Keep changing your mind
Every update adds context. The history matters as much as the final number.
A prediction journal for iPhone
Turn your maybes into a track record.
Ask a question about your own future, put a number on how sure you are, and update it when life changes. Probably helps you notice how your judgment develops — privately, or with a few people you trust.
See how it worksComing soon on the App Store
- Local first
- Optional Probably Together groups
- No public profiles
Will the proposal be ready by Friday?
Your forecast68%
probably
New information?Move your forecast. The history stays visible.
A calmer way to think ahead
Not a fortune teller. A journal for your judgment.
Probably does not make predictions for you. It gives your own uncertainty a place to live, change, and become useful. You get a clearer memory of what you believed — not just the story you tell yourself afterward.
The loop
Ask. Forecast. Learn.
Ask a real question
Choose something you will genuinely be able to answer later — from a small personal plan to a shared decision.
Put a number on it
Record how likely you think it is, then update your forecast whenever new information changes your mind.
Resolve and reflect
When the answer arrives, close the question and let your track record grow one honest forecast at a time.
Think together
One question. Different points of view.
Share a prediction with a small private group. Everyone keeps their own forecast, so agreement and disagreement become visible without turning the conversation into a competition.
Probably Together is sponsored by one subscribed organizer for a group of up to eight people. Invited members join and participate without purchasing their own subscription; the personal journal stays free.
Mara 72%
Alex 58%
You 68%
Local first
Your private questions can stay private.
Personal predictions are stored on your device. Nothing is sent to the group service unless you choose to share it with your group.
- Personal predictions stay on your iPhone.
- Probably Together is optional and limited to one small private group.
- No email address or password is required to join a group.
- You can leave a group and keep your own predictions.
Built for reflection
A useful record, not another feed.
See your calibration
Resolved forecasts gradually show where your confidence matches reality.
Start from a useful idea
Curated prompts help you find a question worth answering, then make it yours.
Probably for iPhone
The future is uncertain. Your memory does not have to be.
Probably is coming soon on the App Store. In the meantime, support and complete privacy information are available here.
App Store launch coming soonGet support