# E3 Controller vs ICVIEW PRO

The clearest difference is review sentiment: E3 Controller at 57% against ICVIEW PRO's 14%. E3 Controller also leads on rating (2.9 vs 2.6). ICVIEW PRO's advantage is update cadence (every 4 months vs every 11 months) and ratings volume (60 vs 9). 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.

E3 Controller holds the better App Store score, 2.9 against 2.6. That said, the two scores are not equally well evidenced: ICVIEW PRO has 60 ratings behind it against 9, 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 14% of ICVIEW PRO's.

E3 Controller ships an update every 11 months, ICVIEW PRO every 4 months. The most recent releases landed on September 21, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | E3 Controller | ICVIEW PRO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.9 (9 ratings)](https://appshunter.io/ios/app/e3-controller-us/id509030474/reviews)** | [2.6 (60 ratings)](https://appshunter.io/ios/app/icview-pro/id1640612893/reviews) |
| Number of ratings | 9 | **60** |
| Positive reviews | **57.1% of reviews** | 13.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 4 months** |
| Monetization | Free | Free |
| Size | 12 MB | 494 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yamaha Corporation of America](https://appshunter.io/developer/408058585) | [ICRealtime LLC](https://appshunter.io/developer/371266663) |

## 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


### ICVIEW PRO

[App page](https://appshunter.io/ios/app/icview-pro/id1640612893)

Access and manage your IC Realtime security camera systems remotely. This app offers a redesigned interface for intuitive control, live video streaming, and advanced features like PTZ camera control and two-way audio.

**Highlights:** Live video streaming, PTZ camera control, Username/password authentication, Snapshot capture, Multi-window view, Live audio streaming, Bidirectional talk

**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 ICVIEW PRO free?

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

### Which has better reviews, E3 Controller or ICVIEW PRO?

E3 Controller is rated higher. E3 Controller averages 2.9 out of 5 from 9 ratings, while ICVIEW PRO averages 2.6 from 60 ratings.

### Do E3 Controller or ICVIEW PRO have ads?

Neither E3 Controller nor ICVIEW PRO shows ads.

### Which is updated more often, E3 Controller or ICVIEW PRO?

E3 Controller ships an update every 11 months, and ICVIEW PRO every 4 months. Most recently, E3 Controller was updated on September 21, 2026 and ICVIEW PRO on September 6, 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.*