Comparison

NoteDex Index Cards & Projects vs Echo

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

Head to head
About

NoteDex Index Cards & Projects

This app offers a unique index card and flashcard experience with handwriting support across iOS, Mac, and Web. Organize ideas, notes, and projects visually, with options to share and collaborate on the web. It's designed for visual thinkers, students, and professionals seeking an organized way to capture and manage information.

Highlights
  • Handwriting support with Apple Pencil
  • Index card and flashcard organization
  • Cross-platform sync (iOS, Mac, Web)
  • Rich text formatting and image insertion
  • Study mode with spaced repetition
  • Web sharing and collaboration
  • Project and note organization with folders and tags
Read full description

The only index card, flash card and note taking app with handwriting support that works on iOS, Mac, and Web! Free to use during 7-day trial. After the trial you can still view your cards but can't add any more. One-Time Purchase. Also use on Web! SPECIAL ONE-TIME PAYMENT LIFETIME ACCESS PRICING OPTION - NO SUBSCRIPTION *** PRICING DISCOUNT DURING 7 DAY TRIAL *** NoteDex is a next generation note taking, index card and flashcard app with handwriting, text, images, tables, and cloud sync. Apple Pencil stylus support. Capture notes and ideas on the go, organize projects, and share on the web. With NoteDex all your information is in one place, secure and easy to organize and find. NoteDex fills the need for visual thinkers, note takers, project managers, writers and students like you, using the proven concept of Index Cards. Share AND EDIT note cards with anyone using a web browser! Unlike other apps, NoteDex is truly cross platform. NOTEDEX FEATURES - Rich text formatting, card colors, pictures and digital ink with Apple Pencil - Powerful note taking app on all stylus devices where the size of the screen will allow you to sketch on a card - just like a real card. Full Keyboard Support also. - STUDY MODE for Students to keep score when using NoteDex as flashcards - uses Leitner spaced repetition learning model - Advanced group folders, tags and search capabilities keeping you organized and productive CAPTURE IDEAS, THOUGHTS AND NOTES - Type and draw ideas on index cards. Add pictures and annotate - Organize into stacks. - Share stacks of idea cards with colleagues or friends on the web - Capture daily meeting and project notes, checklists, and to-do lists - Create notes when studying - Outline books and screenplays and organize with groups and tags - Create recipes and share with family - Create class lesson notes and share with colleagues FIND AND STAY ORGANIZED - Create separate stacks to organize your different projects, ideas, lessons, meetings, books, screenplays and more -Organize cards into Group sub-folders, categorize cards by Tags. Archive stacks for later retrieval - Search cards for specific text - Customize your project stacks with custom images - See visual ‘thumbnail’ previews of cards to help see and find your notes CLOUD SYNC AND COLLABORATE ON WEB - Sync your cards and stacks automatically across any phone or tablet using our enterprise grade secure cloud-sync – all changes you make are automatically saved and synced to the cloud and your devices - Share a card quickly as a picture via email - Share your stacks via the web to people on any device - Collaborate on web stacks with full edit capability - Set password and expiration dates on web stacks - Start a stack on one device and continue on another NOTEDEX FOR PROFESSIONALS - Capture meeting notes and collaborate with your team - Create projects and plans, organize with folders and category tags - Create web stacks to share knowledge and training NOTEDEX FOR ADVANCED STUDENTS - Take detailed lecture notes with text, images and ink - Create advanced flashcards for study and keep score with Study Mode - Share your notes with other classmates on web NOTEDEX FOR WRITERS - Capture ideas and keep your thoughts organized - Develop outlines of stories, novels, books - Collaborate with colleagues on web! NOTEDEX FOR INDIVIDUALS - Capture ideas and notes - Share recipes and more with family using web - Capture your goals and thoughts as a journal and planner --- Use on all your devices - no need to buy app for different devices and platforms. --- NOTEDEX: BEYOND INDEX CARDS (TM) End User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Echo

This app records meetings and lectures, transcribing them into text. It then provides summaries, identifies decisions, and extracts to-dos. You can ask questions about the conversation and organize notes by project or class.

Highlights
  • AI-powered transcription
  • Meeting summarization
  • To-do list extraction
  • Ask questions about conversations
  • Supports Arabic and English
  • Organize notes by template
  • Export notes as PDF/Word
Features
Read full description

Talk in Arabic, English, or both. Echo hands back what matters. Echo listens to your meetings, calls and lectures, remembers every word, and gives you the summary, the decisions and the to-dos. So you can stay in the conversation, not in your notes. HOW IT WORKS 1. Tap to start at the top of a meeting, a lecture or a quick thought. 2. Put your phone down and join the conversation. 3. When you stop, Echo hands back a short summary of what was said and decided, to-dos pulled from the conversation, and the full transcript with timestamps, so you can jump to any moment. BUILT FOR ARABIC AND ENGLISH Speak Arabic, English, or both in the same sentence. Echo understands Gulf, Levantine, Egyptian and Maghrebi dialects as well as Modern Standard Arabic, and the whole app works in Arabic and English. ASK ECHO Ask anything about a conversation, like "What did we decide about pricing?", and get answers drawn from what was actually said. FOR YOUR WORK AND YOUR STUDIES Client meetings, team check-ins, interviews, lectures, study groups. Choose a template (meeting minutes, client meeting, lecture notes, interview and more) and keep clients, classes and projects apart in folders. SHAPED AROUND YOUR DAY • Watch the transcript appear live while Echo listens • Live Activity on your Lock Screen • Meeting reminders from your calendar, a minute before each one starts • A dictation keyboard for getting words down fast • Import audio files you already have • Attach photos to a note • Export and share notes as PDF or Word YOU STAY IN CONTROL Echo informs. You decide. It never sends, books or replies on your behalf. ECHO PRO Echo is free to try, with a monthly allowance of minutes. Echo Pro gives you unlimited minutes, unlimited Ask Echo questions and faster processing. • Echo Pro is available as a weekly or yearly auto-renewing subscription. The yearly plan includes a free trial. • You'll see the price and any trial length on Apple's confirmation screen before you pay. • Payment is charged to your Apple ID when you confirm the purchase, or when the free trial ends. • The subscription renews automatically unless you cancel at least 24 hours before the end of the current period. • Manage or cancel anytime in your Apple ID settings. Privacy Policy: https://www.meetwithecho.ai/privacy Terms of Use: https://www.meetwithecho.ai/terms

Screenshots

NoteDex Index Cards & Projects4 screens
Echo4 screens

Verdict

The call

The clearest difference is review sentiment: Echo at 100% against NoteDex Index Cards & Projects's 32%. Echo also leads on rating (5.0 vs 2.3) and update cadence (every 2 days vs every 3 weeks). NoteDex Index Cards & Projects's advantage is ads (none vs shown) and ratings volume (26 vs 1). On price, in-app purchases, device support and iOS requirement 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. NoteDex Index Cards & Projects sells 6 in-app purchases, starting at $2.99 per month and Echo sells 6 in-app purchases, starting at $2.69 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Echo holds the better App Store score, 5.0 against 2.3. That said, the two scores are not equally well evidenced: NoteDex Index Cards & Projects has 26 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 32% of NoteDex Index Cards & Projects's written reviews are positive against 100% of Echo's.

UpkeepUpdate frequency

NoteDex Index Cards & Projects ships an update every 3 weeks, Echo every 2 days. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

Scorecard6 real differences · 4 level
NoteDex Index Cards & Projects versus Echo: the parameters behind the verdict, then further details
ParameterNoteDex Index Cards & ProjectsEcho
PriceFreeFree
Rating2.3 (26 ratings)5.0 (1 ratings) — better
Positive reviews32.4% of reviews100.0% of reviews — better
Number of ratings26 — better1
Update frequencyEvery 3 weeksEvery 2 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, Mac — betteriPhone, iPod
Requires iOS16.015.1 — better
Further details — not scored
Size3 MB79 MB
Age rating4+4+
DeveloperSundaram Applied TechnologiesCNTXT - FZCO

Customer experience

NoteDex Index Cards & Projects

All ratings21 ratings
Positive23.8%
Neutral4.8%
Negative71.4%
Written reviews37 reviews
Positive32.4%
Neutral8.1%
Negative59.5%

Echo

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

6 purchases

NoteDex Index Cards & Projects

Subscriptions4
  • MONTHLY SUBSCRIPTION$2.991 Month
  • MONTHLY SUBSCRIPTION$5.991 Month
  • YEARLY SUBSCRIPTION$24.991 Year
Show 1 more
  • YEARLY SUBSCRIPTION$49.991 Year
One-time2
  • LIFETIME ACCESS - ONE PAYMENT$49.99
  • LIFETIME ACCESS - ONE PAYMENT$99.99
6 purchases

Echo

Subscriptions6
  • Echo Pro Weekly$2.697 Days
  • Echo Pro Weekly$2.997 Days
  • Echo Pro Monthly$7.191 Month
Show 3 more
  • Echo Pro Monthly$7.991 Month
  • Echo Pro Yearly3 Days trial$35.991 Year
  • Echo Pro Yearly3 Days trial$39.991 Year

Questions

Is NoteDex Index Cards & Projects free?
NoteDex Index Cards & Projects is free to download, with in-app purchases available.
Is Echo free?
Echo is free to download, with in-app purchases available.
Which has better reviews, NoteDex Index Cards & Projects or Echo?
Echo is rated higher. NoteDex Index Cards & Projects averages 2.3 out of 5 from 26 ratings, while Echo averages 5.0 from 1 ratings.
Do NoteDex Index Cards & Projects or Echo have ads?
Echo shows ads; NoteDex Index Cards & Projects does not.
Which is updated more often, NoteDex Index Cards & Projects or Echo?
NoteDex Index Cards & Projects ships an update every 3 weeks, and Echo every 2 days. Most recently, NoteDex Index Cards & Projects was updated on November 3, 2026 and Echo on November 6, 2026.

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