~20 years ago, HN user sophiebits made a nice arithmetic trainer: https://arithmetic.zetamac.com/ (discussed here: https://news.ycombinator.com/item?id=1728309 The features I plan to add to make it 'complete':. - Source: Hacker News / about 1 month ago

You should also find an online arithmetic drill site and set it up to give you 1-digit addition, subtraction, and multiplication problems. You don't have to memorize all the 1-digit number facts (I didn't until I was in college) but boy howdy will it speed you up. You should drill until you can do about 30 in two minutes. I recommend arithmetic.zetamac.com ; you should select addition and multiplication only,... Source: 8 months ago

I've spent time improving my written arithmetic with games like https://arithmetic.zetamac.com/. Speed drills. I still struggle with arithmetic that is prompted without being written down. I.e. If someone said "43+12" I would find this hard whereas doing this on a written online speed drill is fine. Does anyone have any resources that would say outloud basic arithmetic questions and I can then input the answers? Source: 10 months ago

I quite like this for helping cognition but weirdly I can still be good at it but have awful memory at the same time. It's quite addictive just press start. Https://arithmetic.zetamac.com. Source: 11 months ago

Arithmetic game (https://arithmetic.zetamac.com/) is good for testing yourself, and you can change the size of the numbers you're working with if you find you have difficulty with a particular combo. Source: about 1 year ago

https://play.google.com/store/apps/details?id=com.jedlix.ich... says "This item isn't available in your country (USA)" so I hope there are enough folks in whatever country you're targeting to make your shameless self-promotion work out for you. - Source: Hacker News / 2 days ago

>Those are clearly not the gamers I am talking about. You specified gamers, you should have explicitly specified PC gamers if they are who you referred to. Note that PC gamers are, as much as they deny it, a minority of out of all gamers as a whole. The vast majority of gamers play on mobile or consoles, and of those mobile far outnumbers consoles too. Consoles can also switch processor architectures... - Source: Hacker News / 3 days ago

I've been working on an app called Quoter, designed to deliver daily inspirational quotes from renowned authors and thinkers. With Quoter, you can swipe right to like a quote or left to dislike it, making it easy to engage with content that resonates with you. You can save your favorite quotes and organize them into custom collections. Registered users can also add their own quotes. Sharing quotes with friends or... - Source: Hacker News / 3 days ago

We have created this Mobile Game which is based on Lord Hanuman life. It has many phases of his life mainly Chitrakoot, Himalayas, Ram Setu, Panchvati and Hampi. https://play.google.com/store/apps/details?id=com.hanuman_th... And we are working on other parts too which we will release soon. Would love your... - Source: Hacker News / 9 days ago

"and who otherwise value open source" I hope that we can all applaud and value open source but the world is a mad place. Android: https://play.google.com/store/apps/details?id=de.seemoo.at_t... I can't find an Apple version so I might suppose that either Apple's nose is out of joint with regards the name, or an... - Source: Hacker News / 10 days ago