# E85 App vs BuildSpec

The clearest difference is review sentiment: BuildSpec at 100% against E85 App's 51%. BuildSpec also leads on rating (5.0 vs 4.4) and in-app purchases (none vs 3). E85 App's advantage is update cadence (weekly vs every 3 months) and ratings volume (60 vs 1). On price, device support and iOS requirement there is nothing between them.

Both are free to download. E85 App sells 3 in-app purchases, starting at $2.99 per month. BuildSpec asks for nothing beyond the download.

BuildSpec holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: E85 App has 60 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 51% of E85 App's written reviews are positive against 100% of BuildSpec's.

E85 App ships an update weekly, BuildSpec every 3 months. The most recent releases landed on October 29, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | E85 App | BuildSpec |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (60 ratings)](https://appshunter.io/ios/app/e85-app/id1508517906/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/buildspec-car-builds/id6758304475/reviews)** |
| Number of ratings | **60** | 1 |
| Positive reviews | 51.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 27 MB | 11 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Ahmed Elsayed](https://appshunter.io/developer/1497438505) | [Grant Johnson](https://appshunter.io/developer/1866959368) |

## 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 |

**What reviewers like**

- 👍 Helpful for finding E85 stations
- 👍 Accurate E85 station information
- 👍 Useful E85 calculator
- 👍 Good for travel
- 👍 All-in-one app

**What reviewers complain about**

- 🐛 Black screen on startup
- 🐛 Frequent ads are annoying
- 🐛 Ads are uncloseable
- 🐛 Paid version still has ads
- 🐛 Missing many E85 stations

**Reported bugs**

- Black screen after updates
- App shows blank black screen
- App deleted account after sign out
- Ads are uncloseable
- Coinbase ad cannot be closed

**Requested features**

- Add option to add/suggest stations
- Make search easier
- Improve money log keypad
- Make favorites more accessible
- Add live, up-to-date prices


### BuildSpec

[App page](https://appshunter.io/ios/app/buildspec-car-builds/id6758304475)

Easily track, organize, and showcase your car modification projects. Log parts, costs, and installation details for multiple vehicles in a structured, searchable garage. Designed for car builders and modifiers to maintain a complete build history.

**Highlights:** Track modifications and parts, Log costs and installation details, Maintain build history, Create multiple vehicle profiles, Store specifications and photos, Organized garage dashboard

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

**In-app purchases:** none


## Frequently asked questions

### Is E85 App free?

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

### Is BuildSpec free?

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

### Which has better reviews, E85 App or BuildSpec?

BuildSpec is rated higher. E85 App averages 4.4 out of 5 from 60 ratings, while BuildSpec averages 5.0 from 1 ratings.

### Do E85 App or BuildSpec have ads?

E85 App shows ads; BuildSpec does not.

### Which is updated more often, E85 App or BuildSpec?

E85 App ships an update weekly, and BuildSpec every 3 months. Most recently, E85 App was updated on October 29, 2026 and BuildSpec on October 10, 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.*