Comparison

brainmate by Brain M8 vs CogniLog

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

Head to head
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

About

CogniLog

This app helps you document your work, capturing decisions and reasoning. It allows an AI assistant to read your log and answer questions about your past activities. Entries are plain text with Markdown support, and a visual almanac helps you navigate your history.

Highlights
  • AI-powered work log analysis
  • Plain text entries with Markdown
  • Visual almanac for historical navigation
  • Project-based channels and #tags
  • Cross-device sync via iCloud
  • Import from other note-taking apps
Features
Read full description

CogniLog is a work log for anything worth remembering. It captures the story behind your work: the decisions, the dead ends, and the reasoning you would otherwise forget. Whether your days are made of code, meetings, deliverables, chapters, or experiments, you write it down once and get it back whenever you need it. The work log your AI can read. CogniLog's macOS version comes with a built-in connection (an MCP server) that lets an AI assistant you already use, like Claude, read your log and answer questions about your own work, even entries authored in the iOS version. Ask what you were doing last week, or why you made a call three months ago. Your assistant can even add entries of its own, so the two of you share one space that you both write to and read from. Write the way you already write. Entries are plain text with light Markdown, and they format as you type. Headings become headings, code becomes code. Drop in a #tag and CogniLog files it for you, and channels keep each project or context separate. No forms, no fields, just the log. See the year, drill to the moment. Capture is only half the job. The Almanac turns your log into a map. Scan whole months at a glance, hover any day for a summary of what happened, and drill from the year down to a single entry. Come back from a busy week, or a week away, and pick the thread back up. Built native, and it feels it. A real Mac app and a real iPhone app, not a website in a wrapper. Log from your Mac while you work, or catch a thought on your phone while you wait in line. Capture meets you where you are, from the menu bar to the lock screen widget, with optional daily and streak reminders. Yours, and only yours. No new accounts and no servers of ours. Your log stays on your devices and syncs through your own iCloud when you want it everywhere. Using the macOS version bring your history in from apps like Apple Notes, Day One, Obsidian, and Bear, or any Markdown files, viewing it on your iOS device; and take it all back out as plain Markdown any time. No lock-in, no ads, no tracking. Currently free. Everything in the app is free right now. If that ever changes, it won't change for the people already here. CogniLog is made by Rivet and Rune, a small studio building native tools and experiences.

Screenshots

brainmate by Brain M84 screens
CogniLog4 screens

Verdict

The call

The clearest difference is monetization model: CogniLog at free against brainmate by Brain M8's subscription. brainmate by Brain M8's advantage is iOS requirement (18.0 vs 26.2). On price, rating, review sentiment and ratings volume 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for brainmate by Brain M8 against 5.0 for CogniLog. Both are backed by a comparable volume of ratings — 6 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

brainmate by Brain M8 ships an update every 8 days, CogniLog every 6 days. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.

Scorecard2 real differences · 8 level
brainmate by Brain M8 versus CogniLog: the parameters behind the verdict, then further details
Parameterbrainmate by Brain M8CogniLog
PriceFreeFree
Rating5.0 (6 ratings)5.0 (3 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings6 — better3
Update frequencyEvery 8 daysEvery 6 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationSubscriptionFree — better
DevicesiPhoneiPhone, Mac — better
Requires iOS18.0 — better26.2
Further details — not scored
Size6 MB51 MB
Age rating4+4+
DeveloperBrain M8 LLCRivet Rune LLC

Customer experience

brainmate by Brain M8

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

CogniLog

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

In-app purchases

None

brainmate by Brain M8

No in-app purchases

None

CogniLog

No in-app purchases

Questions

Is brainmate by Brain M8 free?
brainmate by Brain M8 is free to download, with no in-app purchases.
Is CogniLog free?
CogniLog is free to download, with no in-app purchases.
Which has better reviews, brainmate by Brain M8 or CogniLog?
brainmate by Brain M8 and CogniLog are both rated 5.0 out of 5 on the App Store, from 6 and 3 ratings respectively.
Do brainmate by Brain M8 or CogniLog have ads?
Neither brainmate by Brain M8 nor CogniLog shows ads.
Which is updated more often, brainmate by Brain M8 or CogniLog?
brainmate by Brain M8 ships an update every 8 days, and CogniLog every 6 days. Most recently, brainmate by Brain M8 was updated on October 24, 2026 and CogniLog on October 11, 2026.

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