# PR Tracker vs CRS Calculator

The clearest difference is update cadence: CRS Calculator at every 10 days against PR Tracker's monthly. CRS Calculator also leads on iOS requirement (15.1 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PR Tracker sells 1 one-off in-app purchase and CRS Calculator sells 12 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

PR Tracker ships an update monthly, CRS Calculator every 10 days. The most recent releases landed on October 16, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | PR Tracker | CRS Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 10 days** |
| Size | 4 MB | 57 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [小康 刘](https://appshunter.io/developer/438044743) | [Charles Edward Robin](https://appshunter.io/developer/1803038517) |

## What reviewers say

### PR Tracker

[App page](https://appshunter.io/ios/app/pr-tracker/id6760808223)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | one-time |


### CRS Calculator

[App page](https://appshunter.io/ios/app/crs-calculator-pr-buddy/id6770178397)

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

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PR Buddy Pro Weekly | $5.99 | per 7 days |
| PR Buddy Pro Monthly | $5.99 | per month |
| PR Buddy Pro - Weekly | $5.99 | per 7 days |
| PR Buddy Pro Monthly | $5.99 | per month |
| PR Buddy Pro Monthly | $7.99 | per month |
| PR Buddy Pro - Monthly | $7.99 | per month |
| PR Buddy Pro - Yearly | $24.99 | per year |
| PR Buddy Pro Yearly | $29.99 | per year |
| PR Buddy Pro Lifetime | $9.99 | one-time |
| PR Buddy Pro - Lifetime | $19.99 | one-time |
| PR Buddy Pro Lifetime | $19.99 | one-time |
| PR Buddy Pro - Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is PR Tracker free?

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

### Is CRS Calculator free?

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

### Do PR Tracker or CRS Calculator have ads?

Neither PR Tracker nor CRS Calculator shows ads.

### Which is updated more often, PR Tracker or CRS Calculator?

PR Tracker ships an update monthly, and CRS Calculator every 10 days. Most recently, PR Tracker was updated on October 16, 2026 and CRS Calculator on October 17, 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.*