# Colorful Lights vs e85Cal

The clearest difference is review sentiment: e85Cal at 83% against Colorful Lights's 16%. e85Cal also leads on rating (4.7 vs 2.0) and iOS requirement (12.1 vs 15.6). On price, ratings volume, update cadence and ads there is nothing between them.

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

e85Cal holds the better App Store score, 4.7 against 2.0. Both are backed by a comparable volume of ratings — 23 and 35 respectively. Written reviews point the same way: 16% of Colorful Lights's written reviews are positive against 83% of e85Cal's.

Colorful Lights ships an update every 6 months, e85Cal every 4 months. The most recent releases landed on October 16, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Colorful Lights | e85Cal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (23 ratings)](https://appshunter.io/ios/app/colorful-lights/id1175269452/reviews) | **[4.7 (35 ratings)](https://appshunter.io/ios/app/e85cal/id1470313135/reviews)** |
| Number of ratings | 23 | **35** |
| Positive reviews | 16.0% of reviews | **83.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 4 months** |
| Monetization | Free | Free |
| Size | 25 MB | 15 MB |
| Requires iOS | 15.6 | **12.1** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [晓勇 何](https://appshunter.io/developer/1175269420) | [Michael Joe](https://appshunter.io/developer/1132486512) |

## What reviewers say

### Colorful Lights

[App page](https://appshunter.io/ios/app/colorful-lights/id1175269452)

Control your lights wirelessly via Bluetooth. Adjust color and brightness, sync with music, or set patterns for dynamic lighting effects.

**Highlights:** Bluetooth wireless control, Adjustable color, Adjustable brightness, Music synchronization, Sound-reactive lighting, Pattern-based color changes

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Colorful Lights free?

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

### Is e85Cal free?

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

### Which has better reviews, Colorful Lights or e85Cal?

e85Cal is rated higher. Colorful Lights averages 2.0 out of 5 from 23 ratings, while e85Cal averages 4.7 from 35 ratings.

### Do Colorful Lights or e85Cal have ads?

Neither Colorful Lights nor e85Cal shows ads.

### Which is updated more often, Colorful Lights or e85Cal?

Colorful Lights ships an update every 6 months, and e85Cal every 4 months. Most recently, Colorful Lights was updated on October 16, 2026 and e85Cal on October 12, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*