CellAtlas vs ReadPilot
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Blood cell morphology guide
- Expert-written mini lectures
- Extensive cell image database
- CellQuiz game
- Knowledge testing
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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.
ReadPilot
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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
Verdict
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
Both are free to download. ReadPilot sells 4 in-app purchases, starting at $4.99 per month. CellAtlas asks for nothing beyond the download.
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.
| Parameter | CellAtlas | ReadPilot |
|---|---|---|
| Price | Free | Free |
| Rating | 3.2 (22 ratings) — better | — |
| Positive reviews | 84.3% of reviews | — |
| Number of ratings | 22 — better | — |
| Update frequency | Every 2 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 106 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | CellaVision | Jun 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
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- 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
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- 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
CellAtlas
No in-app purchases
ReadPilot
- 標準版(月)$4.991 Month
- 專業版(月)$9.991 Month
- 標準版(年)$39.991 Year
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- 專業版(年)7 Days trial$74.991 Year
Questions
Is CellAtlas free?
Is ReadPilot free?
Do CellAtlas or ReadPilot have ads?
Which is updated more often, CellAtlas or ReadPilot?
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