Serial 7s
Serial Sevens Subtraction.
About
This game challenges you to rapidly subtract 7 from a starting number until you can no longer continue. It's based on a cognitive test used to assess attention and memory, with consistent play potentially improving brain skills and helping to prevent cognitive decline.
What's New in Serial 7s
1.1.0
September 21, 2026
Game modes updated to 2 options. Added 'Remove Ads' in-app purchase.
Developer apps
FAQ
What is Serial 7?
Serial 7 is a game designed to test and improve your ability to subtract the number seven consecutively from a starting number. It's based on a cognitive test used to assess attention and memory.
How does Serial 7 help with brain health?
Consistent play of Serial 7 can help improve brain skills such as attention and memory. It is also recommended for users interested in dementia prevention and maintaining cognitive function.
What is the gameplay like in Serial 7?
The game randomly selects a starting number between 94 and 100. You then measure how quickly you can subtract 7 in a row until you can no longer continue the sequence.
Is Serial 7 free to play?
Yes, Serial 7 is free to download and play. However, it does contain advertisements.
Does Serial 7 have ads?
Yes, Serial 7 contains advertisements.
What devices is Serial 7 available on?
Serial 7 is available on iPhone, iPad, and iPod devices.
What is the age rating for Serial 7?
Serial 7 has an age rating of 9+.
How often is Serial 7 updated?
The latest version of Serial 7 is 1.0.3, and it was last updated on August 20, 2024.
