OTOTETSU

Hisato Takeuchi · Entertainment

4.7 16 ratings Free

Chart standing · US

Not currently charting in this storefront.

What changed · US

Listing changes AppTracker has observed for this app in this storefront — new versions, price moves, rating shifts, and store copy.

Aug 27, 2026
New version 1.9.2 → 1.10.0

- The master controller can now be mounted vertically. - You can now select the number of notches on the master controller. - Added a feature for switching patterns automatically between acceleration and braking. - Added support for setting the speed range for each inverter configuration using the inverter’s output frequency.

Aug 26, 2026
Rating ★ 4.72 → 4.69

Price & rating history · US

Reconstructed from the listing changes AppTracker has observed in this storefront, so each line starts at the first change on record.

Average rating history over the observed period. 4.69 4.7 4.71 4.72 Aug 26 15:40 Aug 27 06:34 Aug 27 21:28 Aug 28 12:22 Aug 29 03:16

Average rating

Screenshots

About

When electric trains accelerate and decelerate, we can hear some characteristic sounds, which is caused by inverters' controlling the torque and the rotational speed of the motors. This app simulates the waveforms generated by inverters and sounds coming from motors, and you can also design sounds of imaginary trains.

What's new · 1.10.0

- The master controller can now be mounted vertically. - You can now select the number of notches on the master controller. - Added a feature for switching patterns automatically between acceleration and braking. - Added support for setting the speed range for each inverter configuration using the inverter’s output frequency.

Details

ReleasedMar 2021
UpdatedDec 2025
Version1.10.0
Size20.6 MB
RequiresiOS 15.0 or later
Age rating4+
LanguagesEnglish, Japanese
PriceFree
Categories EntertainmentUtilities
Bundle IDcom.qtsoundlab.OTOTETSU