# Ultra Boost Piezo vs Defect Tracking

The clearest difference is iOS requirement: Ultra Boost Piezo at 11.0 against Defect Tracking's 16.0. On price, update cadence, ads 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.

Ultra Boost Piezo ships an update fortnightly, Defect Tracking every 3 weeks. The most recent releases landed on June 6, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Ultra Boost Piezo | Defect Tracking |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (3 ratings)](https://appshunter.io/ios/app/ultra-boost-piezo/id1579264665/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free | — |
| Size | 80 MB | 32 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [ECU SHOP 1 COMPANY LIMITED](https://appshunter.io/developer/1389703440) | [AP (THAILAND) PUBLIC COMPANY LIMITED](https://appshunter.io/developer/1049624952) |

## 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


### Defect Tracking

[App page](https://appshunter.io/ios/app/defect-tracking/id6502435987)

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

**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 Defect Tracking free?

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

### Do Ultra Boost Piezo or Defect Tracking have ads?

Neither Ultra Boost Piezo nor Defect Tracking shows ads.

### Which is updated more often, Ultra Boost Piezo or Defect Tracking?

Ultra Boost Piezo ships an update fortnightly, and Defect Tracking every 3 weeks. Most recently, Ultra Boost Piezo was updated on June 6, 2026 and Defect Tracking on September 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.*