Comparison

TwinMind vs M91

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

Head to head
About

TwinMind

This app acts as an AI-powered second brain, capturing and transcribing your conversations, meetings, and lectures. It automatically generates summaries, suggests tasks, and builds a searchable memory bank for personalized assistance and content generation, all while prioritizing user privacy.

Highlights
  • AI-powered transcription
  • Automated summaries and action items
  • Searchable memory bank
  • Personalized AI suggestions
  • Content generation (emails, study guides)
  • On-device transcription
  • Privacy-focused data handling
Features
Read full description

TwinMind captures everything you say and hear in your conversations, meetings, and lectures. It automatically transcribes, summarizes, and proactively offers suggestions, so you never forget anything and always know what's next. The app builds your Second Brain by capturing your life. Every capture builds TwinMind in the background, all day without draining your battery. It works in any of 140+ languages. The longer you use TwinMind, the more it can do for you. ASK YOUR LIFE ANYTHING Whatever the question, it answers from your conversations, email, and the web. One subscription covers pro ChatGPT, Claude and Gemini like Sol, Opus, Sonnet & Fable. YOUR SECOND BRAIN People and memorable moments get their own pages, updating daily. Days of captures read like an encyclopedia of your life. PREPARED BEFORE YOU ASK Your daily digest lands every morning with yesterday's highlights and today's priorities. Connect your calendar and email to get briefed on what's next, with replies already drafted. TURN CONVERSATIONS INTO CREATIONS Connect TwinMind to Claude or ChatGPT over MCP, and your memories become reports, prototypes, drafts, or anything you can describe. PRIVATE BY DESIGN Your audio & data are never saved by default. Offline on-device backup is available, and your information is never sold or used to train AI. TwinMind is SOC 2 Type II certified. How it works: • Tap Capture on your phone, watch, or laptop • Put the phone away; it transcribes in the background all day • Every capture becomes a memory, with the summary, action items, and transcript • Your second brain fills itself in with people, projects, and moments • Your daily digest arrives each morning with yesterday's highlights and your priorities • Chat across memories, with your email, calendar, and digital life included • Connect Claude or ChatGPT and turn memories into creations Try TwinMind on your next conversation. It's free, with unlimited transcription. Upgrade to Pro or Max for advanced features & the latest flagship models. Supported platforms: iPhone, iPad, Apple Watch, Mac, Windows, Android, Chrome Extension Top supported languages: English, Chinese (Simplified), Hindi (हिन्दी), Spanish (Español), French (Français), Arabic (العربية), Bengali (বাংলা), Portuguese (Português), Russian (Русский), Urdu (اردو), Indonesian (Bahasa Indonesia), German (Deutsch), Japanese (日本語), Nigerian Pidgin, Marathi (मराठी), Telugu (తెలుగు), Turkish (Türkçe), Tamil (தமிழ்), Cantonese (廣東話), Vietnamese (Tiếng Việt) Terms of Service: https://twinmind.com/terms-of-service/ Privacy Policy: https://twinmind.com/privacy-policy/

About

M91

Features
Read full description

TO MAKE ALERTING EASY Use M91 to turn any event, condition, or reminder that needs human attention into a clear, actionable alert. By Defining what needs attention, who needs to know, and how you want it handled. M91 takes care of delivering the alert to the right people and keeping track of what happens next. Use M91 whenever something needs a person's attention. You Can use M91 for various usecases: z • Health Alerts Alert caregivers or responsible people when a health-sensing system detects an important condition. • Operations Alerts Reach the right people when a service, application, or device needs attention. • Security Alerts Alert responsible people when an unauthorized entry or security event occurs. • Safety Alerts Reach people when a connected system detects a dangerous condition. • Business Alerts Notify the right people when an important event requires action. • Reminders Notify people when something needs to be completed, checked, approved, or acknowledged. AND MANY MORE. REACH THE RIGHT PEOPLE Send alerts to one person or multiple people at the same time using registered phone numbers. CHOOSE HOW THEY ARE ALERTED Choose the notification method and urgency that fits the alert, including regular notifications, urgent delivery, and configured phone-call escalation. DEFINE THE RESPONSE Give recipients simple choices based on what the alert requires. For example: "Approve" "Reject" "I'm handling it" "Already completed" A response can affect only that recipient or the alert for everyone receiving it. YOU DEFINE. M91 DELIVERS. M91 MANAGES. Tell M91 what needs attention, who needs to know, and how it should be handled. M91 delivers the alert, reaches the right people, records their responses, and manages the alert until it is handled, closed, or expires. From a simple reminder to an important health, safety, security, or system alert, use M91 whenever something needs human attention. M91 — Alerting made easy.

Screenshots

TwinMind4 screens
M914 screens

Verdict

The call

The clearest difference is in-app purchases: M91 at none against TwinMind's 10. M91 also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, ads 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. TwinMind sells 10 in-app purchases, starting at $14.99 per month. M91 asks for nothing beyond the download.

UpkeepUpdate frequency

TwinMind ships an update weekly, M91 every 9 days. The most recent releases landed on September 23, 2026 and September 19, 2026 respectively.

Scorecard2 real differences · 8 level
TwinMind versus M91: the parameters behind the verdict, then further details
ParameterTwinMindM91
PriceFreeFree
Rating4.8 (862 ratings) — better—
Positive reviews79.5% of reviews—
Number of ratings862 — better—
Update frequencyWeekly — betterEvery 9 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS17.015.1 — better
Further details — not scored
Size131 MB30 MB
Age rating4+17+
DeveloperThirdEar AI IncWalkover Web Solutions Pvt. Ltd.

Bugs and requests

TwinMind

Requested features

1 request
  • Capture widget for quick access

M91

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

TwinMind

Subscriptions10
  • TwinMind PRO Dev (Monthly)3 Days trial$14.991 Month
  • TwinMind PRO (Monthly)$14.991 Month
  • Unlimited access$15.001 Month
Show 7 more
  • TwinMind MAX Dev (Monthly)7 Days trial$29.991 Month
  • TwinMind MAX (Monthly)7 Days trial$49.991 Month
  • Unlimited Access$119.991 Year
  • TwinMind PRO (Annual)$143.991 Year
  • TwinMind PRO Dev (Annual)7 Days trial$149.991 Year
  • TwinMind MAX Dev (Yearly)7 Days trial$289.001 Year
  • TwinMind MAX (Yearly)7 Days trial$359.991 Year
None

M91

No in-app purchases

Questions

Is TwinMind free?
TwinMind is free to download, with in-app purchases available.
Is M91 free?
M91 is free to download, with no in-app purchases.
Do TwinMind or M91 have ads?
Neither TwinMind nor M91 shows ads.
Which is updated more often, TwinMind or M91?
TwinMind ships an update weekly, and M91 every 9 days. Most recently, TwinMind was updated on September 23, 2026 and M91 on September 19, 2026.

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