CortexOS vs Overthink Less
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CortexOS
This AI-powered journal learns your emotional patterns and personal growth over time. It offers private, on-device analysis and reflections, helping you understand yourself better through voice or text entries. Features include mood tracking, behavioral pattern identification, and AI-generated insights.
- On-device AI analysis
- Private Psyche layer for pattern recognition
- Memory recall of past entries
- Recognition of over 100 life situations
- 10-second check-ins (Pulse)
- Secure 'Vent & Burn' feature
- Behavioral pattern tracking
- AI-generated reflections and insights
Read full descriptionHide full description
CortexOS is the journal that learns who you are. Write or speak. CortexOS listens, understands your emotions, and gives you something no other journal can. Everything runs on your device. No cloud. No data harvesting. No one reads your words. Ever. EU AI Act compliant. YOUR AI GETS SMARTER OVER TIME Most journaling apps treat every entry like the first. CortexOS builds a private Psyche layer: a living picture of your patterns, your people, and your growth. Now in its second generation, it ages like real memory: what keeps proving true grows stronger, what you've outgrown quietly fades. IT REMEMBERS WHAT MATTERS Mention something in a reflection and CortexOS can recall the moment you wrote about it months ago. Your journal becomes a memory that works for you. IT UNDERSTANDS THE MOMENT YOU'RE IN A job loss is not a bad mood. A new baby is not just "tired." CortexOS recognizes over 100 life situations and meets each one the way a thoughtful friend would: knowing what helps, and what never to say. IT LEARNS WHAT LIFTS YOU It notices what weighs on you and what reliably helps. Rate your sessions and it learns your taste. Your AI, shaped by you. PULSE Tap a mood, write a sentence, save. A 10-second check-in for busy days. Counts in every mood trend, never uses up your monthly free entries. VENT & BURN A space for the heavy stuff. Speak or type. Audio is securely wiped after transcription. When you're done, the entry burns. Nothing left, anywhere. DEEP ANALYSIS ON EVERY ENTRY After you write, an on-device LLM reads between the lines: emotional patterns, cognitive habits, growth you might not see yourself. Entries save instantly. BEHAVIORAL PATTERNS Rumination, self-compassion, stress responses, growth. Trend chips show what's emerging, fading, stable. Nothing diagnosed. Just named, so you can notice it yourself. SELF-AWARENESS CARD What CortexOS has learned about you: themes, tendencies, what weighs on you, what helps. Written entirely by the on-device AI. Visible only to you. AI REFLECTIONS Talk through what's on your mind by text or voice. The AI remembers your themes, replies faster than ever, and asks questions that take you deeper. Never judged, never uploaded. VOICE JOURNALING Speak instead of type. On-device transcription catches every word, even long, winding entries. No internet needed. INSIGHTS & PATTERNS Track 20+ emotions over time. Spot mood trends, triggers, and the connections between life events and how you feel. CHAPTERS Every week becomes a chapter in your story. Auto-titled, themed, and summarized by AI. MIND WRAPPED A shareable card deck at entry milestones and at year-end, every card stamped "0 bytes sent anywhere". YEAR IN REVIEW Your year, told from your own words: your emotional arc, your chapters, the growth you might have missed. Built on-device. SMART NOTIFICATIONS Prompts drawn from what you've been writing about. Like a quiet tap from someone who knows you. ENTRY ECHOES & GHOST TEXT Old entries resurface to remind you what you've already told yourself. A gentle prompt appears when the page sits empty. THERAPIST REPORTS A shareable PDF of your patterns and trends. No journal content included. Just what your therapist actually needs. PRIVATE BY DESIGN - AES-256-GCM encryption on every entry - Even the AI's memory is encrypted at rest - Zero-knowledge cloud backup (we can't read your data) - On-device AI. Nothing sent to servers. - Optional Deep Recall language pack: sharper memory, still 100% on your phone - Screen recording and mirroring blocked at the system level - No email, no password. Recovery phrase only. Face ID / Touch ID. - No tracking. No ads. No exceptions. Built by a solo developer in Malta, Europe. No investors, no data deals. A journal that is yours alone. AI Disclosure: https://cortexos.app/ai-disclosure Trust Center: https://cortexos.app/trust Privacy Policy: https://cortexos.app/privacy Terms of Use: https://cortexos.app/terms Your Mind, Encrypted.
Overthink Less
Read full descriptionHide full description
When your mind won't let go of something, Overthink Less helps you step out of the loop in about two minutes. WHEN IT'S LOUD Tap "I'm overthinking right now." Three long breaths out settle your body first. Then untangle the thought with one simple technique — sort it, name it, step back, or be kind to yourself — and choose one small step for now, later today or tomorrow. It works with sound off. A DAILY PRACTICE, ONLY IF YOU WANT ONE A few quiet minutes in the evening to close the day's loops: settle what's still open, notice one thing that went okay, and set tomorrow's first step. Or in the morning, to start clear, with a place to park a worry until evening. Skip any day: there are no streaks, and nothing is counted against you. Each practice adds a thread to your Weave, a quiet record of the moments you showed up for yourself. 26 GUIDED PRACTICES • When it's a lot: Quick Reset, Panic Pause, Storm Pass, Ground in 90 Seconds • Untangle: Thought Loop Breaker, Decision Spiral Reset, Social Overthinking Reset, Close the Workday and more • Breathe: Box Breathing, 4-7-8 Breathing, Slow Descent • Ground: Barefoot Grounding, Water Break Reset, Morning Reset • Sleep: Night Wind-Down, Body Scan, Sleep Story, Quiet the 2am Mind, 3am Rescue GUIDES THAT END IN SOMETHING TO DO 20 short reads, like why the mind gets louder at night, how a thought becomes a spiral, or what to do when one message keeps replaying. Each one ends with a practice you can start right away. MADE TO BE CALM • Two narrator voices, Nora and Hearth, or no voice at all • Rain, ocean or night sounds under any practice • Soft haptics that pace your breathing, useful with your eyes closed • Start from Siri or the Shortcuts app: "Untangle a loop in Overthink Less" • Optional gentle reminders for your daily practice and your small steps PRIVATE BY DESIGN No account, no ads, no in-app purchases. What you write stays on your device. If you choose to share anonymous usage, the app sends only general facts, such as that an exercise was finished — never what you write. You can change your answer any time in Settings. Overthink Less is a self-help tool for everyday overthinking. It isn't medical or mental health care, and it isn't a crisis service. If you're in crisis, contact your local emergency number; Need more support? in the app links to helplines worldwide.
Screenshots
Verdict
The clearest difference is in-app purchases: Overthink Less at none against CortexOS's 3. Overthink Less also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). CortexOS's advantage is update cadence (every 5 days vs every 3 weeks). On price and ads 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. CortexOS sells 3 in-app purchases, starting at $7.99 per month. Overthink Less asks for nothing beyond the download.
CortexOS ships an update every 5 days, Overthink Less every 3 weeks. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.
| Parameter | CortexOS | Overthink Less |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 32 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | Orlin Ralinov Martinov | Nissim Shon Baranes |
In-app purchases
CortexOS
- Premium Monthly7 Days trial$7.991 Month
- Premium Yearly7 Days trial$49.991 Year
- Lifetime Access$99.99
Overthink Less
No in-app purchases









