# E85 Content vs Art Sentry

The clearest difference is update cadence: Art Sentry at every 3 months against E85 Content's every 17 months. E85 Content's advantage is iOS requirement (12.0 vs 14.0). 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.

E85 Content ships an update every 17 months, Art Sentry every 3 months. The most recent releases landed on September 22, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | E85 Content | Art Sentry |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (12 ratings)](https://appshunter.io/ios/app/e85-content/id1252861855/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 8 MB | 6 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Delicious Tuning](https://appshunter.io/developer/1252861854) | [Acuity-vct, Inc.](https://appshunter.io/developer/901921616) |

## What reviewers say

### E85 Content

[App page](https://appshunter.io/ios/app/e85-content/id1252861855)

This application displays real-time ethanol content and fuel pressure for your vehicle's fuel system. It requires a specific Bluetooth plugin kit and is compatible with a range of vehicles, with ongoing development for expansion.

**Highlights:** Real-time ethanol content display, Real-time fuel pressure display, Requires Flex Fuel Bluetooth plugin kit, Compatible with various vehicles, Ongoing development and expansion

**Features:** macOS Compatibility

**In-app purchases:** none


### Art Sentry

[App page](https://appshunter.io/ios/app/art-sentry/id1569865224)

**In-app purchases:** none


## Frequently asked questions

### Is E85 Content free?

E85 Content is free to download, with no in-app purchases.

### Is Art Sentry free?

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

### Do E85 Content or Art Sentry have ads?

Neither E85 Content nor Art Sentry shows ads.

### Which is updated more often, E85 Content or Art Sentry?

E85 Content ships an update every 17 months, and Art Sentry every 3 months. Most recently, E85 Content was updated on September 22, 2026 and Art Sentry on October 1, 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.*