E3 Controller vs FuelByMe
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
E3 Controller
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.
- Remote control for Disklavier E3/DKC-850
- Access all infrared remote functions
- View piano control unit screen
- Check song titles remotely
- Wireless router connectivity
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E3 Controller is an application designed to enable remote control of a Disklavier E3 or DKC-850. All functions that were possible with the infrared remote control (that was included with the Disklavier E3 or DKC-850) have been made available on iOS devices (iPhone/iPod touch/iPad). Moreover, the E3 Controller displays the screen of the control unit of Disklavier, so you don't have to physically go to the piano to confirm, for example, a song title. All that's required is your ability to access the wireless router that is connected to your Disklavier. Requirements: - Disklavier E3 Version 3.20 or later, or DKC-850 Version 3.20 or later - Wireless router Usage note: * Connect Disklavier to the wireless router by LAN cable and choose that same network in the Wi-Fi setting of iPhone/iPod touch/iPad. * If the wireless router has several local networks, confirm that the Disklavier and the iOS device are connected to the same LAN. For more detail, refer to the manual that came with your wireless router. User's Guide: You can access the E3 Controller User's Guide by tapping the "triangle" button in the lower-right corner of the display.
FuelByMe
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FuelByMe is a mobile application that guides to and allows you to pay for gas through your mobile device at certain gas stations.
Screenshots
Verdict
The clearest difference is update cadence: FuelByMe at every 2 months against E3 Controller's every 11 months. E3 Controller's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 17.4). On price, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
E3 Controller ships an update every 11 months, FuelByMe every 2 months. The most recent releases landed on October 22, 2026 and October 7, 2026 respectively.
| Parameter | E3 Controller | FuelByMe |
|---|---|---|
| Price | Free | Free |
| Rating | 2.9 (9 ratings) — better | — |
| Positive reviews | 57.1% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Every 11 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 17.4 |
| Further details — not scored | ||
| Size | 12 MB | 74 MB |
| Age rating | 4+ | 4+ |
| Developer | Yamaha Corporation of America | VemSoft Muszaki-fejleszto es Szolgaltato Kft |
In-app purchases
E3 Controller
No in-app purchases
FuelByMe
No in-app purchases
