# Spool Ethanol Analyzer (Watch) vs My Flasher US

The clearest difference is iOS requirement: Spool Ethanol Analyzer (Watch) at 13.0 against My Flasher US's 15.4. On price, ads, in-app purchases and device support 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 | Spool Ethanol Analyzer (Watch) | My Flasher US |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (7 ratings)](https://appshunter.io/ios/app/my-flasher-us/id6757482466/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 9 days |
| Monetization | — | Free |
| Size | 1 MB | 96 MB |
| Requires iOS | **13.0** | 15.4 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ajay Rajeev](https://appshunter.io/developer/1418992095) | [SwitchOver Inc.](https://appshunter.io/developer/1859933147) |

## What reviewers say

### Spool Ethanol Analyzer (Watch)

[App page](https://appshunter.io/ios/app/spool-ethanol-analyzer-watch/id1531053194)

**In-app purchases:** none


### My Flasher US

[App page](https://appshunter.io/ios/app/my-flasher-us/id6757482466)

This app allows users to tune and optimize their car's ECU through a connected plug-in dongle. It offers features like reading/writing ECU data, seamless dealer communication, and automatic vehicle identification for a personalized tuning experience.

**Highlights:** Read & Write ECU Data, Seamless Dealer Communication, Automatic Vehicle Identification, Secure and Easy-to-Use Interface, ECU Tuning and Optimization

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Spool Ethanol Analyzer (Watch) free?

Spool Ethanol Analyzer (Watch) is free to download, with no in-app purchases.

### Is My Flasher US free?

My Flasher US is free to download, with no in-app purchases.

### Do Spool Ethanol Analyzer (Watch) or My Flasher US have ads?

Neither Spool Ethanol Analyzer (Watch) nor My Flasher US shows ads.

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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.*