Comparison

Calmie vs ThunDroid AI

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

Head to head
About

Calmie

Features
Read full description

Calmie is a privacy first meditation app for Apple devices. It helps you pause, breathe, and build a gentle mindfulness habit without ads, accounts, subscriptions, or unnecessary friction. Use Calmie for guided breathing, quiet meditation, sleep support, and a calmer daily reset. The app combines a clean SwiftUI interface with thoughtful Apple ecosystem features so the experience stays simple, polished, and easy to return to. What you can do in Calmie: Guided breathing with Box, Gentle Breath, Coherent Breathing, 4 7 8, and Energize Just Sit sessions with a midpoint bell Sleep soundscapes with ocean, rain, storm, and white noise Progress tracking with streaks, totals, moods, and notes Reminders to help you return to the habit gently Widgets, Live Activities, and Dynamic Island support Apple Watch companion support and cross device sync Siri Shortcuts and App Intents Optional Apple Health mindful minutes integration ADHD Mode and Chronic Pain Mode for a softer start Theme choices with Dusk, Midnight, and Ember Alternate app icons and a calm, native visual style Calmie stores your session data locally and keeps the core experience private by default. Apple Health integration is optional and only used when you choose to enable it. If you want a meditation app that feels quiet, focused, and native to Apple platforms, Calmie is built for that.

About

ThunDroid AI

This app offers AI-powered mental wellness support, integrating CBT, DBT, and ACT therapy frameworks. It features guided breathing exercises, an intelligent journal, and a live voice mode for real-time interaction, all designed to help manage stress and emotions.

Highlights
  • AI-powered CBT, DBT, ACT therapy frameworks
  • Stanford-validated cyclic sighing stress reset
  • 13 guided breathing techniques
  • Live voice mode for AI interaction
  • Intelligent journal with 15 templates
  • On-device AES-256 encryption for privacy
Features
Read full description

Talk to an AI companion that actually knows therapy. ThunDroid is built on CBT, DBT, and ACT the three evidence-based frameworks used by licensed therapists worldwide. Not a mood app. Not cheerful platitudes. A clinical-depth companion for the moments therapy isn't available. SPEAK, DON'T TYPE - LIVE VOICE MODE When you're overwhelmed, typing is the last thing you want. Talk naturally; ThunDroid listens and responds with clinical depth in real time. ALL THREE FRAMEWORKS. MOST APPS PICK ONE. CBT thought records to challenge anxious thinking. DBT diary cards to regulate intense emotions. ACT defusion to stop avoiding what hurts. Guided by AI that adapts to your patterns over time. STOP A SPIRAL IN 5 MINUTES STANFORD-VALIDATED Cyclic sighing reduced anxiety faster than mindfulness meditation in a Stanford study. Guided visuals, haptic feedback, works fully offline. Plus 12 more techniques: Box Breathing, 4-7-8, Wim Hof, Resonance, Alternate Nostril, and more. A JOURNAL YOU'LL ACTUALLY USE 15 guided templates - CBT Thought Record, DBT Diary Card, Gratitude, Sleep Reflection, Goals - with mood scores, streaks, and history. Every entry encrypted on your device with AES-256. PRIVACY THAT MEANS SOMETHING Your journal stays on your iPhone, protected by AES-256 encryption. Your entries are never sold or shared. WHAT USERS SAY "The first AI that actually responds like it understands CBT." "The breathing exercises genuinely helped during stressful moments." "The journal templates are the reason I actually journal consistently now." Start with 3 days free. Full access. Cancel anytime. Privacy Policy: https://aetherrax.com/privacy-policy/ Terms of Use: https://aetherrax.com/terms-of-service/

Screenshots

Calmie4 screens
ThunDroid AI4 screens

Verdict

The call

The clearest difference is in-app purchases: Calmie at none against ThunDroid AI's 1. Calmie also leads on device support (3 vs 1). On price, update cadence, ads and iOS requirement 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. ThunDroid AI sells 1 in-app purchase, starting at $12.99 per month. Calmie asks for nothing beyond the download.

UpkeepUpdate frequency

Calmie ships an update every 8 days, ThunDroid AI every 2 weeks. The most recent releases landed on September 14, 2026 and September 24, 2026 respectively.

Scorecard2 real differences · 7 level
Calmie versus ThunDroid AI: the parameters behind the verdict, then further details
ParameterCalmieThunDroid AI
PriceFreeFree
Rating1.0 (1 ratings) — better
Number of ratings1 — better
Update frequencyEvery 8 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreemium
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS16.4 — better17.6
Further details — not scored
Size152 MB31 MB
Age rating4+17+
DeveloperMateusz MlynarskiAetherrax Technologies

In-app purchases

None

Calmie

No in-app purchases

1 purchases

ThunDroid AI

Subscriptions1
  • ThunDroid Membership3 Days trial$12.991 Month

Questions

Is Calmie free?
Calmie is free to download, with no in-app purchases.
Is ThunDroid AI free?
ThunDroid AI is free to download, with in-app purchases available.
Do Calmie or ThunDroid AI have ads?
Neither Calmie nor ThunDroid AI shows ads.
Which is updated more often, Calmie or ThunDroid AI?
Calmie ships an update every 8 days, and ThunDroid AI every 2 weeks. Most recently, Calmie was updated on September 14, 2026 and ThunDroid AI on September 24, 2026.

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