About Cyber-Jack
I'm the one-person studio behind Cyber-Jack, building small, private apps and free daily brain games out of the UK. Things like Letterly, Cluster, Rankle and Spot On, plus apps like GutLedger and ListLedger, all made to be genuinely useful with no subscriptions, no ads, and no selling your data.
The daily games are free and always will be. If one of them brightened a commute or a coffee break, a coffee back my way helps cover the servers and keeps me building the next one. Thank you, it honestly means a lot.
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