# CnR M.A.R.S. vs Bluetooth Cam

The clearest difference is in-app purchases: CnR M.A.R.S. at none against Bluetooth Cam's 3. CnR M.A.R.S. also leads on device support (3 vs 1) and iOS requirement (11.0 vs 16.0). Bluetooth Cam's advantage is update cadence (weekly vs every 38 months). On price and ads there is nothing between them.

Both are free to download. Bluetooth Cam sells 3 one-off in-app purchases. CnR M.A.R.S. asks for nothing beyond the download.

CnR M.A.R.S. ships an update every 38 months, Bluetooth Cam weekly. The most recent releases landed on September 9, 2026 and August 22, 2026 respectively.

## The numbers

| Metric | CnR M.A.R.S. | Bluetooth Cam |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 38 months | **Weekly** |
| Size | 17 MB | 38 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Allerup.Com AS](https://appshunter.io/developer/1465876722) | [MediaWave LTD.](https://appshunter.io/developer/924856469) |

## What reviewers say

### CnR M.A.R.S.

[App page](https://appshunter.io/ios/app/cnr-mars/id1243473878)

**In-app purchases:** none


### Bluetooth Cam

[App page](https://appshunter.io/ios/app/bluetooth-cam/id6737751451)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30 Coins | $0.99 | one-time |
| 100 Coins | $2.99 | one-time |
| 300 Coins | $9.99 | one-time |


## Frequently asked questions

### Is CnR M.A.R.S. free?

CnR M.A.R.S. is free to download, with no in-app purchases.

### Is Bluetooth Cam free?

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

### Do CnR M.A.R.S. or Bluetooth Cam have ads?

Neither CnR M.A.R.S. nor Bluetooth Cam shows ads.

### Which is updated more often, CnR M.A.R.S. or Bluetooth Cam?

CnR M.A.R.S. ships an update every 38 months, and Bluetooth Cam weekly. Most recently, CnR M.A.R.S. was updated on September 9, 2026 and Bluetooth Cam on August 22, 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.*