# e85Cal vs HighwayRadar

The clearest difference is in-app purchases: e85Cal at none against HighwayRadar's 4. e85Cal also leads on iOS requirement (12.1 vs 16.0). HighwayRadar's advantage is update cadence (every 9 days vs every 4 months) and ratings volume (129 vs 35). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. HighwayRadar sells 4 in-app purchases, starting at $4.99 per month. e85Cal asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for e85Cal against 4.6 for HighwayRadar. Both are backed by a comparable volume of ratings — 35 and 129 respectively. Written reviews are what separate them: 82% of e85Cal's written reviews are positive against 80% of HighwayRadar's.

e85Cal ships an update every 4 months, HighwayRadar every 9 days. The most recent releases landed on July 23, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | e85Cal | HighwayRadar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (35 ratings)](https://appshunter.io/ios/app/e85cal/id1470313135/reviews)** | [4.6 (129 ratings)](https://appshunter.io/ios/app/highwayradar/id6463768103/reviews) |
| Number of ratings | 35 | **129** |
| Positive reviews | **81.8% of reviews** | 80.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 9 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 15 MB | 144 MB |
| Requires iOS | **12.1** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Michael Joe](https://appshunter.io/developer/1132486512) | [Blue Ridge Software Development LLC](https://appshunter.io/developer/1704939813) |

## What reviewers say

### e85Cal

[App page](https://appshunter.io/ios/app/e85cal/id1470313135)

This app assists users in calculating the precise amounts of standard and ethanol gasoline needed to achieve a desired ethanol percentage in their fuel mix. It simplifies the process by taking into account tank size, current fuel level, and the ethanol content of available fuel types.

**Highlights:** Calculate ethanol percentage goal, Enter gas tank size, Input standard pump gas ethanol %, Input ethanol pump gas ethanol %, Set target ethanol % mix, Enter current fuel level %

**Features:** macOS Compatibility

**In-app purchases:** none


### HighwayRadar

[App page](https://appshunter.io/ios/app/highwayradar/id6463768103)

This app provides real-time alerts for speed traps, cameras, and aircraft enforcement using crowd-sourced data and a comprehensive database. It also intelligently controls compatible radar detectors, offering customizable alert modes and audio notifications to enhance your driving awareness.

**Highlights:** Crowd-sourced police and camera alerts, Worldwide speed and redlight camera database, Aircraft speed enforcement alerts, Heat maps and risk score for speed traps, Intelligent radar detector control, Customizable alert modes and audio notifications

**Features:** Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Family Discount | $14.99 | per year |
| Annual | $14.99 | per year |
| Family | $24.99 | per year |


## Frequently asked questions

### Is e85Cal free?

e85Cal is free to download, with no in-app purchases.

### Is HighwayRadar free?

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

### Which has better reviews, e85Cal or HighwayRadar?

e85Cal is rated higher. e85Cal averages 4.7 out of 5 from 35 ratings, while HighwayRadar averages 4.6 from 129 ratings.

### Do e85Cal or HighwayRadar have ads?

Neither e85Cal nor HighwayRadar shows ads.

### Which is updated more often, e85Cal or HighwayRadar?

e85Cal ships an update every 4 months, and HighwayRadar every 9 days. Most recently, e85Cal was updated on July 23, 2026 and HighwayRadar on September 25, 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.*