterly Membership | $4.99 | per 3 months |
| Annual Membership | $8.99 | per year |
| Lifetime Membership | $12.99 | one-time |


## Frequently asked questions

### Is Gym Log Workout Tracker PRZone free?

Gym Log Workout Tracker PRZone is free to download, with in-app purchases available.

### Is SadBox free?

SadBox is free to download, with in-app purchases available.

### Do Gym Log Workout Tracker PRZone or SadBox have ads?

Neither Gym Log Workout Tracker PRZone nor SadBox shows ads.

### Which is updated more often, Gym Log Workout Tracker PRZone or SadBox?

Gym Log Workout Tracker PRZone ships an update every 3 days, and SadBox every 4 weeks. Most recently, Gym Log Workout Tracker PRZone was updated on September 22, 2026 and SadBox on September 7, 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.*