Comparison

AI Grammar Keyboard vs brainmate by Brain M8

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

Head to head
About

AI Grammar Keyboard

This AI-powered keyboard offers on-device grammar correction, sentence refinement, smart replies, and translation. It prioritizes user privacy by processing all data locally, eliminating the need for cloud-based services or app switching.

Highlights
  • On-device AI processing
  • Grammar correction
  • Sentence refinement
  • Smart reply generation
  • Offline translation
  • Privacy-focused
Features
Read full description

Type Buddy is your personal AI keyboard designed for speed, privacy, and intelligence - built to work directly on your device using Apple Foundation Models. Unlike cloud-based keyboards, Type Buddy AI runs on-device, keeping your data private and secure. Your messages stay on your iPhone, ensuring a fully privacy-focused writing experience. Fix grammar instantly, refine sentences, generate smart replies, and translate messages - even offline. No app switching. No copying and pasting. Everything works seamlessly from your keyboard inside WhatsApp, Gmail, Instagram, iMessage, and more. Powered by Apple’s advanced on-device AI, Type Buddy delivers fast performance, intelligent suggestions, and a smooth typing experience while protecting your personal conversations.

About

brainmate by Brain M8

This AI-powered productivity tool acts as your second brain, remembering key details about people, companies, and projects. It helps you stay organized with smart reminders and a daily pulse check, all while keeping your data secure and accessible.

Highlights
  • AI-powered note-taking and organization
  • Daily pulse for attention management
  • Plain markdown notes with interlinking
  • Follow-through reminders
  • Secure data storage and export
Features
Read full description

Your AI second brain for business. brainmate remembers the people, companies, and projects you tell it about — and asks about the things you haven't mentioned lately. Talk to it like a colleague. It files what matters into an organized workspace of notes you can browse, search, and export anytime. No prompt engineering, no setup, no learning curve. WHAT IT DOES - Chat that captures: mention a person, a deal, a deadline — brainmate writes it down in the right place and confirms what it saved. - Daily Pulse: a short check-in that surfaces what needs attention — stale relationships, open loops, questions worth answering. - A real workspace: every note is plain markdown with links between people, companies, and projects. Browse it, search it, export the whole thing whenever you want. - Reminders that follow through: ask for a nudge and it shows up — completing it updates your notes too. BUILT FOR BUSINESS OWNERS No dashboards to configure. No fields to fill in. You talk; it organizes. It's the assistant that actually remembers last month. YOUR DATA, YOURS Notes are stored securely and belong to you. AI features run only with your consent and can be turned off in Settings. Export everything, anytime. brainmate Solo is $29.99/month after a 2-week free trial. Cancel anytime. Already subscribed on the web? Sign in — no second purchase needed. Terms of Service: https://brainm8.ai/terms Privacy Policy: https://brainm8.ai/privacy

Screenshots

AI Grammar Keyboard4 screens
brainmate by Brain M84 screens

Verdict

The call

The clearest difference is in-app purchases: brainmate by Brain M8 at none against AI Grammar Keyboard's 1. brainmate by Brain M8 also leads on ads (none vs shown) and iOS requirement (18.0 vs 26.0). On price, review sentiment, update cadence 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. AI Grammar Keyboard sells 1 one-off in-app purchase. brainmate by Brain M8 asks for nothing beyond the download.

UpkeepUpdate frequency

AI Grammar Keyboard ships an update every 6 days, brainmate by Brain M8 every 8 days. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
AI Grammar Keyboard versus brainmate by Brain M8: the parameters behind the verdict, then further details
ParameterAI Grammar Keyboardbrainmate by Brain M8
PriceFreeFree
Rating—5.0 (6 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings—6 — better
Update frequencyEvery 6 days — betterEvery 8 days
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhoneiPhone
Requires iOS26.018.0 — better
Further details — not scored
Size12 MB6 MB
Age rating4+4+
DeveloperDigital Hole Pvt. Ltd.Brain M8 LLC

Customer experience

AI Grammar Keyboard

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

brainmate by Brain M8

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

AI Grammar Keyboard

One-time1
  • Premium Lifetime$4.99
None

brainmate by Brain M8

No in-app purchases

Questions

Is AI Grammar Keyboard free?
AI Grammar Keyboard is free to download, with in-app purchases available.
Is brainmate by Brain M8 free?
brainmate by Brain M8 is free to download, with no in-app purchases.
Do AI Grammar Keyboard or brainmate by Brain M8 have ads?
AI Grammar Keyboard shows ads; brainmate by Brain M8 does not.
Which is updated more often, AI Grammar Keyboard or brainmate by Brain M8?
AI Grammar Keyboard ships an update every 6 days, and brainmate by Brain M8 every 8 days. Most recently, AI Grammar Keyboard was updated on November 9, 2026 and brainmate by Brain M8 on October 31, 2026.

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