Comparison

Nafas vs DidntHappen

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

Head to head
About

Nafas

This app guides users through slow breathing exercises to combat hyperventilation, reduce anxiety and depression, and improve sleep quality. It offers various levels based on your current breathing rate, including a specific mode for falling asleep.

Highlights
  • Slow breathing exercises
  • Anxiety and depression reduction
  • Improved sleep quality
  • Adjustable breathing levels
  • 4-7-8 sleep mode
  • Hyperventilation management
Features
Read full description

Our application is developed in order to reproduce exercices that will help your body come back to slow breathing, thus increasing CO2 and its protectives effects. Increasing CO2 and stop hyperventilation will help with anxiety, depression and all type of degenerative issue. It will also increase the quality of sleep which will have a direct impact on your regeneration and stabilize nervous system. Hyperventilation Repetitive stress trigger our body to breathe faster due to the emergency response. This is called Hyperventilation. Hyperventilation trigger anxiety which trigger more hyperventilation and all type of degenerative diseases (anxiety, depression, asthma, hypertension, hypothyroidism, gastritis, diabetes and others). Famous Ukranian Doctor Buteyko said : « Hyperventilation is the cause of all diseases of today ». The Application According to numerous studies, healthy people have slow breathing (around 6 per minute). In the preview document for exemple we can read : Slow respiration at 6 breaths per min was found to be optimal for improving alveolar ventilation and reducing dead space in both groups in terms of increased arterial oxygen saturation and ease and sustainability in terms of respiratory effort. Many other studies exist about that, and also several traditional rituals such as old Chinese Taichi where the main goal was to control your breath in order to feel well. The application provides large scale of level depending on your initial situation. If you are high hyperventilating and really anxious begin with low level (12 breaths per minute) and train with that until you feel confident. Then switch to the next level (11 breaths per minute) and continue this process until you reach slow breathing levels (6/7/8 breaths per minute). If your initial level is higher feel free to adapt yourself and train until you can slow your breath again. Sleeping Mode Anxiety is often characterized by over-stimulation of nervous system which can trigger panic attack caused mainly by hyperventilation. Dr. Andrew Weil has developed on the same principle a very helpful breathing technique to fall asleep and reduce stress at night : The 4 7 8 ! The 4-7-8 breathing technique is a breathing pattern developed by Dr. Andrew Weil. It’s based on an ancient yogic technique called pranayama, which helps practitioners gain control over their breathing. The 4-7-8 technique forces the mind and body to focus on regulating the breath, rather than replaying your worries when you lie down at night. Proponents claim it can soothe a racing heart or calm frazzled nerves. Dr. Weil has even described it as a « natural tranquilizer for the nervous system« . The method is simple : Breathe in 4 seconds, Hold breathe 7 seconds, Exhale 8 seconds until you free your mind, relax and sleep. References The association of panic and hyperventilation with psychogenic non-epileptic seizures: A systematic review and meta-analysis https://pubmed.ncbi.nlm.nih.gov/29787922/ Panic, hyperventilation and perpetuation of anxiety https://pubmed.ncbi.nlm.nih.gov/11131173/ Understanding Hyperventilation Syndrome https://www.saintlukeskc.org/health-library/understanding-hyperventilation-syndrome Follow us Website : https://breathlifestudio.com/ Facebook : BreatheWithQuranApp https://www.facebook.com/breathewithquranapp/ Instagram : @breathewithquranapp https://www.instagram.com/breathewithquranapp/ Terms of Use (EULA) : https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

DidntHappen

Features
Read full description

Your brain predicts disaster. Prove it wrong. DidntHappen is a worry tracker and anxiety journal that measures the gap between what you fear and what actually happens. Not meditation. Not generic advice. Real evidence from your own life. Research shows 85-91% of predicted fears never come true (Penn State, 2019). Track your worries and see whether your estimates match reality. Seeing your own numbers makes the pattern harder to ignore. HOW IT WORKS LOG - Write a worry. Set a predicted probability (0-100%). Pick a deadline. WAIT - Your prediction sits untouched. RESOLVE - Did it happen, partially happen, or not at all? SEE THE GAP - Your Reality Gap Score tracks every prediction vs every outcome. YOUR REALITY GAP SCORE Most anxiety apps tell you to breathe. DidntHappen gives you proof. - What percent of your predicted fears never happened - How accurate your probability estimates really are - Which worry categories you overestimate most - Whether your prediction accuracy improves over time EVIDENCE-BASED TOOLS CBT - Decatastrophizing prompts: worst-case, best-case, most-likely scenarios. ACT - Cognitive defusion exercises and willingness tracking. DBT - Distress tolerance and emotional regulation techniques. 7-Day Worry Detox - A guided program for changing your relationship with worry. 10 Therapeutic Techniques - Interactive step-by-step exercises for anxiety, rumination, and overthinking. FEATURES Reality Score Ring - cumulative prediction accuracy as a live visual ring Reality Tree - grows as false alarms accumulate Mira AI Companion - chat about your worries with a supportive AI guide Pattern Detection - identifies recurring worry patterns across categories Breathing & Grounding - box breathing, ACT defusion, 5-4-3-2-1 sensory exercise Worry Categories - health, work, relationships, finances, social anxiety Weekly Reality Report - busiest worry day, category accuracy, false alarm rate Streak Tracking - milestone celebrations at 5, 10, 25, 50, 100 false alarms Shareable Stats Cards - share your Reality Gap on Instagram and more Invite Friends - referral system to help others track their anxiety Home Screen Widgets - reality gap and pending worries at a glance Privacy Screen - content blurs when app moves to background WHO IT'S FOR People dealing with generalized anxiety, health anxiety, social anxiety, work stress, intrusive thoughts, rumination, overthinking, or chronic worry. If your mind spirals into worst-case scenarios, DidntHappen helps you collect real evidence that your brain's threat detector is often overestimating risk. SUBSCRIPTION Free trial, then: - Weekly: $2.99/week - Annual: $59.99/year (save 61%) Full access from day one. No ads. Cancel anytime in Settings. PRIVACY-FIRST No advertising. No data selling. No third-party ad tracking. Sign in with Apple is supported. Delete your account and your app data is removed. NOT A MEDICAL DEVICE DidntHappen is a self-reflection and journaling tool. It does not diagnose, treat, or cure any mental health condition. If you're in crisis, please contact a licensed professional or local emergency services. 9 out of 10 fears never come true. Start logging. See the gap. Trust your brain less. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://didnthappen-web.vercel.app/privacy

Screenshots

Nafas4 screens
DidntHappen4 screens

Verdict

The call

The clearest difference is update cadence: DidntHappen at weekly against Nafas's every 3 months. Nafas's advantage is iOS requirement (15.0 vs 18.0). On price, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Nafas sells 2 in-app purchases, starting at $2.99 per month and DidntHappen sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Nafas ships an update every 3 months, DidntHappen weekly. The most recent releases landed on October 12, 2026 and October 16, 2026 respectively.

Scorecard2 real differences · 8 level
Nafas versus DidntHappen: the parameters behind the verdict, then further details
ParameterNafasDidntHappen
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 3 monthsWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18.0
Further details — not scored
Size44 MB26 MB
Age rating4+12+
DeveloperBreathLifeOnur Hseyin Kocak

In-app purchases

2 purchases

Nafas

Subscriptions1
  • Premium mode Monthly$2.991 Month
One-time1
  • Lifetime premium mode$5.99
3 purchases

DidntHappen

Subscriptions2
  • Premium Weekly3 Days trial$2.997 Days
  • Premium Yearly3 Days trial$59.991 Year
One-time1
  • 1-Year Premium Gift$59.99

Questions

Is Nafas free?
Nafas is free to download, with in-app purchases available.
Is DidntHappen free?
DidntHappen is free to download, with in-app purchases available.
Do Nafas or DidntHappen have ads?
Neither Nafas nor DidntHappen shows ads.
Which is updated more often, Nafas or DidntHappen?
Nafas ships an update every 3 months, and DidntHappen weekly. Most recently, Nafas was updated on October 12, 2026 and DidntHappen on October 16, 2026.

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