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YOKOHAMA (Señor Tomato) – I’m not so sure if the rainy season is over. In most cases, it ends in the mid to late July. This year, it still rains.
All right. I don’t remember the last time I released an iPad-only app. You may have guessed it, but it is Quick Sub 2 that has been made available for iPad users. No, it’s not available for iPhone users. And this release is called Quick Sub Mobile.
Quick Sub Mobile is a direct conversion of an existing desktop application called Quick Sub 2. I developed the initial version of Quick Sub in Cocoa so that I could show the Apple Reviewer quickly how the software title that I submit to them works with some comments without paying a dime to an unknown developer. It has accomplished its purpose, and I used it till a few months ago (Spring, 2026). But it had a major limitation: The user was not able to rescale the Timeline view. So I developed Quick Sub 2 and Quick Sub Mobile from a scratch in SwiftUI to overcome to this aspect of inconvenience.
The main objective of Quick Sub Mobile is to let the user add text layers to the movie screen. Quick Sub 2 and Quick Sub Mobile goes beyond this initial objective and supports four different layer types: Text, Circle, Rectangle, and SF Symbol. If you are not familiar with SF Symbols, let me tell you that they come from a desktop application freely distributed by Apple, Inc.
Just like the desktop version, Quick Sub Mobile supports undo/redo stacks. You can just tap the orange Undo button when an “oops” happens or tap the Redo button to redo the last change. In the mobile version, you can also save progress so that you can restart next time at the point where you ended last time. The app will list all existing projects on the startup screen, so you can either select a new video clip to start a new project or open an existing project file.
Lastly, let me tell you that porting Quick Sub 2 to iOS was not easy at all. I ran into a lot of trouble when trying to open an existing project. Continue reading