
Sukki: Stop Overthinking
Private CBT Thought Diary
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About
When a thought won't let go, look at it again.
It's late, and one thing someone said won't stop replaying. Sukki walks you through it one calm question at a time, using a CBT thought record: what set it off, what's going through your mind, how it feels, and whether the thought holds up.
HOW A SESSION WORKS
• What set this off? Name the moment, just the facts.
• What's going through your mind? Catch the thoughts and rate how strong each feeling is.
• Which thought weighs the most? Pick it and rate how much you believe it right now.
• Look again. Five quick angles, and you can skip any that don't fit: the evidence for and against, another explanation, the worst, best and most likely outcome, what you'd tell a friend, and what you could actually do.
• Write one truer sentence. Not forced positivity, just fairer. Then rate the thought and your feelings again and see what shifted.
SOMETIMES THE WORRY IS REAL
Sukki won't tell you to just think positive. When a thought is partly true, it helps you decide one small thing you could do, and keeps it on your home screen as your next step.
STUCK? ASK FOR A NUDGE
Help is optional. Tap it on any step for a question that gets you unstuck, or a draft answer you can edit into your own words. On iPhones with Apple Intelligence, Help runs on your device.
PRIVATE BY DESIGN
• Your journal lives on your iPhone. No account, no sign-up.
• Lock it with Face ID.
• Export your entries as text whenever you like.
• On iPhones without Apple Intelligence, Help can use our secure server instead, but only after you say yes. It uses what you've written in that session to answer, and nothing is kept or used for training.
MADE FOR
• Overthinking, spiralling and replaying conversations
• CBT homework between therapy sessions
• Keeping up what you learned in therapy
• Anyone curious to try a thought record
Sukki is a self-help tool, not therapy or medical care, and it isn't for emergencies. If you're in crisis, contact your local emergency number or a crisis line (in the US, call or text 988).
SUKKI PRO
Sukki offers an optional auto-renewing subscription, Sukki Pro, with weekly and yearly plans. Sukki Pro unlocks unlimited sessions and Help, and Sharper Help on any iPhone. Payment is charged to your Apple ID when you confirm your purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period, and renewal is charged within the 24 hours before the period ends. Manage or cancel any time in your Apple ID account settings. Any unused portion of a trial period is forfeited when you buy a subscription.
Terms of Use: https://sukkiapp.com/terms
Privacy Policy: https://sukkiapp.com/privacy
Why "Sukki"? It comes from the Japanese すっきり (sukkiri): the clear, light feeling after a weight lifts.
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What's New in Sukki
1.0
October 24, 2026
2
Subscriptions & In-App Purchases
Sukki Pro – Yearly
Unlimited Help, billed once a year
$49.991 Year
7 Days trial






