Comparison

E3 Controller vs Big Ass Fans

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read full description

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.

About

Big Ass Fans

Control your residential fans remotely from anywhere in the world. Adjust fan speeds, set automated comfort levels, and integrate with smart home assistants. Manage LED lights, schedule operations, and utilize special modes like Whoosh and Clean Mode.

Highlights
  • Remote fan speed control (7 speeds)
  • Automated comfort level settings
  • Smart home assistant integration (Alexa, Google Assistant)
  • LED light brightness and color temperature adjustment
  • Scheduling and automated operation
  • Whoosh mode for natural breezes
  • UV-C system status and Clean Mode control
Features
Read full description

Control your residential fans from anywhere in the world with the Big Ass Fans app! • Select among your fan’s seven unique speeds • Configure your fan to automatically maintain your ideal comfort level • Learn how to connect your fan to Amazon Alexa or The Google Assistant, for voice control and smart home integration • Adjust your LED light’s brightness and color temperature • Improve energy efficiency by setting up your light to work automatically • Link your fan with ecobee smart thermostat • Group multiple fans together to control them as one • Schedule your fan to make your daily routine even easier • Mimic cooling, natural breezes with Whoosh mode • Turn Clean Mode on or off and check the status of your UV-C system • Get help and find FAQs Having trouble with your fan? Call 877-BIG-FANS to speak with a customer support specialist.

Screenshots

E3 Controller2 screens
Big Ass Fans4 screens

Verdict

The call

The clearest difference is rating: Big Ass Fans at 4.9 against E3 Controller's 2.9. Big Ass Fans also leads on review sentiment (88% vs 57%) and ratings volume (2.2K vs 9). E3 Controller's advantage is iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

Big Ass Fans holds the better App Store score, 4.9 against 2.9. That said, the two scores are not equally well evidenced: Big Ass Fans has 2.2K 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 88% of Big Ass Fans's.

UpkeepUpdate frequency

E3 Controller ships an update every 11 months, Big Ass Fans every 2 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard5 real differences · 5 level
E3 Controller versus Big Ass Fans: the parameters behind the verdict, then further details
ParameterE3 ControllerBig Ass Fans
PriceFreeFree
Rating2.9 (9 ratings)4.9 (2.2K ratings) — better
Positive reviews57.1% of reviews88.5% of reviews — better
Number of ratings92.2K — better
Update frequencyEvery 11 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.1
Further details — not scored
Size12 MB46 MB
Age rating4+4+
DeveloperYamaha Corporation of AmericaDelta T LLC

Customer experience

E3 Controller

All ratings9 ratings
Positive44.4%
Neutral11.1%
Negative44.4%
Written reviews7 reviews
Positive57.1%
Neutral0.0%
Negative42.9%

Big Ass Fans

All ratings2,212 ratings
Positive97.4%
Neutral0.4%
Negative2.2%
Written reviews304 reviews
Positive88.5%
Neutral1.3%
Negative10.2%

Bugs and requests

E3 Controller

Not enough reviews yet to summarise bugs or requests.

Big Ass Fans

Reported bugs

3 issues
  • Light turning on randomly at night
  • Fans disconnecting from WiFi
  • Wall controls becoming unresponsive after updates

Requested features

4 requests
  • Add support for Apple HomeKit
  • Improve scheduling and automation features
  • Provide more granular speed and light control
  • Integrate with more smart home platforms

In-app purchases

None

E3 Controller

No in-app purchases

None

Big Ass Fans

No in-app purchases

Questions

Is E3 Controller free?
E3 Controller is free to download, with no in-app purchases.
Is Big Ass Fans free?
Big Ass Fans is free to download, with no in-app purchases.
Which has better reviews, E3 Controller or Big Ass Fans?
Big Ass Fans is rated higher. E3 Controller averages 2.9 out of 5 from 9 ratings, while Big Ass Fans averages 4.9 from 2.2K ratings.
Do E3 Controller or Big Ass Fans have ads?
Neither E3 Controller nor Big Ass Fans shows ads.
Which is updated more often, E3 Controller or Big Ass Fans?
E3 Controller ships an update every 11 months, and Big Ass Fans every 2 months. Most recently, E3 Controller was updated on November 1, 2026 and Big Ass Fans on November 6, 2026.

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