# Rebel Cactus Tracker vs Biddle

The clearest difference is update cadence: Rebel Cactus Tracker at every 6 months against Biddle's every 38 months. Biddle's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Rebel Cactus Tracker ships an update every 6 months, Biddle every 38 months. The most recent releases landed on October 9, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Rebel Cactus Tracker | Biddle |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 38 months |
| Size | 181 MB | 165 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hallofo bv](https://appshunter.io/developer/1532585797) | [BIDDLE AIR SYSTEMS LIMITED](https://appshunter.io/developer/1605578286) |

## What reviewers say

### Rebel Cactus Tracker

[App page](https://appshunter.io/ios/app/rebel-cactus-tracker/id1532585555)

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

**In-app purchases:** none


### Biddle

[App page](https://appshunter.io/ios/app/biddle/id1605578104)

**In-app purchases:** none


## Frequently asked questions

### Is Rebel Cactus Tracker free?

Rebel Cactus Tracker is free to download, with no in-app purchases.

### Is Biddle free?

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

### Do Rebel Cactus Tracker or Biddle have ads?

Neither Rebel Cactus Tracker nor Biddle shows ads.

### Which is updated more often, Rebel Cactus Tracker or Biddle?

Rebel Cactus Tracker ships an update every 6 months, and Biddle every 38 months. Most recently, Rebel Cactus Tracker was updated on October 9, 2026 and Biddle on September 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.*