I was originally going to call this one “the widget update,” but that felt a bit dishonest, because that’s not the biggest user-facing change of the update.
As somebody who wants to have a nice, long career making software for people to use, I’m rather invested in the idea that it should be possible to make a living by… making software for people to use. The original business model for the App Store, then, was a bit iffy: the user buys your app and then they have it indefinitely. Good for them, except with the developer no longer making money, they no longer have any incentive to maintain the app.1 Bad news for the user, as the app is no longer getting new features, or even maintained to stay functional on the latest versions of the operating system.
Which is why I’m rather a fan of the subscription mechanic that Apple started giving developers recently. Ongoing revenue means ongoing support; that’s why, for example, I jumped at the chance to support my favorite writing app when they shifted to a subscription model.
With this update, I’m adding a subscription to Fluidics. Thus, the title of the update; it’s definitely not a hidden thing I’m doing here.
I’m also not taking any features away; everything that was available for free in 1.2 remains free.2 The subscription is titled ‘Pro,’ and the goal is for it to provide access to a variety of new features. Initially, there are two: with a Pro subscription, you can apply your own multiplier to your daily goal, from 0.5 to 1.5; and there’s now a second widget option, displaying your progress towards your goal and a single Quick Add button that can cycle through all of your Quick Adds with a tap.
I also want it to be pretty cheap, so it’s about as low as it can go: a dollar a year.
These aren’t the only Pro features I have planned — I’d like to add a few more things that I think will be quite handy. There will be new features for the free version of the app, too; in this update I’ve added a new ‘Goal’ card (in the Settings screen) that shows how the app is calculating your goal. It’s color-coded, I’m quite proud of it.
So that’s the long and short of it: in order to fund ongoing development of the app, there’s a new $1/year subscription that’ll get you some ‘Pro’ features; the core functionality is still free, but if you want a bit more power, it’s there at a very reasonable price.
As always, thank you for reading, and I hope you’ll download Fluidics; it’s free on the App Store.


  1. For a while, this worked out okay, thanks to the explosive growth of the iPhone; the growing customer base of the App Store meant there was functionally infinite growth of your target market. Now that some absurd proportion of the world population owns a smartphone, though, that growth has slowed down. 
  2. I am, admittedly, kicking myself a little about not keeping the “different units per Quick Add” as a ‘pro’ feature, but oh well, I decided I wasn’t going to take anything away from anyone. 

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