Comparison

CellAtlas vs ReadPilot

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

ReadPilot

Features
Read full description

The slow part of an English textbook is rarely a single word. It is the page that takes half an hour to look up, and the chapter you have forgotten by the time you reach the next one. ReadPilot turns the English textbooks and paper PDFs you import into Chinese you can actually keep reading, one chapter at a time: paragraphs connect, figures stay where they were, and a technical term is translated the same way from the first chapter to the last. When you want to check a passage, tap it and the English original is right there. After importing, you see the whole book's chapter structure and start from the chapter you need. When you finish a chapter, Pro turns it into a quiz and flashcards, so review before an exam needs no separate notes. It works for any field that relies on English textbooks: medicine, law, engineering, economics, psychology and more. On first launch you can read a built-in sample chapter (psychology or anatomy) before importing your own file. Features: • The whole book's chapter structure; start from any chapter • A Chinese reading view; tap a paragraph to see the English original • Figures kept in place; tables shown as the original page image • A glossary that stays consistent across chapters • Highlight a paragraph with one tap • Pro: chapter quizzes, flashcards and text recognition for scanned books Plans are counted in pages. Only pages that translate successfully count toward your allowance, and pages you have already translated can be reread without limit: • Free: 40 pages a month • Standard: 400 pages a month • Pro: 1,200 pages a month Subscriptions are available monthly or yearly; the price shown at purchase is the price you pay. They renew automatically unless you cancel before the current period ends. You can manage or cancel in your Apple Account settings, and restore earlier purchases inside the app. Your PDF stays on your device. Only the page content that needs AI translation is sent for processing when you ask for it. AI translation can contain errors, so check important numbers and conclusions against the original. Translation requires an internet connection. Import only content you have the right to use. Terms of Use: https://api.readpilot.app/legal/terms.html Privacy Policy: https://api.readpilot.app/legal/privacy.html

Screenshots

CellAtlas3 screens
ReadPilot4 screens

Verdict

The call

The clearest difference is in-app purchases: CellAtlas at none against ReadPilot's 4. ReadPilot's advantage is update cadence (every 2 days vs every 2 months). On price, ads, 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. ReadPilot sells 4 in-app purchases, starting at $4.99 per month. CellAtlas asks for nothing beyond the download.

UpkeepUpdate frequency

CellAtlas ships an update every 2 months, ReadPilot every 2 days. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 8 level
CellAtlas versus ReadPilot: the parameters behind the verdict, then further details
ParameterCellAtlasReadPilot
PriceFreeFree
Rating3.2 (22 ratings) — better—
Positive reviews84.3% of reviews—
Number of ratings22 — better—
Update frequencyEvery 2 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS15.015.0
Further details — not scored
Size106 MB33 MB
Age rating4+4+
DeveloperCellaVisionJun Zhi Wang

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

ReadPilot

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

CellAtlas

No in-app purchases

4 purchases

ReadPilot

Subscriptions4
  • 標準版(月)$4.991 Month
  • 專業版(月)$9.991 Month
  • 標準版(年)$39.991 Year
Show 1 more
  • 專業版(年)7 Days trial$74.991 Year

Questions

Is CellAtlas free?
CellAtlas is free to download, with no in-app purchases.
Is ReadPilot free?
ReadPilot is free to download, with in-app purchases available.
Do CellAtlas or ReadPilot have ads?
Neither CellAtlas nor ReadPilot shows ads.
Which is updated more often, CellAtlas or ReadPilot?
CellAtlas ships an update every 2 months, and ReadPilot every 2 days. Most recently, CellAtlas was updated on November 1, 2026 and ReadPilot on November 6, 2026.

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