Best 2021 Cdc Sti Apps & Games

22+ iOS apps & games curated and reviewed

4.6 avg rating
19 free apps & games
Updated October 2026

With an average user rating of 4.6★, the 2021 cdc sti category is one of the App Store's strongest. Browse all 22+ apps and games we track, sorted so the most loved ones surface first.

Compare top 2021 Cdc Sti Apps & Games (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1STI Tx GuideSTI Tx GuideFree3.5★ (36)NoNoNov 2026
22021 CDC STI (STD) Guidelines2021 CDC STI (STD) Guidelines$2.99—NoNoMay 2026
3MDCalc Medical CalculatorMDCalc Medical CalculatorFree4.9★ (52K)NoNoNov 2026
4epocrates: Drug Info & Pill IDepocrates: Drug Info & Pill IDFree4.4★ (7.2K)YesYesNov 2026
5Play Safe - STI & Sex trackerPlay Safe - STI & Sex trackerFree4.8★ (6)NoYesOct 2026
6Tracker : STI screeningsTracker : STI screeningsFree—NoNoOct 2026
7Scary Granny Nun Game 2019Scary Granny Nun Game 2019Free4.1★ (2.6K)NoNoNov 2026
8Sexually Transmitted (STDs)Sexually Transmitted (STDs)Free4.6★ (7)NoNoOct 2026

Top Picks for 2021 Cdc Sti

MDCalc Medical Calculator#3

MDCalc Medical Calculator by MD Aware, LLC

Clinical Decision Support
Worth Considering
🏥 Medical
4.9😊(52K ratings)
Free
MDCalc Medical Calculator screenshot 1
MDCalc Medical Calculator screenshot 2
MDCalc Medical Calculator screenshot 3
MDCalc Medical Calculator screenshot 4
MDCalc Medical Calculator screenshot 5
MDCalc Medical Calculator screenshot 6

This app provides over 900 evidence-based medical calculators, risk scores, and clinical tools for healthcare professionals. It offers offline functionality, expert insights, and CME tracking to support patient care at the bedside. Tools are developed and validated by board-certified physicians.

What We Love

  • ⭐ Excellent resource
  • 🔍 Helpful and accurate
  • 🔥 Essential for clinical practice
  • 🤖 Useful for medical students and residents
  • 💻 Easy to use interface
  • 📚 Comprehensive library of calculators

Room to Improve

  • 🐛 Crashes and bugs after updates
  • 🔒 Mandatory login/registration issues
  • 📱 Poor user experience on mobile devices
  • 🔋 Battery drain and overheating
  • 🔍 Lack of certain measurement options (e.g. feet/inches)

More 2021 Cdc Sti apps to explore

FAQ about 2021 Cdc Sti

What are the best 2021 cdc sti apps & games for iPhone?
STI Tx Guide tops our 2021 cdc sti apps & games ranking as of October 2026, with a 3.5-star average from 36 App Store ratings, and it's free to download.
Yes — 19 of the top 2021 cdc sti apps & games we rank are free to download, including STI Tx Guide and MDCalc Medical Calculator.
STI Tx Guide has no ads and has no in-app purchases, according to its App Store listing as of October 2026.
We track 22+ 2021 cdc sti apps & games on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.