# Ultra Boost Piezo vs DEE

The clearest difference is device support: Ultra Boost Piezo at 2 against DEE's —. Ultra Boost Piezo also leads on iOS requirement (11.0 vs 15.6). On price and in-app purchases there is nothing between them.

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

## The numbers

| Metric | Ultra Boost Piezo | DEE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (4 ratings)](https://appshunter.io/ios/app/ultra-boost-piezo/id1579264665/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Fortnightly | — |
| Monetization | Free | — |
| Size | 80 MB | 13 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 17+ |
| Developer | [ECU=SHOP](https://appshunter.io/developer/1389703440) | [D.T.C. ENTERPRISE PUBLIC COMPANY LIMITED](https://appshunter.io/developer/1606075357) |

## What reviewers say

### Ultra Boost Piezo

[App page](https://appshunter.io/ios/app/ultra-boost-piezo/id1579264665)

This application allows users to wirelessly adjust fuel supply and monitor engine performance metrics like RPM, boost, and speed via a mobile phone. It features an AI mode for automatic operation adjustments and offers a tangible price point for increased horsepower.

**Highlights:** Wireless fuel adjustment, RPM and boost display, AI automatic operation mode, Monitor oil pressure, GPS speed display, Weather and air pressure data

**Features:** macOS Compatibility

**In-app purchases:** none


### DEE

[App page](https://appshunter.io/ios/app/dee-track/id6474902598)

**In-app purchases:** none


## Frequently asked questions

### Is Ultra Boost Piezo free?

Ultra Boost Piezo is free to download, with no in-app purchases.

### Is DEE free?

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

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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.*