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68
BU Score
Solid

Dorland’s Medical Dictionary

4.7 ✍️ Editor
✍️ BU Analytics Review

Dorland’s Medical Dictionary is an iOS app from MobiSystems, Inc. in the Education category, currently rated 4.7★ across 169 ratings. Initial signal reads as mixed reviews — supporters praise core features while critics cite stability/value gaps.

Our BU Score puts it at 68Solid (established niche player). For a Education app, that means established niche player.

Track changes month-over-month in the Performance section below — live snapshot history and revenue forecast included.

📊 Performance Tracking LIVE

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idle
0%
Rating
Reviews
Forecast Revenue / mo
Snapshots tracked
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since first record
Range:

💰 Forecast Revenue / mo

MODEL
Revenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 6 of 6 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
Paid app ($0.00)METRIC
+$2,800
Excellent rating (4.7★)METRIC
+$2,200
5 starREVIEW
+$1,800
Mature app (15y old)METRIC
+$1,500
highly recommendREVIEW
+$1,400
Early-stage install base (169 ratings)METRIC
+$400
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)

📈 Reviews Growth

LIVE
Cumulative review count from first BU snapshot. Each point = a tracked update.

⭐ Rating Trend

LIVE
Average rating evolution. Updates with each new review batch.

🗓️ Snapshot Timeline

HISTORY
Each bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →
💾 139 MB🔞 12+📱 iOS 9.0+🔖 v10.0.11🔄 updated 7y ago🌐 CA, EN📂 Education💰 Paid🚀 Launched 2010 (15y old)

📝 About this app

Areas include anatomy, physiology, diseases, drugs, tests and procedures and much more. You'll find audio pronunciations and other helpful hints on the majority of terms.

LATEST APP UPDАТES:
 • Learn in style with any of the four colorful new themes – The colorful layout will turn your learning experience into an enjoyable routine. Customize your dictionary and benefit from the cheerful mood your favorite color brings you.
 • Dive right into the intricacies of the language - With new and convenient Home page, sleeker and more intuitive visual layout, as well as innovations in the speed of searches, you can get to the desired entry faster than ever.

SEARCH TOOLS - quickly find words with the clear, functional, and easy-to-use interface.
Designed to provide the most comprehensive search experience, the dictionary combines several search tools to match or predict what are you looking for, including:
 • Search autocomplete helps you find words quickly by displaying predictions as you type.
 • Keyword lookup allows you to search within compound words and phrases.
 • Camera search looks up words in the camera viewfinder and displays results in seconds.
 • Voice search helps you find an entry when you don’t know how a word is spelled.

Looking for a specific word but don't know how it's spelled? We've got you covered with our automatic ‘Fuzzy filter’ to correct word spelling, as well as ‘Wild card’ ('*' or '?') to replace a letter or entire parts of a word.

LEARNING TOOLS - engaging features that help you further enhance your vocabulary. Designed to give you freedom to structure your studies, the dictionary combines several learning tools to help you be more organized, including:
 • ‘Favorites’ that allow you to create custom folders with lists of words.
 • Recent list which helps you to easily review looked-up words.
 • Swipe-to-delete functionality in the Recent and Favorites menus.
 • Word-of-the-day option to teach you a new word every day.

Feel excited by the new word or definition you just learned? Share your discovery with friends on social media, email or any other option available on your device.

🆕 What's New · v10.0.11

This update from Apple will improve the functionality of this app. No new features are included.

• Four new colorful themes.
• Delete and sort entries with Favorites/Recent list.
• General bug fixes and improvements.

Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name
Dorland’s Medical Dictionary
Developer
MobiSystems, Inc.
Bundle ID
com.mobisystems.ElSevierDorlandsMedical
App Store URL
Open in App Store
Category
Education
Content rating
12+
Languages
CA, EN

Company

Website
www.mobisystems.com
Tagline
Not found
Description
Not found
Founded
Not found
HQ / Address
Not found
Employees
Not found
Logo
Not found

Revenue

Verified revenue / mo
Not found
AI revenue estimate / mo
Not found
AI annual estimate
Not found
ML model estimate / mo
$18.6K/mo
Top-grossing rank
Outside top 100 in US Education
All-time revenue
Not found
Pricing
Not found

Founder

Name
Not found
X / Twitter
Not found
LinkedIn
Not found
GitHub
Not found
X followers
Not found
Public statements
Not found

Funding

Total raised
Not found
Last round
Not found
Investors
Not found
Crunchbase
Not found
AngelList
Not found

Press & Links

Articles found
Not found
Listed on
Not found
Blog
Not found
Press / News
Not found

Contacts & Socials

Socials
Not found
Email
Not found
Phone
Not found
Contact page
Not found
About page
Not found
Recent App Store Reviews43 latest · avg 4.3★ · 72.1% 5★ · 9.3% 1★
5★
31 (72%)
4★
3 (7%)
3★
4 (9%)
2★
1 (2%)
1★
4 (9%)
+7 ratings/week
Praise: great ×12 best ×4 excellent ×4 favorite ×3 love ×3Complaints: expensive ×2
Top positive
★★★★★ Happy Gnostic
As of May 20, 2015, this is now a fantastic medical dictionary in all aspects. I highly recommend you pay the extra money because it's worth it. But this company is apparently cutting their budget by cutting back on their staff, so if…
★★★★★ Improved Icon
This is the best medical dictionary I've seen so far; although expensive, IMO it is worth it every penny. And thanks for fixing the icon by filling in the bar on the bottom - it looks much better!…
Top negative
★☆☆☆☆ NO VERBAL pronouncLCIATION
POOR NO VERBAL pronunciation…
★☆☆☆☆ 💩💩💩💩💩 Refused to Close with Nag Screen Open ‼️
I purchased this app to answer a specific question several days ago. This morning, when I open multitasking to do some housekeeping, the app refused to be swiped closed, so I opened it, and found a “Five Star Rating” nag screen. The only lo…
📈Ratings growth169 ratings+16800% lifetimeShow 3-year history estimate ▾Oct 2010Jun 2023May 2026
Tracked (45 weeks) Pre-tracking estimate (37 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Geographic ReachNot ranked
This app is currently outside the top 100 grossing in all 9 countries we monitor (US, UK, DE, FR, JP, CA, AU, BR, IN). Niche or new apps often launch this way — popularity rankings appear once daily revenue clears the regional threshold.
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.
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