# ITR vs RoyPow Fish.

The clearest difference is rating: ITR at 3.5 against RoyPow Fish.'s 2.2. RoyPow Fish.'s advantage is iOS requirement (12.0 vs 16.6). On price, ratings volume, update cadence and ads there is nothing between them.

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

ITR holds the better App Store score, 3.5 against 2.2. Both are backed by a comparable volume of ratings — 2 and 5 respectively.

ITR ships an update every 2 months, RoyPow Fish. every 5 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | ITR | RoyPow Fish. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/itr-oasis/id1438468041/reviews)** | [2.2 (5 ratings)](https://appshunter.io/ios/app/roypow-fish/id6446618041/reviews) |
| Number of ratings | 2 | **5** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 20 MB | 27 MB |
| Requires iOS | 16.6 | **12.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [International Thermal Research Ltd.](https://appshunter.io/developer/1496252759) | [深圳市环宇鼎鑫科技有限公司](https://appshunter.io/developer/1639662642) |

## What reviewers say

### ITR

[App page](https://appshunter.io/ios/app/itr-oasis/id1438468041)

Remotely monitor and control your home's heating elements, including burners, electric elements, and engine preheat pumps. Manage your home's climate and ensure optimal performance from afar.

**Highlights:** Monitor heating elements, Control burners remotely, Manage electric elements, Operate engine preheat pump, Remote On/Off functionality

**Features:** macOS Compatibility

**In-app purchases:** none


### RoyPow Fish.

[App page](https://appshunter.io/ios/app/roypow-fish/id6446618041)

Monitor your battery management system (BMS) directly from your mobile device. Connect via Bluetooth to view battery status and parameters in real-time.

**Highlights:** Bluetooth connection, Battery BMS monitoring, Real-time parameter viewing, Mobile phone compatibility

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ITR free?

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

### Is RoyPow Fish. free?

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

### Which has better reviews, ITR or RoyPow Fish.?

ITR is rated higher. ITR averages 3.5 out of 5 from 2 ratings, while RoyPow Fish. averages 2.2 from 5 ratings.

### Do ITR or RoyPow Fish. have ads?

Neither ITR nor RoyPow Fish. shows ads.

### Which is updated more often, ITR or RoyPow Fish.?

ITR ships an update every 2 months, and RoyPow Fish. every 5 weeks. Most recently, ITR was updated on November 2, 2026 and RoyPow Fish. on November 3, 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.*