# Castra App vs On Lifting

The clearest difference is update cadence: Castra App at weekly against On Lifting's every 3 weeks. Castra App also leads on iOS requirement (16.6 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Castra App sells 4 in-app purchases, starting at $4.99 per month and On Lifting sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Castra App ships an update weekly, On Lifting every 3 weeks. Both last shipped on October 30, 2026.

## The numbers

| Metric | Castra App | On Lifting |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (7 ratings)](https://appshunter.io/ios/app/on-lifting-workout-tracker/id6737965150/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 66 MB | 31 MB |
| Requires iOS | **16.6** | 18.0 |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [CASTRA APP OOD](https://appshunter.io/developer/1761241022) | [Joy of Dev AB](https://appshunter.io/developer/1778609409) |

## What reviewers say

### Castra App

[App page](https://appshunter.io/ios/app/castra-app/id6612004431)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Athlete Subscription | $4.99 | per month |
| Coach Monthly Subscription | $29.99 | per month |
| Athlete Annual Subscription | $49.99 | per year |
| Coach Yearly Subscription | $269.99 | per year |


### On Lifting

[App page](https://appshunter.io/ios/app/on-lifting-workout-tracker/id6737965150)

This private workout log allows users to track strength training progress with a focus on speed and privacy. It offers detailed exercise tracking, routine management, and insightful progress charts, all while keeping data offline and on your device.

**Highlights:** Private, offline workout logging, Fast logging with smart defaults, Extensive exercise library with videos, Customizable routines and set types, Detailed progression charts and insights, Apple Watch and widget integration, CSV export and Apple Health integration

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| On Lifting - Monthly | $1.99 | per month |
| On Lifting - Yearly | $14.99 | per year |


## Frequently asked questions

### Is Castra App free?

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

### Is On Lifting free?

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

### Do Castra App or On Lifting have ads?

Neither Castra App nor On Lifting shows ads.

### Which is updated more often, Castra App or On Lifting?

Castra App ships an update weekly, and On Lifting every 3 weeks. Most recently, Castra App was updated on October 30, 2026 and On Lifting on October 30, 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.*