Comparison

Disease Intervention Exam Prep vs Sesla

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

Head to head
About

Disease Intervention Exam Prep

Prepare for the Certified in Disease Intervention exam with up-to-date content, an extensive question bank, and detailed explanations. Track your progress, customize study plans, and take simulated exams to build confidence for public health certification.

Highlights
  • Up-to-date content
  • Extensive question bank
  • Detailed explanations
  • Progress tracking
  • Customizable study plans
  • Simulated exam mode
Features
Read full description

Prepare for the Certified in Disease Intervention Exam with Our Comprehensive Disease Intervention Exam Prep App! Disease Intervention Exam Prep is an app designed to help candidates prepare for the Certified in Disease Intervention exam, administered by the National Board of Public Health Examiners. This certification is essential for public health professionals seeking to validate their expertise in disease intervention strategies, ensuring they are equipped with the latest knowledge and skills in this critical field. Key Features: • Up-to-Date Content: Our study materials are regularly updated to reflect the latest exam content standards, ensuring you have access to the most current information. • Extensive Question Bank: Access a comprehensive question bank filled with hundreds of exam-style questions covering all essential topics relevant to disease intervention. • Detailed Explanations: Enhance your understanding with thorough explanations for every question, ensuring you grasp key concepts and their practical applications in public health. • Progress Tracking: Monitor your progress with our intuitive performance tracking feature. Identify your strengths and weaknesses in different subject areas to focus your study efforts effectively. • Customizable Study Plans: Tailor your study schedule to fit your needs. Whether you have a few weeks or several months to prepare, our app adapts to your timeline and helps you stay on track. • Simulated Exam Mode: Experience the certification exam with our timed practice tests that mimic official testing conditions, building your confidence and test-taking skills. • User-Friendly Interface: Enjoy a user-friendly and intuitive interface designed for easy navigation and seamless learning. Study on your terms, whenever and wherever you choose. • Success Stories: Join a community of successful exam candidates who have utilized our app to achieve their goals. Let their experiences inspire and motivate you on your journey. • Continuous Updates: As the field of disease intervention evolves, so does our app. We are committed to providing ongoing updates to reflect any changes in the exam content and format. Disclaimer: This app is not affiliated with, endorsed by, or associated with the National Board of Public Health Examiners (NBPHE) or the Certified in Disease Intervention (CDI) credential. All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. This app is an independent resource created to assist individuals in preparing for the exam. The content provided is for educational purposes only and is not an official study guide or endorsed material. Start your journey towards Certified in Disease Intervention certification. Download the Disease Intervention Exam Prep app now and take the first step towards achieving your professional goals! You can find more information about our Products and Premium subscription here: Terms of Use - https://examprep.help/terms.html Privacy Policy - https://examprep.help/policy.html

About

Sesla

Features
Read full description

Sesla is a guided speech-sound practice program for late talkers, kids and adults in speech therapy, and parents who want structured activities to run at home between sessions — DAILY GUIDED PRACTICE — Short, structured lessons covering articulation, picture naming, and word-finding. Build a daily habit with progress tracking, streaks, and customizable reminders. — HOW IT WORKS — Each lesson walks you through targeted speech-sound and naming exercises with clear audio prompts. Practice at your own pace, anywhere — no internet required. — WHY FAMILIES CHOOSE SESLA — • Guided lessons in articulation, naming, and word-finding • Fully native in English, Turkish, and Spanish — not a translation • On-device text-to-speech — works offline • Progress tracking, daily streaks, and practice reminders • Beautiful, dignified design • No account, no ads, no tracking — FEATURES — • Structured daily speech-practice lessons • Articulation, picture naming, and word-finding exercises • Daily progress tracking and streaks • Customizable practice reminders • On-device, offline text-to-speech • Adjustable speech rate • Full VoiceOver support and accessibility options — DESIGNED FOR — • Late talkers and children working on speech sounds • Kids and adults in speech therapy • Parents looking for between-session practice activities • Speech-Language Pathologists (SLPs) and special education teachers • Anyone practicing articulation, naming, or word-finding — ACCESSIBILITY — Built to WCAG-aligned standards: large touch targets, high-contrast mode, reduced motion, and adjustable speech rate. — PRIVACY FIRST — Your practice is private. Sesla stores everything on the device. No cloud accounts. No ads. Ever. — ATTRIBUTION — Picture-naming artwork is original work created for this app. A small number of supporting images come from Mulberry Symbols by Garry Paxton (CC BY-SA 4.0). — ABOUT THE MAKER — Sesla is built by Gökhan Oğuz, an independent developer with over a decade of work in speech technologies. Questions, feedback, or feature requests? Email m.gokhanoguz2@gmail.com or visit gokhanoguz.github.io/sesla — SUBSCRIPTION — Sesla Practice Plus unlocks unlimited daily lessons (the free tier includes 1 lesson per day) with a 14-day free trial on the annual plan. Subscriptions auto-renew until cancelled. Manage or cancel anytime from your Apple ID account settings. Terms of Use (EULA): https://gokhanoguz.github.io/sesla/terms.html Privacy Policy: https://gokhanoguz.github.io/sesla/privacy.html

Screenshots

Disease Intervention Exam Prep4 screens
Sesla4 screens

Verdict

The call

The clearest difference is update cadence: Sesla at every 5 days against Disease Intervention Exam Prep's every 4 months. On price, ads, in-app purchases 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. Disease Intervention Exam Prep sells 9 in-app purchases, starting at $8.99 per 7 days and Sesla sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Disease Intervention Exam Prep ships an update every 4 months, Sesla every 5 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard1 real difference · 8 level
Disease Intervention Exam Prep versus Sesla: the parameters behind the verdict, then further details
ParameterDisease Intervention Exam PrepSesla
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 4 monthsEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.115.0 — better
Further details — not scored
Size51 MB67 MB
Age rating12+4+
DeveloperExam Prep OUGOKHAN OGUZ

In-app purchases

9 purchases

Disease Intervention Exam Prep

Subscriptions9
  • CDI Weekly Full Access$8.997 Days
  • CDI Monthly Full Access$24.991 Month
  • CDI Monthly Full Access3 Days trial$34.991 Month
Show 6 more
  • CDI Quarterly Full Access$55.993 Months
  • CDI Quarterly Full Access3 Days trial$59.993 Months
  • CDI Semiannual Full Access$75.996 Months
  • CDI Semiannual Full Access3 Days trial$79.996 Months
  • CDI Annual Full Access$109.991 Year
  • CDI Annual Full Access3 Days trial$119.991 Year
2 purchases

Sesla

Subscriptions2
  • Sesla Practice Plus$1.991 Month
  • Sesla Practice Plus (Annual)14 Days trial$14.991 Year

Questions

Is Disease Intervention Exam Prep free?
Disease Intervention Exam Prep is free to download, with in-app purchases available.
Is Sesla free?
Sesla is free to download, with in-app purchases available.
Do Disease Intervention Exam Prep or Sesla have ads?
Neither Disease Intervention Exam Prep nor Sesla shows ads.
Which is updated more often, Disease Intervention Exam Prep or Sesla?
Disease Intervention Exam Prep ships an update every 4 months, and Sesla every 5 days. Most recently, Disease Intervention Exam Prep was updated on October 25, 2026 and Sesla on October 24, 2026.

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