Here's a question worth asking about any planner app: if the company behind it disappeared tomorrow, what happens to your data?
For most of them the honest answer is: it's gone, because it never really lived with you. It lived on their servers, and your app was a window. Close the company, close the window.
TaskPlannera is built the other way around, on an architecture nerds call local-first. It's a simple idea with big consequences: the copy of your data on your device is the real one. Not a cache, not a sync artifact. The actual thing.
What this buys you
First, it works offline, fully, because offline isn't a degraded mode. It's the default mode. Airplane, basement, dead zone, data cap: the app neither knows nor cares.
Second, no account. You install it and start planning. There is no server that needs to know who you are, so we never ask. Sign-in exists only if you want the optional sync between devices, and your private diary stays end-to-end encrypted even then, which means even the sync server can't read it.
Third, and this is the one I care about most: a planner sees everything. Your habits, your spending, your moods, your meds, who you've been meaning to call. That's exactly the data an ad-funded business would love and exactly the data that should never leave your pocket by default. The most trustworthy privacy policy is an architecture that has nothing to leak.
Portability is a feature
There's one more piece: a single tap exports everything you've ever logged into one plain file you can read, back up, or walk away with. Import brings it all back. I want you to stay because Tuesday felt lighter, not because leaving is a hostage negotiation.
Local-first is harder to build. Sync without a central source of truth is a genuinely annoying computer science problem, and I chose it anyway, because 'your data is yours' should be a fact about the software, not a line in the marketing.