# Radius PPM vs TrackSub Subscription Tracker

The clearest difference is in-app purchases: Radius PPM at none against TrackSub Subscription Tracker's 3. TrackSub Subscription Tracker's advantage is update cadence (every 6 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. TrackSub Subscription Tracker sells 3 in-app purchases, starting at $1.00 per month. Radius PPM asks for nothing beyond the download.

Radius PPM ships an update every 2 months, TrackSub Subscription Tracker every 6 days. The most recent releases landed on October 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Radius PPM | TrackSub Subscription Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Size | 43 MB | 46 MB |
| Requires iOS | **14** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Radius Synergies International Private Limited](https://appshunter.io/developer/880536127) | [Bidya Bhushan Bibhu](https://appshunter.io/developer/1866222319) |

## What reviewers say

### Radius PPM

[App page](https://appshunter.io/ios/app/radius-ppm/id1662983744)

**Features:** macOS Compatibility

**In-app purchases:** none


### TrackSub Subscription Tracker

[App page](https://appshunter.io/ios/app/tracksub-subscription-tracker/id6757342390)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $1.00 | per month |
| Pro Yearly | $11.00 | per year |
| TrackSub Pro Lifetime | $3.99 | one-time |


## Frequently asked questions

### Is Radius PPM free?

Radius PPM is free to download, with no in-app purchases.

### Is TrackSub Subscription Tracker free?

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

### Do Radius PPM or TrackSub Subscription Tracker have ads?

Neither Radius PPM nor TrackSub Subscription Tracker shows ads.

### Which is updated more often, Radius PPM or TrackSub Subscription Tracker?

Radius PPM ships an update every 2 months, and TrackSub Subscription Tracker every 6 days. Most recently, Radius PPM was updated on October 4, 2026 and TrackSub Subscription Tracker on October 31, 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.*