Comparison

ThunDroid AI vs MEFlow

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

Head to head
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

ThunDroid AI is your personal intelligence. It is an AI companion for feelings and ordinary days: talk when you need someone, write when you need to see a pattern, and breathe when your body is ahead of you. TALK Speak in Live Voice, or type. ThunDroid draws on CBT, DBT, and ACT, three approaches used in therapy, and stays with what you have already said. It is a companion for the moments between sessions. It does not replace a clinician. JOURNAL Fifteen guided templates, including a CBT thought record, a DBT diary card, gratitude, sleep, and goals, plus mood, streaks, and history. Journal entries are encrypted on your device with AES-256-GCM. BREATHE Thirteen guided techniques, including cyclic sighing, the exercise a Stanford study found reduced anxiety faster than mindfulness meditation, plus box breathing, 4-7-8, resonance, alternate nostril, and the Wim Hof method. Visual guides and haptic cues. Breathing works offline. PRIVACY Chat is sent over a secure connection to ThunDroid’s servers so the companion can respond. Your journal is different: it stays on your device, protected with AES-256-GCM. ThunDroid does not sell your journal or your conversations. Start with 3 days free. Full access. Cancel anytime. Privacy Policy: https://aetherrax.com/privacy-policy-aetherrax-technologies/ Terms of Use: https://aetherrax.com/terms-of-service-aetherrax-technologies/

About

MEFlow

This app uses EEG headbands to create immersive relaxation experiences with adaptive audio and visuals that respond to your brain activity. It offers mind-to-mind communication and smart home integration for a unique wellness journey.

Highlights
  • EEG-powered adaptive audio and visuals
  • Mind-to-mind communication
  • Smart home lighting integration
  • Living nature relaxation scenes
  • Adaptive ASMR and brown noise
  • Pomodoro-style timer
  • Calm statistics tracking
Features
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MEFlow is a mind-responsive relaxation app powered by user-friendly EEG headbands to create immersive scenes and adaptive audio that evolve as you relax. Turn your Calm into responsive, layered music where each instrument sounds clearer as your mind settles. Mind-to-mind communication with shared Calm lets you privately socialize on a deeper level beyond the words. With Apple HomeKit and Google Home lights integration, your mind now extends beyond the screen, allowing the lights in your room to change color. Supported EEG devices include: - BrainBit Headband - BrainBit Mindo - BrainLink Pro and more. See the full list on our website: https://mindextend.com/meflow Use MEFlow to: - Drift into relaxation with living nature scenes that gently respond to your brain activity. - Listen to adaptive ASMR textures and brown noise tuned to your current calm level. - Support deep-work or study blocks with a built-in Pomodoro-style timer. - Check calm statistics to see how your sessions compare over time. Disclaimer: MEFlow is a general wellness app for meditation, relaxation, and biofeedback. It is not a medical device and does not provide medical advice. MEFlow is not intended to diagnose, treat, cure, or prevent any disease. Always seek a doctor's advice in addition to using this app and before making any medical decisions.

Screenshots

ThunDroid AI4 screens
MEFlow4 screens

Verdict

The call

The clearest difference is in-app purchases: MEFlow at none against ThunDroid AI's 1. MEFlow also leads on device support (3 vs 1) and iOS requirement (15.5 vs 17.6). On price, update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ThunDroid AI sells 1 in-app purchase, starting at $12.99 per month. MEFlow asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on November 5, 2026 and November 9, 2026 respectively.

Scorecard4 real differences · 5 level
ThunDroid AI versus MEFlow: the parameters behind the verdict, then further details
ParameterThunDroid AIMEFlow
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 2 weeksEvery 2 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.615.5 — better
Further details — not scored
Size32 MB332 MB
Age rating17+4+
DeveloperAetherrax TechnologiesMindExtend AI LLC

Customer experience

ThunDroid AI

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

MEFlow

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

ThunDroid AI

Subscriptions1
  • ThunDroid Membership3 Days trial$12.991 Month
None

MEFlow

No in-app purchases

Questions

Is ThunDroid AI free?
ThunDroid AI is free to download, with in-app purchases available.
Is MEFlow free?
MEFlow is free to download, with no in-app purchases.
Do ThunDroid AI or MEFlow have ads?
Neither ThunDroid AI nor MEFlow shows ads.
Which is updated more often, ThunDroid AI or MEFlow?
ThunDroid AI ships an update every 2 weeks, and MEFlow every 2 weeks. Most recently, ThunDroid AI was updated on November 5, 2026 and MEFlow on November 9, 2026.

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