Comparison

Mem vs Heptabase

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

Head to head
About

Mem

This app acts as an AI-powered thought partner, capturing and organizing your ideas, meetings, and research. It allows you to use voice to create and edit notes, and an AI assistant can recall, summarize, and reorganize your information. It also surfaces relevant notes automatically and offers powerful search capabilities.

Highlights
  • Voice-to-text note creation and editing
  • AI-powered summarization and recall
  • Automatic organization and structuring of notes
  • Intelligent surfacing of related information
  • Deep search for any note
  • Cross-device synchronization
  • Offline access
Features
Read full description

Mem is your personal AI agent—a chief of staff that builds a living picture of your tasks, projects, and goals, then helps you follow through. Capture notes, meetings, ideas, research, and links without stopping to organize. Mem Agent uses that context to answer questions, recall details, plan, draft, summarize, and move work forward. YOUR WORKSPACE, KEPT FOR YOU Write it down, say it out loud, record a meeting, or save it from another app. Mem keeps everything connected, searchable, and ready when you need it. ASK ANYTIME. SKIP THE BRIEFING. Mem Agent knows the context you have saved, so you can ask what matters now instead of rebuilding the backstory. Recall a detail, summarize a week of meetings, connect related ideas, draft a message, or plan the next step. PROACTIVE WORK THAT SCALES Mem automatically detects and tracks tasks and projects from the notes you create or edit. With Mem Pro, add custom routines that prepare briefings, do research, organize notes, and send scheduled reminders. Connect tools like Gmail, Slack, and Todoist so Mem can use more of your work as context. VOICE NOTES THAT STAY USEFUL Record a thought, meeting, or reminder. Mem keeps the audio and transcript together and helps turn rough input into clear, structured notes. FIND ANYTHING YOU’VE SAVED Search by topic, person, project, or a vague memory. Mem helps retrieve information even when you do not remember the exact wording. CAPTURE FROM ANYWHERE Use Share to Mem to save text, links, webpages, files, and more from other apps. Capture quickly, then return to the work in front of you. AVAILABLE ACROSS YOUR DEVICES Use Mem on iPhone, Mac, Windows, and the web. Work offline on iPhone, then sync when you are connected again. PRIVATE BY DEFAULT Your notes start private. Share them only when you choose. Every plan includes Mem Agent; usage limits vary by plan. Custom routines and connections require Mem Pro or higher. Trial eligibility and pricing are shown in the app. Privacy Policy: https://get.mem.ai/pages/privacy Terms of Service: https://get.mem.ai/pages/terms-of-service

About

Heptabase

This visual note-taking application helps users learn complex subjects. The mobile version offers complete access to all your notes, journals, and whiteboards, allowing you to review your work on the go.

Highlights
  • Visual note-taking
  • Learn complex topics
  • Access cards and journals
  • Read whiteboards
  • Mobile access
Features
Read full description

Heptabase is a visual note-taking app that helps you learn complex topics. The mobile app provides full access to all your cards and journals, and allows you to read all your whiteboards.

Screenshots

Mem4 screens
Heptabase3 screens

Verdict

The call

The clearest difference is in-app purchases: Heptabase at none against Mem's 10. Heptabase also leads on review sentiment (70% vs 41%) and iOS requirement (15.5 vs 18.0). On price, rating, ratings volume and update cadence 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. Mem sells 10 in-app purchases, starting at $9.00 per month. Heptabase asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.4 for Mem against 4.3 for Heptabase. Both are backed by a comparable volume of ratings — 129 and 71 respectively. Written reviews are what separate them: 41% of Mem's written reviews are positive against 70% of Heptabase's.

UpkeepUpdate frequency

Mem ships an update every 3 days, Heptabase every 6 days. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
Mem versus Heptabase: the parameters behind the verdict, then further details
ParameterMemHeptabase
PriceFreeFree
Rating4.4 (129 ratings) — better4.3 (71 ratings)
Positive reviews41.1% of reviews70.0% of reviews — better
Number of ratings129 — better71
Update frequencyEvery 3 days — betterEvery 6 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.5 — better
Further details — not scored
Size99 MB240 MB
Age rating4+4+
DeveloperMem Labs, Inc.Hepta Platforms, Inc

Customer experience

Mem

All ratings126 ratings
Positive83.3%
Neutral5.6%
Negative11.1%
Written reviews129 reviews
Positive41.1%
Neutral9.3%
Negative49.6%

Heptabase

All ratings71 ratings
Positive81.7%
Neutral2.8%
Negative15.5%
Written reviews30 reviews
Positive70.0%
Neutral6.7%
Negative23.3%

Bugs and requests

Mem

Reported bugs

20 issues
  • Notes disappearing without trace or recovery option
  • Bottom navigation bar covering key buttons
  • Settings popup incorrectly prompts to download app already installed
  • Black bar covering AI tool input field on web version
  • Photos not saving or disappearing after one day
Show 15 more
  • List formatting becomes corrupted and uneditable
  • Sync failures between web and mobile versions
  • Tags not linking to existing tags, only creating duplicates
  • Recent search results not clickable
  • Starred mems not displaying
  • AI chat getting stuck and unable to respond
  • Payment charged multiple times without proper plan activation
  • Unable to cancel subscription (confirm button non-functional)
  • Login issues across different platforms and devices
  • App freezing when switching between apps
  • Categories functionality inconsistent and buggy
  • Pull-to-refresh gesture removed with no alternative
  • Search function returning irrelevant results or no results
  • Slow performance and lag on mobile devices
  • AI unable to reference or update notes properly

Requested features

19 requests
  • True hands-free voice activation with Siri shortcuts
  • Widget support for voice notes and Apple Watch
  • Node/mind map graph visualization of note connections
  • PDF and document export functionality
  • Full markdown support
Show 14 more
  • Folder/collection organization system
  • Web scraping and webpage chat integration
  • Multi-language support (Russian, French, etc.)
  • Voice recognition in multiple languages
  • Templates on mobile app
  • Tagging and categorization on mobile
  • API access for third-party integrations
  • Import from Obsidian, Notion, Evernote, Apple Notes
  • Light mode option
  • PDF import and annotation
  • Audio recording and playback
  • Better iPad/Stage Manager support
  • Email-based login option
  • Automatic task carry-over to next day

Heptabase

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Mem

Subscriptions10
  • Mem Plus$9.001 Month
  • Pro$12.001 Month
  • Mem Pro7 Days trial$29.001 Month
Show 7 more
  • Proactive7 Days trial$29.001 Month
  • Mem Pro 2x$49.001 Month
  • Proactive7 Days trial$59.001 Month
  • Mem Pro 5x$99.001 Month
  • Proactive7 Days trial$99.001 Month
  • Mem Pro 10x$149.001 Month
  • Mem Pro 20x$199.001 Month
None

Heptabase

No in-app purchases

Questions

Is Mem free?
Mem is free to download, with in-app purchases available.
Is Heptabase free?
Heptabase is free to download, with no in-app purchases.
Which has better reviews, Mem or Heptabase?
Mem is rated higher. Mem averages 4.4 out of 5 from 129 ratings, while Heptabase averages 4.3 from 71 ratings.
Do Mem or Heptabase have ads?
Neither Mem nor Heptabase shows ads.
Which is updated more often, Mem or Heptabase?
Mem ships an update every 3 days, and Heptabase every 6 days. Most recently, Mem was updated on October 20, 2026 and Heptabase on October 24, 2026.

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