Comparison

Winter Arc vs Unthink

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Winter Arc

Features
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YOUR RULES Before day one you write your own rules. Three to seven of them, small enough to do on your worst day. Your rules can change whenever your life does: add one, drop one or reword one on any day, and the days you have already held stay exactly as you held them. WHO YOU ARE BECOMING Four stats, BODY, MIND, GRIND and IRON, drawn from the rules you actually wrote. Watch the shape change across ninety days. The most honest picture of a season you will get, you never chose the numbers, you chose the habits. EVERY DAY YOU SHOWED UP Tap the day number for your calendar: every day you held, every shield that covered you, every day still to come. DAY 90 Add a progress photo whenever you want. They stay on your phone, nowhere else. On the final day they play back as a summit montage, first day to last, beside everything you held and banked. THE MOUNTAIN Your home screen is a climb, not a list. Every day you hold your rules the climber moves up the face, past the treeline, onto the ridge, into the summit push. START ANY DAY Missed October 1? Nothing is lost. Pick your start date when you set up, today or any day ahead, and the app builds the same climb, the same camps and the same summit from there. A winter arc that starts on November 3 is still a winter arc. THE DAILY CHECK-IN The work is yours: the training, the pages, the early nights. Logging it is the quick part. Open the app, tick what you did, close it. Change your mind any time the same day; nothing is final until the day is. STREAK SHIELDS Miss a day and a shield goes instead of your arc. Your gear covers it and the climb continues. No red screen, no broken chain, no starting again from zero. WEEKLY BOSSES Each camp opens a challenge built from your own rules: one of them before 6am, seven days in a row, or done somewhere that is not home. Complete it and you bank a streak shield. Skip it and nothing changes. A challenge is an offer, never an obligation. AURA AND RANKS Every rule you close banks aura, and aura carries you through five ranks: Basecamp, Treeline, Ridgeline, Summit push, Summited. EVERY WEEK CLOSES Seven days make a camp, and each one ends with a recap of what you actually did rather than what you meant to do. Hold every day and the camp is perfect, which banks you a shield. WRITE THE DAY DOWN A line a day, if you want one. A sentence from a book, a note about why it was hard, a photo from the gym. They collect into a private timeline you can scroll back through from day one. A REMINDER THAT KNOWS WHEN TO STOP One nudge at the hour you pick, an optional evening save if the day is still open, and nothing at all once your arc is done. It ends when the season ends. BUILT TO BE LOOKED AT Two themes: Summit, dark and cold and quiet, or Glow, warm and light. Home screen and lock screen widgets so today sits one glance away and one tap from done. PRIVATE No account, no sign up, no feed, no leaderboard. Your arc lives on your phone and in your own iCloud, so it survives a new phone and a reinstall. None of it comes to us. Every screen opens before you decide anything, and Pro starts with a free week for eligible new subscribers, then renews automatically unless cancelled. Terms of Use: https://winterarcchallenge.app/terms Privacy Policy: https://winterarcchallenge.app/privacy

About

Unthink

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Your heart is racing. Your thoughts are looping. It's 1 am and you're replaying one sentence from three days ago. Unthink is made for exactly that moment. Open the app. Tap what you feel. Follow one guided minute. No course to finish. No streak to keep. No feed to scroll. Just one small thing to do right now, and then the next one if you need it. HOW IT WORKS • Six buttons, one for each kind of moment: heart racing, thoughts spiraling, can't sleep, overthinking about someone, restless, or just off. • Unthink picks a short exercise that fits. Most take about 60 seconds. • Afterwards it asks one question: better? If not, it offers a different one. • Around people? One switch, and you only get exercises nobody will notice. • At night the app turns dark and quiet on its own. WHAT'S INSIDE • Bloom, an AI assistant you can write to: tell it what is going round in your head, or paste the message you don't know how to answer. It helps you sort it and offers one exercise that fits. Bloom is an AI, not a therapist. • 26 guided exercises: breathing, grounding, body, thinking tools, sleep, and moments around other people. Each one explains in a sentence why it works. • Fact vs. Story: separate what actually happened from what your mind added. Stuck? Ask Bloom for other explanations. Keep the card. • Park the Message: write the text you want to send right now. Decide in 30 minutes. • Reality Check: park a worry, say what you fear, pick a date. Later, Unthink asks what really happened, and over time you see how often the fear was bigger than the outcome. • Wind Down: a quiet evening sequence of 5 or 12 minutes that ends without a finish line. • Your patterns: what works for you, when hard moments tend to show up, and how your worries compared with reality. • A widget for your Lock Screen and Home Screen: one tap to a calming minute. It never says what it's for. • One gentle check-in a day, at a time you choose. Or none at all. PRIVATE BY DESIGN • No account. No ads. No tracking. No analytics. • What you write and do stays on your phone. We never see it. • The one exception is Bloom, and only if you switch it on: what you write to Bloom is sent to Anthropic, whose AI writes the reply. It is not used to train AI, and Unthink keeps no copy. • One button deletes everything. PREMIUM Your first guided minute and the help screen are free. Unthink Premium unlocks all 26 exercises, Bloom, the three tools, Wind Down, your patterns and favorites. Try it free for 3 days. Bloom comes with a monthly allowance. • Monthly and yearly plans. The current price is shown in the app before you buy. • Payment is charged to your Apple ID at confirmation of purchase. • The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period. • Manage or cancel any time in your App Store account settings. ONE HONEST THING Unthink is a self-help tool. It is not a medical device, it doesn't diagnose or treat anything, and it doesn't replace therapy or medical care. If you are in crisis, please call your local emergency number or a crisis line. The app's help screen lists numbers for several countries and is always free. Terms of Use: https://getunthink.app/terms Privacy Policy: https://getunthink.app/privacy

Screenshots

Winter Arc4 screens
Unthink4 screens

Verdict

The call

The clearest difference is update cadence: Winter Arc at every 5 days against Unthink's every 3 weeks. Unthink's advantage is iOS requirement (16.4 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Winter Arc sells 3 in-app purchases, starting at $7.99 per month and Unthink sells 2 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Winter Arc ships an update every 5 days, Unthink every 3 weeks. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

Scorecard2 real differences Ā· 4 level
Winter Arc versus Unthink: the parameters behind the verdict, then further details
ParameterWinter ArcUnthink
PriceFreeFree
Update frequencyEvery 5 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad — betteriPhone
Requires iOS18.016.4 — better
Further details — not scored
Size6 MB53 MB
Age rating4+17+
DeveloperMoonshot Media LimitedNico Lange

In-app purchases

3 purchases

Winter Arc

Subscriptions2
  • Winter Arc Monthly7 Days trial$7.991 Month
  • Winter Arc Yearly7 Days trial$24.991 Year
One-time1
  • Winter Arc Lifetime$34.99
2 purchases

Unthink

Subscriptions2
  • Monthly$8.991 Month
  • Yearly3 Days trial$44.991 Year

Questions

Is Winter Arc free?
Winter Arc is free to download, with in-app purchases available.
Is Unthink free?
Unthink is free to download, with in-app purchases available.
Do Winter Arc or Unthink have ads?
Neither Winter Arc nor Unthink shows ads.
Which is updated more often, Winter Arc or Unthink?
Winter Arc ships an update every 5 days, and Unthink every 3 weeks. Most recently, Winter Arc was updated on October 28, 2026 and Unthink on October 24, 2026.

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