one-by.one

Tiimo Review 2026: What Reddit Users Say

By one-by.one · Updated

Tiimo users on Reddit love its calm, visual day and timers that start by themselves, but report removed routines, missed notifications, sync trouble and an AI planner that needs correcting. If those are your dealbreakers, one-by.one, our app, is a different kind of Tiimo alternative: your own AI plans the day and your iPhone shows one card at a time.

A row of grey day blocks under a round timer with a lime wedge. One block is cracked, two have come loose at the ends, and a single lime card tips forward out of the row.

Tiimo is a visual daily planner for ADHD and neurodivergent people. On the App Store it holds 4.6 stars from more than 21,000 ratings, was Apple’s iPhone App of the Year 2025, and runs on iPhone, iPad, Apple Watch, Mac, Android and the web.

Tiimo review on Reddit: what users complain about

A chain of rounded tiles with its middle links missing, so one grey tile has dropped out of line. A wristwatch hangs over the gap on dotted lines, and a desk bell sits silent at the end.
Routines taken apart, alerts that stay quiet.

What Tiimo users love

People like a day that looks calm, one user crediting Tiimo for “not making you feel so overwhelmed with your schedule everyday” (September 2026). Others love the visual timers, which start on their own at each task’s set time, and planning by morning, afternoon and evening instead of by the hour.

A large round timer with a lime wedge of time left, beside three soft grey tiles showing a coffee cup, an open book and a moon, and a potted plant.
Tiimo’s strength: a calm day and a timer you can see.

Tiimo alternative: where one-by.one is different

In one-by.one you do not build the day in the app. Your own AI plans it: ChatGPT, Claude or another assistant that supports custom connectors, set up once on the Connect page. It fits habits between calendar events and to-dos and adds travel and prep.

The one-by.one iPhone app showing a Make sauce card with a 9:52 timer and a Done slider. A notice above it says Add pasta comes back in 4 min, and a small ring at the top right counts down 4 minutes.
The one-by.one app: a wait keeps counting, and its card comes back.

Home Screen widgets (small and medium) and a Lock Screen widget show the current card. Start or finish it from either without opening the app; on the Home Screen you can also skip it. The small widget also shows in StandBy.

A one-by.one medium widget on an iPhone Home Screen showing the current card, Dinner, with 1:23 elapsed and a lime Resume button.
The current card, run from the Home Screen.

Where one-by.one is not better

Tiimo or one-by.one: which to pick