# Spool Ethanol Analyzer vs CANBOXPRO

The clearest difference is rating: Spool Ethanol Analyzer at 4.1 against CANBOXPRO's 3.0. Spool Ethanol Analyzer also leads on ratings volume (14 vs 2) and iOS requirement (11.0 vs 14.0). CANBOXPRO's advantage is update cadence (every 8 days vs every 13 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Spool Ethanol Analyzer holds the better App Store score, 4.1 against 3.0. That said, the two scores are not equally well evidenced: Spool Ethanol Analyzer has 14 ratings behind it against 2, so its average is the more settled of the two.

Spool Ethanol Analyzer ships an update every 13 months, CANBOXPRO every 8 days. The most recent releases landed on October 4, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Spool Ethanol Analyzer | CANBOXPRO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (14 ratings)](https://appshunter.io/ios/app/spool-ethanol-analyzer/id1418992096/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/canboxpro/id6473891966/reviews) |
| Number of ratings | **14** | 2 |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 8 days** |
| Monetization | Free | Free |
| Size | 9 MB | 9 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ajay Rajeev](https://appshunter.io/developer/1418992095) | [John Visconti](https://appshunter.io/developer/1182909054) |

## What reviewers say

### Spool Ethanol Analyzer

[App page](https://appshunter.io/ios/app/spool-ethanol-analyzer/id1418992096)

This application connects to a wireless sensor kit to measure in-tank ethanol content and fuel temperature. It also features a mixing ratio calculator that can be used independently of the sensor hardware.

**Highlights:** Connects to Spool Wireless Ethanol Sensor Kit, Measures in-tank ethanol content, Measures fuel temperature, Includes mixing ratio calculator, Uses Low energy Bluetooth protocols, Fast and reliable data

**Features:** macOS Compatibility

**In-app purchases:** none


### CANBOXPRO

[App page](https://appshunter.io/ios/app/canboxpro/id6473891966)

Wirelessly monitor your current ethanol content percentage using a compatible Continental Ethanol sensor. This application requires a specific Bluetooth module for wireless connectivity.

**Highlights:** Wireless ethanol content viewing, Compatible with Continental Ethanol sensors, Requires custom Bluetooth module, Real-time data display

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Spool Ethanol Analyzer free?

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

### Is CANBOXPRO free?

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

### Which has better reviews, Spool Ethanol Analyzer or CANBOXPRO?

Spool Ethanol Analyzer is rated higher. Spool Ethanol Analyzer averages 4.1 out of 5 from 14 ratings, while CANBOXPRO averages 3.0 from 2 ratings.

### Do Spool Ethanol Analyzer or CANBOXPRO have ads?

Neither Spool Ethanol Analyzer nor CANBOXPRO shows ads.

### Which is updated more often, Spool Ethanol Analyzer or CANBOXPRO?

Spool Ethanol Analyzer ships an update every 13 months, and CANBOXPRO every 8 days. Most recently, Spool Ethanol Analyzer was updated on October 4, 2026 and CANBOXPRO on October 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.*