Comparison

First Aid Cases vs Histology

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

Head to head
About

First Aid Cases

Prepare for the USMLE Step 1 exam with a comprehensive collection of patient cases. This app offers high-yield clinical scenarios, active learning questions, and full-color images to reinforce key concepts. It's designed for side-by-side study with a popular medical textbook.

Highlights
  • 350 high-yield patient cases
  • Active learning questions and answers
  • 300+ clinical images and illustrations
  • Pathophysiology explanations
  • Note-taking and highlighting
  • Case progress tracking
  • Bookmark cases
Features
Read full description

Master USMLE® Step 1 through 350 high-yield clinical cases. First Aid Cases for the USMLE® Step 1 transforms high-yield concepts into realistic patient scenarios that strengthen clinical reasoning and prepare you for exam day. Based on the trusted First Aid™ series, this interactive app includes 350 clinical cases covering every major Step 1 topic. Each case combines active learning questions, detailed explanations, and full-color clinical images to reinforce essential concepts and improve long-term retention. FEATURES • 350 high-yield clinical cases • Active learning questions with detailed explanations • 300+ full-color clinical images and illustrations • Organization matched to First Aid for the USMLE Step 1 • Reinforces concepts through realistic patient scenarios • Perfect for USMLE Step 1 preparation COMPLETE STEP 1 COVERAGE • Biochemistry • Immunology • Microbiology • Pharmacology • Public Health Sciences • Cardiovascular • Endocrine • Gastrointestinal • Hematology & Oncology • Musculoskeletal • Neurology • Psychiatry • Renal • Reproductive • Respiratory • Skin & Connective Tissue POWERFUL STUDY TOOLS • Highlight important concepts • Bookmark difficult cases • Add personal notes • Track your progress • Mark completed cases • Email notes • Optimized for iPhone and iPad Expanded Apps Terms of Service: https://expandedapps.com/terms-of-use/ Expanded Apps Privacy Policy: https://expandedapps.com/privacy-policy/

About

Histology

This study aid offers self-testing with micrographs of basic human body tissues. It covers cell biology, epithelia, glands, connective tissue, muscle, and the peripheral nervous system.

Highlights
  • Micrograph self-testing
  • Six sets of basic tissue coverage
  • Cell Biology for Histologists
  • Epithelia and Glands
  • Connective Tissue and Muscle
  • Peripheral Nervous System
Features
Read full description

The BT Histology SecondLook™ application is a study aid that provides a series of micrographs for users to self-test their level of knowledge and ability to recognize histological structures. It contains six sets covering the basic tissues of the human body, including Cell Biology for the Histologist, Epithelia, Glands, Connective Tissue, Muscle, and the Peripheral Nervous System.

Screenshots

First Aid Cases4 screens
Histology4 screens

Verdict

The call

The clearest difference is in-app purchases: Histology at none against First Aid Cases's 1. Histology also leads on iOS requirement (9.0 vs 15.6). First Aid Cases's advantage is review sentiment (45% vs 33%). On price, update cadence, 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. First Aid Cases sells 1 one-off in-app purchase. Histology asks for nothing beyond the download.

UpkeepUpdate frequency

First Aid Cases ships an update every 11 months, Histology every 10 months. Both last shipped on October 2, 2026.

Scorecard4 real differences · 6 level
First Aid Cases versus Histology: the parameters behind the verdict, then further details
ParameterFirst Aid CasesHistology
PriceFreeFree
Rating—3.7 (3 ratings) — better
Positive reviews45.0% of reviews — better33.3% of reviews
Number of ratings—3 — better
Update frequencyEvery 11 monthsEvery 10 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.69.0 — better
Further details — not scored
Size106 MB32 MB
Age rating12+17+
DeveloperExpanded AppsThe University of Michigan

Customer experience

First Aid Cases

Written reviews20 reviews
Positive45.0%
Neutral10.0%
Negative45.0%

Histology

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

In-app purchases

1 purchases

First Aid Cases

One-time1
  • First Aid Cases USMLE Step 1$44.99
None

Histology

No in-app purchases

Questions

Is First Aid Cases free?
First Aid Cases is free to download, with in-app purchases available.
Is Histology free?
Histology is free to download, with no in-app purchases.
Do First Aid Cases or Histology have ads?
Neither First Aid Cases nor Histology shows ads.
Which is updated more often, First Aid Cases or Histology?
First Aid Cases ships an update every 11 months, and Histology every 10 months. Most recently, First Aid Cases was updated on October 2, 2026 and Histology on October 2, 2026.

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