Comparison

FlipStudy Index Cards vs Noteflow

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

Head to head
About

FlipStudy Index Cards

Create and study digital flashcards with a simple, gesture-based interface. Add notes, drawings, and images to your cards, then flip through them quickly for effective memorization. Organize your study topics and access them easily on the go.

Highlights
  • Gesture-based card flipping
  • Freehand drawing and typing
  • Image and photo uploads
  • Organize by topic with colors
  • Portrait and landscape support
  • Apple Pencil compatible
Features
Read full description

Big exam tomorrow? Presentation on Monday? Quickly jot down all your notes on Flashcards then flip through them with your fingers on your way to the exam room. Have a friend flip through your cards before your elevator pitch. The Fastest, Cleanest, Simplest, pure gesture based Flashcard app. * Swipe left and right to flip through cards * Draw freely with your finger (or Apple Pencil) * Press and hold to Flip card over * Shake to see a random card * Swipe down to cancel * Swipe up to delete Features * Quickly add new flashcards on the fly with one tap * Freehand draw with your finger or type with your keyboard * Easily erase parts of your drawing with your finger * Swipe though multiple flashcards, press and hold to flip each card over * Supports both front and back side of flashcards * Store and organize multiple flashcard topics with different colors * Take photos, upload images * Use in both portrait and landscape * Apple Pencil Compatible

About

Noteflow

This app offers a digital notebook experience designed to replace pen and paper. It allows for note-taking, PDF annotation, sketching, and freeform idea capture with vector ink that scales without quality loss. Seamlessly integrate real-world content and organize your thoughts digitally.

Highlights
  • Digital notebook replacement for pen and paper
  • Annotate PDFs and sketch freely
  • Convert real-world images to vector ink
  • Fluid editing without traditional layers
  • Drag-and-drop integration with iOS
  • Cloud storage synchronization
Features
Read full description

Noteflow is designed to replace pen and paper. It is a modern digital notebook that lets you get the most from your iPad and iPhone. Use it for taking notes, annotating PDFs, sketching and doodling, plus a whole lot more: Copy and paste from the real world: Use Inkport gen 2 to snap a picture of a whiteboard or writing and convert it into Noteflow's native vector ink. No special paper needed. Then resize, re-color, or edit as if you wrote it in Noteflow. Create layered drawings without layers: Use the highlighter tool to color and shade behind existing ink. Use Color-Select to separate and edit individual colors. It's a much more fluid and natural editing experience than with layers. Use the straight-line tool with a grid for fast and intuitive wireframes and drafting. Drag-and-drop, cloud-storage, and more: Noteflow natively integrates with iOS's file system and drag-and-drop capabilities. Drop photos and text into Noteflow, and drag your drawings into other apps. Store your files locally or sync with the cloud service of your choice. Make Noteflow a seamless part of your workflow, the way you like. SPACE FOR YOUR IDEAS TO ROAM Our vision for Noteflow is simple: to be digital pen and paper. The magic of pen and paper is in their versatility. They are useful for so many things, but particularly for the freeform capture of ideas. Noteflow expands upon this quality. You can naturally do all the things you normally do with pen and paper: take notes in meetings or class, and jot down flashes of inspirations on the go. And you can take that to a whole new level: One of Noteflow’s best uses is for "thinking on digital paper": quickly capture key ideas and concepts, then move and organize them on the screen. Noteflow's vector ink engine lets you scale and edit your work without any loss of quality. Your words and drawings remain tack sharp when zoomed in, giving you a huge effective working canvas even on a single page. There are analogues in the physical world, such as sketchnotes or everyday working on a white board, but being able to fluidly edit and move your ideas around the page is something you can only do digitally. When you represent the ideas in your head with your own personal scribbles on the screen, it effectively becomes an extension of your mind - giving you more room to think. We've designed every part of Noteflow to let you intuitively capture and work on your ideas the way you like. Whether it's dropping in existing information, quickly sketching concepts, or assembling polished presentations for others. EVALUATE NOTEFLOW RISK FREE Rather than just read about Noteflow, go ahead and try it out: We've decided to make the Basic Edition completely FREE. The Basic Edition is a full featured note-taking and sketching app. It comes with the Fountain Pen with black ink, photos, and a standard set of 5 popular fonts for text. Books max out at 20 pages each, but you can create as many as you like. NOTEFLOW+ Upgrade instantly at any time to get: + Inkport + Import and annotate PDFs + A customizable, full color palette, + The Marker, Write-Behind Highlighter and Straight Line tools. + Rotate, Cut, Copy, Paste Ink, and Page Management, + Notebooks with unlimited pages, + Page backgrounds and sizes, + An additional 50+ fonts, + And more! Learn more in the in-app Quickstart Guide. DIGITAL TOOLS FOR A DIGITAL AGE I hope you'll find Noteflow a useful part of your workflow, and that you'll discover new ways to do things with it that weren't easy before. We're very proud of the work we've put into Noteflow, but we're also just seen the beginning of what's possible with powerful new digital platforms like the iPad. Our goal is to push these platforms to their limits to craft useful tools. Tools that can help us think a little more clearly, communicate a bit more effectively, and connect with other in new and enriching ways. Thanks for joining us on this journey! -- The App Makers @ Qrayon.

Screenshots

FlipStudy Index Cards4 screens
Noteflow4 screens

Verdict

The call

The clearest difference is rating: Noteflow at 4.2 against FlipStudy Index Cards's 3.3. Noteflow also leads on in-app purchases (none vs 2) and ratings volume (182 vs 43). FlipStudy Index Cards's advantage is update cadence (every 3 weeks vs every 6 weeks) and iOS requirement (10.0 vs 12.4). On price, review sentiment, 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. FlipStudy Index Cards sells 2 one-off in-app purchases. Noteflow asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Noteflow holds the better App Store score, 4.2 against 3.3. Both are backed by a comparable volume of ratings — 43 and 182 respectively. Written reviews complicate that: 52% of FlipStudy Index Cards's written reviews are positive against 47% of Noteflow's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

FlipStudy Index Cards ships an update every 3 weeks, Noteflow every 6 weeks. The most recent releases landed on August 10, 2026 and September 21, 2026 respectively.

Scorecard6 real differences · 4 level
FlipStudy Index Cards versus Noteflow: the parameters behind the verdict, then further details
ParameterFlipStudy Index CardsNoteflow
PriceFreeFree
Rating3.3 (43 ratings)4.2 (182 ratings) — better
Positive reviews52.3% of reviews — better46.7% of reviews
Number of ratings43182 — better
Update frequencyEvery 3 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better12.4
Further details — not scored
Size35 MB14 MB
Age rating4+4+
DeveloperA2DWebsQrayon, LLC

Customer experience

FlipStudy Index Cards

All ratings43 ratings
Positive53.5%
Neutral7.0%
Negative39.5%
Written reviews65 reviews
Positive52.3%
Neutral15.4%
Negative32.3%

Noteflow

All ratings182 ratings
Positive78.0%
Neutral7.1%
Negative14.8%
Written reviews30 reviews
Positive46.7%
Neutral10.0%
Negative43.3%

In-app purchases

2 purchases

FlipStudy Index Cards

One-time2
  • Get Ad Free Upgrade$0.99
  • Get All The Things$3.99
None

Noteflow

No in-app purchases

Questions

Is FlipStudy Index Cards free?
FlipStudy Index Cards is free to download, with in-app purchases available.
Is Noteflow free?
Noteflow is free to download, with no in-app purchases.
Which has better reviews, FlipStudy Index Cards or Noteflow?
Noteflow is rated higher. FlipStudy Index Cards averages 3.3 out of 5 from 43 ratings, while Noteflow averages 4.2 from 182 ratings.
Do FlipStudy Index Cards or Noteflow have ads?
Neither FlipStudy Index Cards nor Noteflow shows ads.
Which is updated more often, FlipStudy Index Cards or Noteflow?
FlipStudy Index Cards ships an update every 3 weeks, and Noteflow every 6 weeks. Most recently, FlipStudy Index Cards was updated on August 10, 2026 and Noteflow on September 21, 2026.

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