TL; DR: Lifetiler now works on iOS and iPadOS as well as macOS, and is available on the App Store for macOS 15 and iOS 17 and above.
In November, I released Lifetiler for macOS, an app I wrote to keep track of which days Joey and I were together in-person — like the contribution graph on GitHub, but with more information. It’s a SwiftUI multiplatform app, which means it could always, in theory, run on iPhone and iPad, but during the initial development I mostly only tested it on macOS, so I didn’t want to release the iOS version until I’d tested it more to make sure it adapted well to the iPhone and iPad worlds.
After releasing the macOS version, I got distracted by another app I wanted to write (so many apps, so little time!) Recently it occurred to me that if I should happen to get a job at a company that has rules about what its employees can do on the App Store, I should try to publish my apps before any such rules apply to me. And I knew it would be quicker to make an iOS version of Lifetiler than to finish the other app, so that’s what I should do first. So I did! Here’s how it looks on iPhone. You can see more screenshots of Lifetiler on macOS, iOS, and iPadOS on the relevant App Stores and on the Spondee Software page for Lifetiler.
Editing a date range on the List tab on iPhone 
The Grid tab on the iPhone showing a square or emoji for each day 
Export as Image on iPhone. Usually there would be suggestions for the number of tiles per row/column that would leave no blank spaces at the end, but Joey and I had known each other for a prime number of days when I took this screenshot. 
Lifetiler could be used as a lo-fi period tracker — the data stays wherever you save the document
It turned out quite a few things needed to change for the app to work well on iOS, so it wasn’t as quick as I’d hoped. Also, my 2017 iPad Pro only runs iOS 17, not 18, so I had to make sure it would work on the slightly older OS.
Along the way I added the ability to save the background colours used in an image export, and made some improvements to the VoiceOver and Dark Mode interfaces, as well as the performance (I have James Dempsey’s Instruments course to thank for that, although my slowish iPad also helped.) These changes also affect the macOS version, so I’ve released version 1.1 for macOS as well. The iOS version is also 1.1, for consistency, although it’s the first version of it I’ve released. Hey, if all Apple’s OSes can jump to v26 simultaneously, I may as well.
But app updates are nothing without life updates, so here’s an updated Lifetiler chart of Joey’s and my relationship, as created by Lifetiler on my iPhone 12 Pro. Check out all those 🏡 emoji at the end where we live together! I suspect some date ranges were slightly altered as I was testing the app on various platforms, but it’s close enough. Currently the only divisors of the number of days we’ve known each other are 17 and 179, so I went for a square-ish image with some empty space at the end. It is possible to change the start and end dates in the Document Settings to avoid empty space, but I wanted this one to have the actual number of days we’ve known each other.
In case you’re wondering, we’ve been together in-person for 533 of the 3043 days we’ve known each other, in 17 contiguous stretches — so since we didn’t start dating until the second time we met, this is technically our 16th date. This is getting serious! Anyway, go check out the app! You get both the macOS and iOS versions in the same purchase.
Oh, one more thing: I’ve also made some small updates to my iOS-only apps NastyWriter and NiceWriter, just to update their contextual menus to be more in line with the current iOS.
Creative Output 