Comparison

CellAtlas vs Sketchy Learning

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

Head to head
About

CellAtlas

Explore blood cell morphology with expert-written lectures and a vast image database. Test your knowledge with an engaging quiz game designed for efficient learning.

Highlights
  • Blood cell morphology guide
  • Expert-written mini lectures
  • Extensive cell image database
  • CellQuiz game
  • Knowledge testing
Features
Read full description

Welcome to the CellAtlas Application - your guide to blood cell morphology. CellAtlas contains mini lectures written by hematology experts complemented by an extensive cell image database. The App also includes a game, CellQuiz. A fun and efficient way to test your knowledge in cell morphology. CellAtlas is a product from the medical technology company CellaVision.

About

Sketchy Learning

This app transforms complex medical subjects into memorable visual lessons and interactive patient scenarios. It's designed to help students learn faster, master exams, and build clinical confidence. Engage with high-yield content and practice real-world reasoning.

Highlights
  • Visual lessons for memorization
  • Interactive patient case simulations
  • High-yield exam content
  • Quizzes and custom tests
  • Customizable playlists
  • Mobile-friendly learning
Features
Read full description

Sketchy turns tough medical content into unforgettable visual lessons and interactive patient cases, so you learn faster, ace exams, and feel ready in the clinic. Built for how medical, PA, NP, and premed students actually learn, Sketchy helps you make sense of high-yield topics fast and recall them when it counts. Watch engaging visual lessons that lock in tough topics like pharm, micro, path, and more. Apply what you’ve learned to a clinical scenario with interactive patient cases that build real clinical reasoning skills. Whether you are squeezing in a quick review between classes or deep in exam and board prep, Sketchy goes where you go and helps concepts stick for the long haul. What you’ll love about Sketchy: * Unforgettable visual lessons that make hard concepts easy to remember * Interactive symbol explorer for quick visual lesson review * Interactive patient case sims to practice thinking like a clinician * High-yield content for exams, boards, and clinical rotations * Quizzes and custom tests that reinforce memory and reveal weak spots * Customizable playlists to organize lessons and cases your way * Mobile-friendly learning for quick reviews or deep dives Loved by over half a million students and created by expert clinicians, Sketchy helps learners feel more confident in class, on rotations, and on exam day. Terms: https://www.sketchy.com/terms Privacy: https://www.sketchy.com/privacy

Screenshots

CellAtlas3 screens
Sketchy Learning3 screens

Verdict

The call

The clearest difference is rating: Sketchy Learning at 5.0 against CellAtlas's 3.2. Sketchy Learning also leads on update cadence (every 3 weeks vs every 2 months). CellAtlas's advantage is in-app purchases (none vs 4) and ads (none vs shown). On price, ratings volume, 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. Sketchy Learning sells 4 in-app purchases, starting at $289.99 per year. CellAtlas asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Sketchy Learning holds the better App Store score, 5.0 against 3.2. Both are backed by a comparable volume of ratings — 22 and 32 respectively. Written reviews complicate that: 84% of CellAtlas's written reviews are positive against 53% of Sketchy Learning's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

CellAtlas ships an update every 2 months, Sketchy Learning every 3 weeks. The most recent releases landed on October 15, 2026 and October 18, 2026 respectively.

Scorecard6 real differences · 4 level
CellAtlas versus Sketchy Learning: the parameters behind the verdict, then further details
ParameterCellAtlasSketchy Learning
PriceFreeFree
Rating3.2 (22 ratings)5.0 (32 ratings) — better
Positive reviews84.3% of reviews — better52.8% of reviews
Number of ratings2232 — better
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size106 MB68 MB
Age rating4+12+
DeveloperCellaVisionSketchy Group, LLC

Customer experience

CellAtlas

All ratings22 ratings
Positive45.5%
Neutral22.7%
Negative31.8%
Written reviews121 reviews
Positive84.3%
Neutral5.0%
Negative10.7%

Sketchy Learning

All ratings54 ratings
Positive66.7%
Neutral11.1%
Negative22.2%
Written reviews36 reviews
Positive52.8%
Neutral13.9%
Negative33.3%

User reviews

CellAtlas

From 22 App Store ratings

What we love

  • 👍 Great for learning morphology
  • 👍 Helpful study tool
  • 👍 Fun quiz format
  • 👍 Easy to navigate
  • 👍 Good for review

Room to improve

  • ⏰ Ridiculous timer
  • ⏰ Too little time
  • ⏰ Timer causes mistakes
  • ⏰ Timer prevents practice
  • 🐛 Quiz is broken/rigged

Sketchy Learning

From 32 App Store ratings

What we love

  • 👍 Great for visual learners
  • 👍 Makes learning fun and memorable
  • 👍 High-yield material relevant to exams
  • 👍 Excellent for retaining information
  • 👍 Valuable for medical students

Room to improve

  • 🐛 Videos stop in landscape orientation
  • 🐛 Can't give feedback on mobile app
  • 🐛 Closed captioning settings don't save
  • 🐛 Zoom/pan not available in landscape mode
  • 🐛 App crashes frequently

Bugs and requests

CellAtlas

Reported bugs

6 issues
  • Timer is too short
  • Quiz moves too slowly after correct answer
  • Duplicate images that only one counts
  • App not opening on some devices
  • Missing WBCs
Show 1 more
  • Layout issues on older iPhones

Requested features

22 requests
  • Remove timer option
  • Untimed mode
  • More time for quizzes
  • Quizzes for specific cells/sections
  • More images/examples
Show 17 more
  • Larger database of cells
  • More examples of atypical/abnormal cells
  • Ability to practice specific cell types
  • Option to quiz on specific cell types
  • More options for tests (e.g., malignancies)
  • Ability to practice maturation stages
  • Zoomable slides
  • Labels for cell structures
  • Side-by-side cell comparison
  • Save quiz results
  • Add body fluid images
  • Add coag cascade
  • Add disease states/inclusions
  • Link to LIS system
  • More photos
  • Updates for more cell pictures
  • Support for older iPhone screens

Sketchy Learning

Reported bugs

14 issues
  • Video stops playing and closes in landscape orientation
  • Keyboard covers submit button when giving feedback on mobile app
  • Closed captioning settings do not save
  • App crashes when videos are full-screened and phone is turned sideways
  • App crashes frequently
Show 9 more
  • App becomes laggy and unusable after an update
  • Video controls (pause, rewind) do not work after update
  • Videos randomly stop playing without explanation
  • Videos always crash on iPhone X
  • Videos close by themselves on iOS
  • Can't watch videos horizontally
  • New layout makes symbols tiny and difficult to view
  • Can't scroll on the side panel to see other videos in a course subsection
  • Full screen symbol mode forces device orientation switch

Requested features

6 requests
  • Ability to create customized tests in the app
  • Save closed captioning settings
  • Improve zoom and pan functionality in landscape mode
  • Bring back bookmarking feature
  • Allow scrolling on the side panel within video courses
Show 1 more
  • Make video speed and caption settings persistent across videos

In-app purchases

None

CellAtlas

No in-app purchases

4 purchases

Sketchy Learning

Subscriptions4
  • Sketchy NP 12 month7 Days trial$289.991 Year
  • MCAT Science Review 12 month7 Days trial$399.991 Year
  • Sketchy PA 12 month7 Days trial$399.991 Year
Show 1 more
  • Medical 12 month7 Days trial$459.991 Year

Questions

Is CellAtlas free?
CellAtlas is free to download, with no in-app purchases.
Is Sketchy Learning free?
Sketchy Learning is free to download, with in-app purchases available.
Which has better reviews, CellAtlas or Sketchy Learning?
Sketchy Learning is rated higher. CellAtlas averages 3.2 out of 5 from 22 ratings, while Sketchy Learning averages 5.0 from 32 ratings.
Do CellAtlas or Sketchy Learning have ads?
Sketchy Learning shows ads; CellAtlas does not.
Which is updated more often, CellAtlas or Sketchy Learning?
CellAtlas ships an update every 2 months, and Sketchy Learning every 3 weeks. Most recently, CellAtlas was updated on October 15, 2026 and Sketchy Learning on October 18, 2026.

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