The iPad app mimics the sound and looks of an old-fashion typewriter, something the Apollo 13 actor is apparently partial to.
"No longer must you surrender modern luxuries, like the DELETE key," Hanks said in a press release. "With Hanx Writer, you'll hear the rhythm of your work with SHOOK SHOOK or FITT-FITT."
Stuart Westphal, the vice president of games and interactive with the app's development studio, Hitcents, said the app is one-of-a-kind among other typewriter apps on the market.
"It was Tom's energy and enthusiasm that made an impression on me," he said in a statement. "I wanted to capture that spirit with this app. Nostalgic...yes! But also a tool that composes well and is enjoyable to use more than once."
The best part is the app is free.