# MRF CPO vs PTDevices

The clearest difference is update cadence: MRF CPO at every 3 weeks against PTDevices's every 2 months. 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.

MRF CPO ships an update every 3 weeks, PTDevices every 2 months. The most recent releases landed on September 17, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | MRF CPO | PTDevices |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/ptdevices/id6450903810/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | — | Free |
| Size | 42 MB | 49 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [MRF Geosystems Corp.](https://appshunter.io/developer/1022031549) | [Michael VandeBeld](https://appshunter.io/developer/1475543588) |

## What reviewers say

### MRF CPO

[App page](https://appshunter.io/ios/app/mrf-cpo/id1616653256)

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

**In-app purchases:** none


### PTDevices

[App page](https://appshunter.io/ios/app/ptdevices/id6450903810)

Monitor your PTDevices tank levels and receive alerts directly from your mobile device. Easily set up new devices and view historical data. Connect your devices online through your home WiFi with a simple step-by-step process.

**Highlights:** Monitor tank levels, Setup alerts, View level history, Setup new devices, Connect devices via WiFi

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MRF CPO free?

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

### Is PTDevices free?

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

### Do MRF CPO or PTDevices have ads?

Neither MRF CPO nor PTDevices shows ads.

### Which is updated more often, MRF CPO or PTDevices?

MRF CPO ships an update every 3 weeks, and PTDevices every 2 months. Most recently, MRF CPO was updated on September 17, 2026 and PTDevices on September 15, 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.*