iPad Screenshots


E-TUBE PROJECT is an application that allows you update your bicycle's firmware and change Di2 settings by connecting wirelessly.

Customize functions and operations as you please. Discover the settings that match your personal riding style.

Update firmware
The application automatically checks for new firmware each time it is started. This allows you to keep all units up-to-date at all times.

Error check
If you notice an abnormality, immediately perform a diagnosis using the app. The unit at issue is identified, allowing you to quickly and easily seek repairs.

This function allows you to connect one or more units and read or write all the settings of those units at a time. The readout settings can be saved in a file. The settings can also be successively written to multiple bicycles.

What’s New

Version 3.3.3

・Adopted for Gravel/Adventure Road Bike rear derailleur, RD-RX805
・Bug fixing

Ratings and Reviews

1.8 out of 5
12 Ratings
12 Ratings
s_nexus ,

Just Don’t Do It

I read the one and two star reviews and just couldn’t believe everyone was having issues with the app. After all, I had just seen a YouTube video of everything working. I went ahead and tried it anyway. I paired my iPad with the di2 units, opened the app which immediately forced me to upgrade the firmware. 10% through the upgrade the connection failed. I tried connecting again to no avail. I tried shifting gears... oh, no. It was bricked. I had to disconnect the battery for a few minutes and go through the e-tube software on my computer using the USB cable to regain functionality. Don’t use this app; It’s not worth the headache.

kndnss-aar ,

Completely Unusable

Disconnected at 10% into an update and completely shut down the di2 system. No way to recover other than a wired connection through a laptop. It’s not worth a hassle. This is way below Shimano’s typical standard.

Tph423 ,


Caveat emptor! I was able to connect via Bluetooth, but after completing about 25%of upgrade, connection was lost and Di2 was fried -- no lights on junction A box, can't shift at all. Check websites and you'll find this is a very common problem. Oh, and there's no Mac version of software, so oft-suggested solution to connect to PC (via another $125 gizmo) is not an option if you don't have a PC.
Shimano, you need to test this software before releasing it.


175.9 MB
Requires iOS 9.0 or later. Compatible with iPad.
English, Chinese, Dutch, French, German, Italian, Japanese, Spanish
Age Rating
Rated 4+


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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