# E85 App vs Flash Tree

The clearest difference is review sentiment: Flash Tree at 100% against E85 App's 50%. Flash Tree also leads on ads (none vs shown) and iOS requirement (11.0 vs 17.0). E85 App's advantage is rating (4.2 vs 4.0) and ratings volume (44 vs 4). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. E85 App sells 3 in-app purchases, starting at $2.99 per month and Flash Tree sells 1 in-app purchase, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

E85 App holds the better App Store score, 4.2 against 4.0. That said, the two scores are not equally well evidenced: E85 App has 44 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 50% of E85 App's written reviews are positive against 100% of Flash Tree's, so the app with the better star average is not the one people write more warmly about.

E85 App ships an update weekly, Flash Tree every 10 days. The most recent releases landed on October 12, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | E85 App | Flash Tree |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (44 ratings)](https://appshunter.io/ios/app/e85-app/id1508517906/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/flash-tree/id1591487632/reviews) |
| Number of ratings | **44** | 4 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 10 days |
| Monetization | Free with in-app purchases | Freemium |
| Size | 27 MB | 30 MB |
| Requires iOS | 17.0 | **11.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ahmed Elsayed](https://appshunter.io/developer/1497438505) | [BUILDMYPAGE, LLC](https://appshunter.io/developer/1550205663) |

## What reviewers say

### E85 App

[App page](https://appshunter.io/ios/app/e85-app/id1508517906)

Find E85 gas stations nearby and calculate E85 fuel mixtures. This tool is designed for car enthusiasts who use or are interested in E85 fuel.

**Highlights:** E85 gas station locator, E85 mix calculator, Location-based search, Fuel mixture calculations

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| E85 Pro Monthly | $2.99 | per month |
| E85 Pro Yearly | $19.99 | per year |
| Remove Ads | $5.99 | one-time |


### Flash Tree

[App page](https://appshunter.io/ios/app/flash-tree/id1591487632)

Synchronize countdown timers across multiple devices for group races or events. Start races instantly without needing external assistance. Ideal for competitive activities where precise timing is crucial.

**Highlights:** Synced countdown timers, Group race functionality, Start races instantly, Multi-device synchronization, Customizable countdowns

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flash Tree Subscription | $9.99 | per month |


## Frequently asked questions

### Is E85 App free?

E85 App is free to download, with in-app purchases available.

### Is Flash Tree free?

Flash Tree is free to download, with in-app purchases available.

### Which has better reviews, E85 App or Flash Tree?

E85 App is rated higher. E85 App averages 4.2 out of 5 from 44 ratings, while Flash Tree averages 4.0 from 4 ratings.

### Do E85 App or Flash Tree have ads?

E85 App shows ads; Flash Tree does not.

### Which is updated more often, E85 App or Flash Tree?

E85 App ships an update weekly, and Flash Tree every 10 days. Most recently, E85 App was updated on October 12, 2026 and Flash Tree on September 26, 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.*