Most planners start from an empty week. “What if” starts from yours: your Yuki events, timed tasks and bookings and, if Google is connected, your Google Calendar busy times. It only sees when you are busy, never what your Google events are called. Tell it what you would like to fit, and it shows your week now and with the plan.
How it works
- 1Open Calendar and tap What if, on your phone or on the web.
- 2Add what you would like to fit: pick an idea such as Reading, Learn a language or Family time, or add your own, up to six at once.
- 3For each one, choose Times a week and how long each time (15 minutes to 3 hours), or Hours a week. Pick a time of day (any time, mornings, afternoons or evenings) and, if you like, Not on weekends. You can also say when your day starts and ends.
- 4Look at the week with the plan. Grey is what is already on your calendar, and it stays put; the coloured blocks are new. The balance shows the hours already busy, the new blocks and what is left unscheduled, with one line on how it went, such as “I could fit 3 of 4 Exercise sessions; 45 minutes each would fit them all.”
- 5Save a scenario to compare it with another, or tap Add these to my calendar.
- 6One approval card lists every new block. Nothing changes until you tap Allow.
Fixed rules, not guesses
An AI does not decide your week. The same rules run every time, whatever you are fitting in:
- What is already there stays where it is. New blocks go around it, with 15 minutes of room on either side.
- Things take turns. Each one gets a block in turn, so the first on your list can’t take all the best slots.
- Your time of day comes first. Mornings, afternoons or evenings are tried first, then any time of your day if they are full. Not on weekends is strict.
- Spread across the week. Times a week go one a day at most. Hours a week go in blocks of up to an hour, never more than four hours of one thing on one day.
- Lunch and dinner stay free unless nothing else fits. If a block has to use a meal time, it tells you.
- Nothing in the past, and nothing at a time it could not read.
Or just ask
In chat on your phone, ask “What if I read 4 times a week for half an hour?” and Yuki answers with a before-and-after card of your week. Adding those blocks goes through the same approval card.
What it doesn’t do. It only adds blocks to Yuki’s calendar. It never moves or deletes anything that is already there, and it does not write to Google Calendar. If Google is connected but can’t be read, it says so and places nothing rather than guess: unknown is not free. If Google isn’t connected, it plans from Yuki’s calendar and tells you.
Free for everyone. No plan needed. Only you see your scenarios, and a plan’s blocks can be removed together whenever you like.
Try next week before you live it.
Already have an account? Open What if
Frequently asked questions
Is “What if” free?
Yes. It is free for everyone, with no plan or trial needed. It is in the current Yuki app on iPhone and Android, and on the web at yukihq.com/app/what-if.
What can I fit in?
Anything you want more time for. Pick an idea, such as reading, family time, a language, exercise, a side project, date night, meal prep, focus work or rest, or type your own, up to six at once. Each one is either a number of times a week of a set length, or a number of hours a week.
Does it change my Google Calendar?
No. It reads when you are busy in Google Calendar, never what your events are called, and adds new blocks to Yuki’s calendar only. It never moves, deletes or writes anything in Google Calendar.
What if Google Calendar can’t be read?
It tells you and doesn’t guess. Time it couldn’t read is not treated as free, so no blocks are placed there; reconnect Google and try again. If you haven’t connected Google, it plans from Yuki’s calendar and says so.
Can I undo it?
Yes. Undo on the approval card, or Remove this plan’s blocks, takes off exactly the blocks that plan added. Nothing else on your calendar changes. Deleting a saved scenario leaves blocks you already added where they are.
Does an AI plan my week?
No. Fixed rules place the blocks, the same way every time, so the same week and the same plan give the same blocks. In chat, Yuki only picks up what you asked to fit and explains the result.