# Boost - Turbo Gauge (OBD-II)

> Real-time engine boost gauge using OBD-II data. (iPhone/iPad app by Matthew Grdinic.)

- Source: https://appshunter.io/ios/app/boost-turbo-gauge-obd-ii/id1202033267 (this page in markdown: same URL + `.md`)
- Developer: [Matthew Grdinic](https://appshunter.io/developer/998629862)
- Category: Utilities, Entertainment
- Price: $2.99
- Rating: 2.20/5 from 6 App Store ratings · 6 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.0 · 2 MB
- Languages: English
- Released: 2017-02-08
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/boost-turbo-gauge-obd-ii/id1202033267/reviews.md

## What is Boost?

Have a turbo or supercharged engine but no boost gauge? Boost for iOS to the rescue! 

Boost reads actual, real-time data from any valid OBD-II reader and uses Manifold Absolute Pressure (MAP) readings from your engine to create a REAL Boost Gauge.

Every turbo's different, so you can even customize the minimum and maximum displayed boost values to perfectly match your engines boost characteristics!

Boost is incredibly easy to use: Start the Boost App and plug in your OBD-II adapter. Boost will connect automatically and start reading your engines real-time data.

Boost lets you peak under the hood and see just how much that turbo chargers doing for ya!

Notes: To use this app you'll need a simple WiFi Based ELM327 compatible reader, such as this one:

https://www.amazon.com/gp/product/B00W0SDLRY/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

For best results make sure the reader uses the ISO14230-4 (KWP2000) spec.

## Key features

- Real-time boost gauge
- Reads OBD-II data
- Customizable boost values
- Easy to use interface
- Monitors turbocharger performance

## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/boost-turbo-gauge-obd-ii/id1202033267/reviews.md

### 5/5 — Works Great with my VW Golf

*2021-01-28, version 1.3*

Great clean cut simple app.  Works Great on my 2016 1.8t Jetta, 2017 1.4t Jetta, and 1.4t Golf

### 1/5 — Doesn’t work

*2020-08-05, version 1.3*

Ive been trying to get it to work and nothing downloaded a different app and boost works perfectly. Cant figure out how to get a refund? Can i please have a refund!

### 1/5 — Doesnt work at all

*2020-06-26, version 1.3*

Would like refund. Waste of money. Wont connect

### 4/5 — Needs work

*2019-01-30, version 1.2*

Cool app, works on my ecoboost, but needs a couple features to make it worth the money. Please add a peak boost display option. Maybe also a digital gauge as well. Lastly make it so the phone doesn’t dim and screen turns off after a while. I would love to recommend the app if upgraded a bit ! Thanks.

### 5/5 — Great little app

*2018-09-03, version 1.2*

Works perfectly with my turbo Jetta.

### 1/5 — Absolutely Does Not Work

*2018-05-31, version 1.2*

Keep in mind that you may have a different experience than I’ve had. But every other app that I connect to my ELM327 enabled OBD2 dongle works fine. This one, that I paid for, does not. Within the Boost app, it shows that it’s connected but the boost value does not change when I’m fully on the boost. 

Oddly, I attempted to go to the app support page for this app and that doesn’t work either. 100% disappointed in this app and regret purchasing it. 

If it’s any relevance, I tried it in both my 2010 Volkswagen CC TSI and 2010 Volkswagen Jetta.  Both cars with 0 results with Boost app and results with other compatible apps.

**Developer response:** Thank you so much for the report, and my deepest apologies for the experience you've had! 

Unfortunately not all vehicles report MAP data, which is essential for our boost calculation. It gets nerdy quick, but your OBD reader *must* respond to PID requests : `0B` For MAP and (not required) `33` for Absolute Barometric Pressure. 

If your reader, car, or both do not supply these items, the boost calculation simply cannot be done. Other codes may work in other apps, such as speed, RPM, and so on, but these are of no use for real boost calculations.

My guess is that's what's happening. 

Strangely, I have a 2017 GTI and Boost readings work as expected, so it's sometimes not even a manufacturer issue, just make, model, year, and again, our ODB ports. 

That said please do not hesitate to issue a refund request, the last thing I want is for your to be stuck with something that doesn't work with your setup. 

For my end I'll continue to work on edge cases and update the app as much as possible. 

Finally, my apologies for the support form not working, but I have to say I'm having no trouble accessing it:

https://www.rackforms.com/boost

If posible, please feel free to let me know what specific issue you had an I'll do everything I can to fix that as well. 

Thank you so much again for your feedback, and please do keep in touch if possible!

## Frequently asked questions about Boost

### What is Boost - Turbo Gauge (OBD-II)?

Boost - Turbo Gauge (OBD-II) is a utility app that displays real-time boost pressure from your vehicle's engine using an OBD-II reader. It helps you monitor your turbocharger's performance.

### How does Boost - Turbo Gauge (OBD-II) work?

The app connects to a compatible WiFi-based ELM327 OBD-II reader plugged into your car's diagnostic port. It then reads Manifold Absolute Pressure (MAP) data to display your engine's real-time boost.

### What hardware do I need to use Boost - Turbo Gauge (OBD-II)?

You will need a WiFi-based ELM327 compatible OBD-II reader. For best results, ensure the reader uses the ISO14230-4 (KWP2000) specification.

### Can I customize the boost readings in Boost - Turbo Gauge (OBD-II)?

Yes, you can customize the minimum and maximum displayed boost values to match your specific engine's boost characteristics.

### What devices is Boost - Turbo Gauge (OBD-II) compatible with?

Boost - Turbo Gauge (OBD-II) is available for iPhone, iPad, and iPod.

### What is the price of Boost - Turbo Gauge (OBD-II)?

Boost - Turbo Gauge (OBD-II) is a paid app priced at $2.99.

### How often is Boost - Turbo Gauge (OBD-II) updated?

The app was last updated on March 25, 2019, with version 1.3. It was initially released on February 8, 2017.

### What is the age rating for Boost - Turbo Gauge (OBD-II)?

Boost - Turbo Gauge (OBD-II) has an age rating of 4+, making it suitable for a wide range of users.

## Version history (last 1 release)

### 1.3 — 2019-03-25

- UI Update.

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## More apps by Matthew Grdinic

- [SkipCast: Podcast Player](https://appshunter.io/ios/app/skipcast-podcast-player/id998629863)
- [Quarter Mile Pro](https://appshunter.io/ios/app/quarter-mile-pro/id1320690652)

All apps by Matthew Grdinic: https://appshunter.io/developer/998629862

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*