Kismet Studio makes two kinds of apps for iPhone. Ones that make life more fun while giving your brain a real workout, and ones that make you better at what you already do, at work and everywhere else.
CastleWise and Sumhow are on the App Store now. Lantern is coming soon.
CastleWise
Home maintenance for iPhone
Lifestyle · HomeBetter at life
The owner's manual your house never came with.
You own a house, and nobody handed you the manual. So the filter gets changed when you happen to remember, the water heater warranty is in a drawer somewhere, and every strange noise starts with a search bar at 9 pm.
CastleWise fixes that. Keep every appliance, warranty, and service date in Records. Get reminded before the filter, the gutters, or the flush is due, not after. When something breaks, point your camera at it with FixLens and get the fix, the part, or a pro in one tap. New in 1.4, it reads plants, stains and pests too, not just error codes. Eleven calculators handle the paint, the mulch, and the BTUs. You stop guessing, stop dreading the next surprise, and finally feel like you run the house instead of the other way around.
86guides
120fix playbooks
11calculators
iPhoneiOS 17 or later
Look around firstEvery screen, before you download
Three keys. One number. Somehow, you'll get there.
If you do the Wordle before your coffee, this is your next habit. Sumhow hands you a calculator with most of its keys missing, names a number, and asks you to reach it in the fewest presses. Level one gives you a 3, a plus, and a times, and asks for 99. You already know how to work a calculator, so there is no tutorial. The first puzzle clicks in about four seconds.
Every chapter changes the keypad on you. A key that types twice. A key that is slowly dying. A mirror that flips your digits. No timers, no lives, no fail state, just you, a broken little machine, and that small rush when the number lands. And some numbers make the machine do things we are not going to explain here.
3keys to start
0timers or lives
4 secto learn it
iPhoneiOS 17 or later
Look around firstEvery screen, before you download
Most households already own a week of food, a case of water and a drawer of batteries. What they don't have is a list. Lantern keeps it: what you have, where it is, when it expires, and how many days your people are covered for, in calories and in doses.
The Toolkit is free for everyone, always: SOS light, outage clocks for the fridge and freezer, emergency numbers, a medication card to hand to whoever is helping, and know-how cards from CDC and FEMA. No account, no cloud, nothing leaves your phone.
Tools that bring a little joy and ease to your day.
Kismet Studio is a small independent studio that builds apps for iPhone. Some are there to make life more fun while giving your brain a proper workout. Others make you better at the things you already do, at work, at home, and everywhere in between.
We build them for a feeling. The small relief when the thing you were dreading turns out to be handled. The quiet pride of getting a little better at something. The grin when a puzzle finally gives. Every app starts with one of those moments and works backward from there. And we never call one finished. Each keeps getting better, with new features and smarter ways to do what it already does.
Kismet is the old word for a lucky turn of fate. That is the feeling we are after: the right small tool turning up at exactly the right moment.
Say hello.
Support, press, or a project you think we would be right for. A person reads every message.
