Comparison

DHS Board Review vs PerioCalc

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

Head to head
About

DHS Board Review

Prepare for your dental hygiene board exams with a comprehensive study tool. Access thousands of practice questions, case studies, and mock exams to build confidence and improve your chances of passing.

Highlights
  • 4000+ Practice Questions
  • 12 Case Studies
  • Mock Board Exams
  • Timed Tests
  • Daily Pop Quiz Notifications
  • Digital Textbook
  • On-demand Recorded Lectures
Features
Read full description

Confidence grows one answer at a time. Build yours with the DHS Board Review App. Join the thousands of dental hygiene students who’ve passed their NBDHE with confidence. DHS is the trusted leader in dental hygiene board preparation, with a 99% pass rate among our students. Our app is your ultimate study partner for conquering the National Board Dental Hygiene Examination (NBDHE). Basic Features: -4000+ Practice Questions Premium Features: - 12 Case Studies - Mock Board Exams - Timed Tests - Daily Pop Quiz Notifications Attendee Features: Free with Board Review Registration! - All Premium Features Included - Digital Textbook - On-demand Recorded Lectures Terms of Use (EULA) https://www.dhseminars.com/pages/end-user-license-agreement-eula-for-dental-hygiene-seminars-llc

About

PerioCalc

This educational tool assists dental students and professionals in understanding and applying the latest periodontal classification guidelines for staging and grading periodontitis and peri-implantitis. It offers instant results for case-based learning, focusing on the 2018 Classification.

Highlights
  • Periodontal classification learning
  • Staging and grading of periodontitis
  • Peri-implantitis classification
  • Case-based learning tool
  • Instant results
  • Based on 2018 Classification
Features
Read full description

Learn how to implement the new Periodontal Classification including staging and grading. The PerioCalc is an educational periodontal classification calculator that helps dental students and dentists understand what data to consider and how to use these for staging and grading of periodontitis and peri-implantitis consistent with the latest periodontal classification guidelines. The calculator is brief and efficient and provides an opportunity for case-based learning. Staging and grading is based on the 2018 Classification and results are returned instantly after data input. IMPORTANT NOTE: This calculator is an educational tool and should not be used for patient care, medical decisions or to substitute physician diagnosis.

Screenshots

DHS Board Review4 screens
PerioCalc4 screens

Verdict

The call

The clearest difference is review sentiment: PerioCalc at 100% against DHS Board Review's 20%. PerioCalc also leads on rating (5.0 vs 3.3) and in-app purchases (none vs 6). DHS Board Review's advantage is update cadence (every 9 days vs every 3 months) and ratings volume (34 vs 6). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. DHS Board Review sells 6 in-app purchases, starting at $2.99 per month. PerioCalc asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PerioCalc holds the better App Store score, 5.0 against 3.3. That said, the two scores are not equally well evidenced: DHS Board Review has 34 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 20% of DHS Board Review's written reviews are positive against 100% of PerioCalc's.

UpkeepUpdate frequency

DHS Board Review ships an update every 9 days, PerioCalc every 3 months. The most recent releases landed on October 25, 2026 and October 17, 2026 respectively.

Scorecard6 real differences · 4 level
DHS Board Review versus PerioCalc: the parameters behind the verdict, then further details
ParameterDHS Board ReviewPerioCalc
PriceFreeFree
Rating3.3 (34 ratings)5.0 (6 ratings) — better
Positive reviews20.0% of reviews100.0% of reviews — better
Number of ratings34 — better6
Update frequencyEvery 9 days — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.614.0 — better
Further details — not scored
Size192 MB22 MB
Age rating4+12+
DeveloperDental Hygiene Seminars Inc.Rutgers, The State University of New Jersey

Customer experience

DHS Board Review

All ratings34 ratings
Positive44.1%
Neutral17.6%
Negative38.2%
Written reviews35 reviews
Positive20.0%
Neutral25.7%
Negative54.3%

PerioCalc

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

6 purchases

DHS Board Review

Subscriptions5
  • Bacic Monthly Subscription$2.991 Month
  • Dhs Premium Subscription$3.991 Month
  • Premium Subscription$3.991 Month
Show 2 more
  • Basic Annual Subscription$29.991 Year
  • Premium Annual Subscription$39.991 Year
One-time1
  • DHS Extra Feature$19.99
None

PerioCalc

No in-app purchases

Questions

Is DHS Board Review free?
DHS Board Review is free to download, with in-app purchases available.
Is PerioCalc free?
PerioCalc is free to download, with no in-app purchases.
Which has better reviews, DHS Board Review or PerioCalc?
PerioCalc is rated higher. DHS Board Review averages 3.3 out of 5 from 34 ratings, while PerioCalc averages 5.0 from 6 ratings.
Do DHS Board Review or PerioCalc have ads?
Neither DHS Board Review nor PerioCalc shows ads.
Which is updated more often, DHS Board Review or PerioCalc?
DHS Board Review ships an update every 9 days, and PerioCalc every 3 months. Most recently, DHS Board Review was updated on October 25, 2026 and PerioCalc on October 17, 2026.

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