Comparison

Mem vs Study Stack

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

Study Stack

Manage all your academic tasks, assignments, and exams in one organized place. Track daily courses, upcoming deadlines, and overdue work with clear visual indicators. Features a clean interface with light and dark mode support.

Highlights
  • Add courses with details
  • Track assignments and exams
  • View daily courses and upcoming deadlines
  • Mark assignments as complete
  • Sort lists by importance
  • Light and dark mode support
Read full description

Study Stack is a clean and intuitive course manager/ assignment notebook. It allows students to keep track of all assignments, exams, and course schedules in one place. Students can view the day's courses or check off upcoming assignments with ease. Features: • Add courses(includes name, icon, start time, end time, and days of the week) • Add assignments to courses(includes name and due date) • Add exams to courses(includes name and exam date) • Delete courses, assignments, exams, or clear everything to start a new term • View "Today's Courses" to see the days courses in sorted order • Indicators to show if a class is awaiting start, in progress, or concluded • View assignments that are due soon, check off assignments as needed • Overdue assignments show in red • All lists are sorted by importance of course or assignment • View upcoming exams • View all courses or view one course in detailed view • Various filtering options • Clean and responsive UI • Dynamic home screen header, changes based on time of day • Supports light and dark mode • In app banner system

Screenshots

Mem4 screens
Study Stack4 screens

Verdict

The call

The clearest difference is review sentiment: Study Stack at 100% against Mem's 41%. Study Stack also leads on rating (5.0 vs 4.4) and in-app purchases (none vs 4). Mem's advantage is ratings volume (126 vs 2) and update cadence (every 3 days vs fortnightly). On price, 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. Mem sells 4 in-app purchases, starting at $12.00 per month. Study Stack asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Study Stack holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Mem has 126 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 41% of Mem's written reviews are positive against 100% of Study Stack's.

UpkeepUpdate frequency

Mem ships an update every 3 days, Study Stack fortnightly. The most recent releases landed on September 28, 2026 and June 4, 2026 respectively.

Scorecard7 real differences · 3 level
Mem versus Study Stack: the parameters behind the verdict, then further details
ParameterMemStudy Stack
PriceFreeFree
Rating4.4 (126 ratings)5.0 (2 ratings) — better
Positive reviews41.1% of reviews100.0% of reviews — better
Number of ratings126 — better2
Update frequencyEvery 3 days — betterFortnightly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.014.0 — better
Further details — not scored
Size99 MB1 MB
Age rating4+4+
DeveloperMem Labs, Inc.Erik Mederos

Customer experience

Mem

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

Study Stack

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

Study Stack

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Mem

Subscriptions4
  • Pro$12.001 Month
  • Proactive7 Days trial$29.001 Month
  • Proactive7 Days trial$59.001 Month
Show 1 more
  • Proactive7 Days trial$99.001 Month
None

Study Stack

No in-app purchases

Questions

Is Mem free?
Mem is free to download, with in-app purchases available.
Is Study Stack free?
Study Stack is free to download, with no in-app purchases.
Which has better reviews, Mem or Study Stack?
Study Stack is rated higher. Mem averages 4.4 out of 5 from 126 ratings, while Study Stack averages 5.0 from 2 ratings.
Do Mem or Study Stack have ads?
Neither Mem nor Study Stack shows ads.
Which is updated more often, Mem or Study Stack?
Mem ships an update every 3 days, and Study Stack fortnightly. Most recently, Mem was updated on September 28, 2026 and Study Stack on June 4, 2026.

Other comparisons