Since the desktop version of Aegisub cannot be installed on your phone, you can try these highly-rated subtitle editors from the Google Play Store:
👉 [Download Subtitle Edit for Android (Official Play Store Link)] 👉 [Download Sub Maker (Best for Beginners)]
You get the real Aegisub interface. Cons: Extremely laggy, keyboard dependent, high battery drain, crashes on complex ASS files.
This article is for informational purposes. We do not host or promote unofficial Aegisub APKs. Always download software from official app stores to protect your device.
Go to Settings → Display → Font size. Increase it to 110% for easier touch targeting on subtitle grids.