# E3 Controller vs Blue Tea

The clearest difference is review sentiment: Blue Tea at 100% against E3 Controller's 57%. Blue Tea also leads on rating (5.0 vs 2.9) and update cadence (monthly vs every 11 months). E3 Controller's advantage is ratings volume (9 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Blue Tea holds the better App Store score, 5.0 against 2.9. That said, the two scores are not equally well evidenced: E3 Controller has 9 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 57% of E3 Controller's written reviews are positive against 100% of Blue Tea's.

E3 Controller ships an update every 11 months, Blue Tea monthly. The most recent releases landed on October 15, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | E3 Controller | Blue Tea |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.9 (9 ratings)](https://appshunter.io/ios/app/e3-controller-us/id509030474/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/blue-tea-file-sharing/id1566603838/reviews)** |
| Number of ratings | **9** | 1 |
| Positive reviews | 57.1% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Monthly** |
| Monetization | Free | Free |
| Size | 12 MB | 42 MB |
| Requires iOS | **12.0** | 12.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yamaha Corporation of America](https://appshunter.io/developer/408058585) | [Kakas Group LTD](https://appshunter.io/developer/1537388741) |

## What reviewers say

### E3 Controller

[App page](https://appshunter.io/ios/app/e3-controller-us/id509030474)

Control your Disklavier E3 or DKC-850 remotely from your iOS device. View song titles and access all functions previously available with the infrared remote. Requires a wireless router connection to your piano.

**Highlights:** Remote control for Disklavier E3/DKC-850, Access all infrared remote functions, View piano control unit screen, Check song titles remotely, Wireless router connectivity

**Features:** macOS Compatibility

**In-app purchases:** none


### Blue Tea

[App page](https://appshunter.io/ios/app/blue-tea-file-sharing/id1566603838)

Easily share photos, videos, audio, and files of any format with friends without using mobile data. This cross-platform tool is always free and ad-free, allowing for convenient file transfers anytime, anywhere.

**Highlights:** Cross-platform sharing, No mobile data required, Share photos, videos, audio, and files, Ad-free experience, Always free to use

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

**In-app purchases:** none


## Frequently asked questions

### Is E3 Controller free?

E3 Controller is free to download, with no in-app purchases.

### Is Blue Tea free?

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

### Which has better reviews, E3 Controller or Blue Tea?

Blue Tea is rated higher. E3 Controller averages 2.9 out of 5 from 9 ratings, while Blue Tea averages 5.0 from 1 ratings.

### Do E3 Controller or Blue Tea have ads?

Neither E3 Controller nor Blue Tea shows ads.

### Which is updated more often, E3 Controller or Blue Tea?

E3 Controller ships an update every 11 months, and Blue Tea monthly. Most recently, E3 Controller was updated on October 15, 2026 and Blue Tea 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.*