Hi Product Hunt! 👋 The inspiration for Syntergy came from a very practical, everyday frustration. I often found myself in situations where I had to do rapid mental math—like buying items in fast-paced markets where sellers fire off prices quickly without handing out a receipt. I realized my mental calculation speed wasn't as sharp as I needed it to be. Instead of looking for existing solutions or playing other games, I decided to build my own tool from scratch to solve this exact problem. That's how Syntergy was born. I created it to train my brain for those real-world situations, and it worked so effectively that I now use it actively every single day to keep my mind sharp. I’d love for you to try it out and hear your feedback. Let me know what you think!

Syntergy — Train your mind

The ultimate mobile app to train your brain

The ultimate mobile app to train your brain