Crest vs Interrupt
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Crest
This app helps you manage cravings and impulses by guiding you through a calming visualization of your urge's journey. It offers various coping tools and progress tracking to help you overcome unwanted behaviors.
- Wave visualization for urges
- Four urge phases: Rise, Crest, Fall, Calm
- 8 coping tools (breathe, ground, affirm, etc.)
- Streak and progress tracking
- Group challenges with friends
- Privacy-focused, no data collection
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Every urge rises, peaks, and fades. Like a wave. Most peak within 8 to 15 minutes and then pass on their own. Almost nobody finds that out, because giving in ends it sooner. Crest gives you somewhere to wait. HOW IT WORKS An urge hits. You tap Surf Now. The wave rises with you, and Crest tells you where you are on it: what your body is doing, how much is left, and the moment you've hit the peak. Gentle haptics mark each phase. One tool is suggested if you want your hands busy. When it passes, you log it. That's the whole loop. One tap to start, one to finish. A JOURNAL THAT FILLS ITSELF IN Most journals are a blank page you abandon after a week. Crest's is full before you type anything. Every day you logged an urge colours itself by how hard that day was, so a month is a picture instead of a list. Tap the month name to pull back and read a whole year at a glance. Tap any day to see what happened and add a line about it. Nothing nags you to write. It's there on the days you want it. PROOF THAT URGES PASS You tell Crest how strong an urge was at its worst, and how strong it was by the end. Those two numbers turn into evidence: how far your urges actually drop, how long it takes, and how many times you've now proved it to yourself. "47 of the 50 you rated ended lower. Hit you at 7, left you at 3." Give it a couple of months and it answers a better question: whether your urges are fading further than they used to. SLIPS ARE DATA, NOT FAILURES Gave in? Log it. Nothing breaks, no score drops, no lecture. Crest asks what set it off, because the triggers that beat you are the most useful thing it can learn about you. You'll see them in their own list, separate from the ones you ride out. DECIDE BEFORE THE URGE ARRIVES The best evidenced thing in habit change is deciding in advance: when this happens, I will do that. Crest writes the first draft for you, from what actually beats you, then puts it on your Home Screen, on your widget, and in front of you the moment an urge starts. IT LEARNS WHAT WORKS FOR YOU Eight tools: breathe, ground, affirm, journal, body scan, cold, move, delay. After a surf, Crest asks one question. Did anything help? Over time it stops offering you eight options at the worst possible moment and starts offering the one that works. EVERYTHING IN CREST • The wave, drawn in real time, through four phases: Rise, Crest, Fall, Calm • A Journal that fills itself in, by month and by year • Eight coping tools, and a toolkit that learns which ones work for you • Your plan, written before you need it • Proof that your urges fade, in your own numbers • Patterns: when urges hit you, and which triggers win • Log an urge that already passed, without running a timer • Countdown or count up, your choice • An optional heads-up shortly before your usual window • Home Screen and Lock Screen widgets, Live Activity, and Siri • Private iCloud sync across your devices PRIVATE BY DESIGN No account, ever. There's nothing to sign up for. No analytics, no tracking, no ads. There is no third-party SDK in the app. No servers of ours. Your surfs sync through your own private iCloud, and nobody but you can read them. No feed and no leaderboard, because the last thing anyone needs is somewhere to broadcast a bad night. WORKS FOR Food. Doom scrolling. Shopping. Gaming. Procrastination. Any habit you're trying to break. And anything else you name yourself. Crest doesn't care what the urge is, only that it passes. Free. No ads, no subscription, no paywall. You've got this.
Interrupt
This app helps you break negative thought cycles with quick, targeted reframes. Access instant interventions via widgets or Apple Watch complications to manage stress, overthinking, and imposter syndrome. It offers personalized options and tracks your thought patterns with a focus on privacy.
- Instant intervention widgets and Apple Watch complications
- Curated library of Stoic wisdom and CBT reframes
- Personalized custom emotional triggers and notes
- Automatic charts for tracking thought patterns
- Air-gapped privacy with local data storage
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Break the cycle of overthinking in seconds. We all get stuck in thought loops. Whether it’s a sudden wave of imposter syndrome, spiraling stress, or negative self-talk, getting out of your own head is the hardest step. Interrupt is a lightweight, privacy-first mental health companion designed to help you catch and break these cycles the exact moment they happen. Instead of long-form journaling or 10-minute meditations, Interrupt focuses on immediate cognitive redirection. With a single tap on your Home Screen widget or Apple Watch, you are presented with a highly targeted, grounding reframe to help you take a breath and regain perspective. HOW IT WORKS: Notice: Catch yourself ruminating or stressing. Trigger: Tap the app, widget, or Apple Watch complication. Select: Choose your current emotion (Stress, Overthinking, Imposter Syndrome, etc.). Reset: Read a curated reframe, take a deep breath, and let the thought go. FEATURES: • Instant Intervention: Deep-linked widgets and Apple Watch complications mean relief is always just one tap away. Bypassing menus, you get what you need instantly. • The "Essentials" Library: Comes pre-loaded with a curated mix of Stoic wisdom, cognitive behavioral reframes, and somatic grounding cues. • Highly Personalized: Add your own custom emotional triggers. Build your personal "Custom Notes" library with messages to your Future Self or "Proof of Wins" to remind you of your resilience. • Actionable Insights: Beautiful, automatic charts track exactly when and why you ruminate, helping you identify time-of-day patterns and your most common triggers. • Air-Gapped Privacy: Your mind is your own. All of your emotional data and custom notes are stored strictly on your local device. We do not collect, read, or transmit your personal data. Interrupt is not a cure, but a circuit breaker. Take back your attention, one thought at a time. Disclaimer: Interrupt is designed solely as a self-help and educational tool for momentary cognitive redirection. It is not a medical device, nor is it a substitute for professional medical advice, diagnosis, psychiatric therapy, or healthcare treatment. The use of this app does not establish a doctor-patient or therapist-client relationship. Never disregard or delay seeking professional medical or mental health advice because of something you have read in this app. If you are experiencing a medical emergency, mental health crisis, or having thoughts of self-harm, please call 911, dial the 988 Suicide & Crisis Lifeline, or contact your local emergency services immediately.
Screenshots
Verdict
The clearest difference is in-app purchases: Crest at none against Interrupt's 10. Crest also leads on ratings volume (18 vs 1). On price, rating, review sentiment and update cadence there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Interrupt sells 10 one-off in-app purchases. Crest asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.9 for Crest against 5.0 for Interrupt. That said, the two scores are not equally well evidenced: Crest has 18 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
Both ship on a similar rhythm, roughly every 2 weeks. Both last shipped on October 24, 2026.
| Parameter | Crest | Interrupt |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (18 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 18 — better | 1 |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone | iPhone, Apple Watch — better |
| Requires iOS | 17.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 3 MB | 5 MB |
| Age rating | 12+ | 4+ |
| Developer | Alejandro Beracasa | Michael Brockman |
Customer experience
Crest
Interrupt
In-app purchases
Crest
No in-app purchases
Interrupt
- Stoic Pack$0.99
- Women in Science$0.99
- Earned It$0.99
Show 7 moreShow fewer
- Be Kind to Yourself$0.99
- Daily Courage$0.99
- Bounce Back$0.99
- Grounding Cues$0.99
- Progress Over Perfection$0.99
- Stop Comparing$0.99
- Voices of Courage$0.99









