# TMP DVR II vs TrafoCalc

The clearest difference is price: TMP DVR II at Free against TrafoCalc's $0.99. TMP DVR II also leads on iOS requirement (13.0 vs 18.2). TrafoCalc's advantage is update cadence (every 9 days vs every 8 months). On ads, in-app purchases and device support there is nothing between them.

TMP DVR II is free to download; TrafoCalc costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

TMP DVR II ships an update every 8 months, TrafoCalc every 9 days. The most recent releases landed on September 21, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | TMP DVR II | TrafoCalc |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 9 days** |
| Size | 106 MB | 4 MB |
| Requires iOS | **13.0** | 18.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Guangzhou Ultronix Products Ltd.](https://appshunter.io/developer/1486289121) | [Mohd Dahnial Ismail](https://appshunter.io/developer/1868973164) |

## What reviewers say

### TMP DVR II

[App page](https://appshunter.io/ios/app/tmp-dvr-ii/id1659597979)

**In-app purchases:** none


### TrafoCalc

[App page](https://appshunter.io/ios/app/trafocalc/id6757797482)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TMP DVR II free?

TMP DVR II is free to download, with no in-app purchases.

### Is TrafoCalc free?

TrafoCalc costs $0.99, with no in-app purchases.

### Do TMP DVR II or TrafoCalc have ads?

Neither TMP DVR II nor TrafoCalc shows ads.

### Which is updated more often, TMP DVR II or TrafoCalc?

TMP DVR II ships an update every 8 months, and TrafoCalc every 9 days. Most recently, TMP DVR II was updated on September 21, 2026 and TrafoCalc on September 8, 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.*