Comparison

PREP Self vs OnCall Scribe

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

Head to head
About

PREP Self

Access trusted pediatric learning content through a new mobile app. Build a personalized question bank by selecting blocks from various content areas to fit your learning style and schedule. Earn CME credits and MOC points with each block.

Highlights
  • Trusted PREP content
  • Customizable question bank
  • Case-based questions
  • Earn CME credits
  • Earn MOC points
  • Modern user interface
Read full description

Trusted PREP® Content, New Mobile App! For nearly 45 years, the PREP Self-Assessment Program has been a trusted source for pediatric learning and professional growth. Now, we're reimagining the experience. Meet PREP Blocks: A new, customizable way to access the same trusted PREP questions you know and value, designed to fit your learning style, pace, and schedule. • Enjoy a modern, user-friendly interface with a long-awaited mobile app and new desktop experience • Build a Question Bank by selecting blocks from content areas that match your goals • 20 case-based questions per block • Earn up to 4 AMA PRA Category 1 Credits™ and 4 MOC Part 2 Points with each block

About

OnCall Scribe

Features
Read full description

OnCall Scribe helps physicians document patient triage encounters during on-call shifts — quickly, securely, and entirely on-device. THE PROBLEM On-call doctors receive triage messages from answering services as poorly formatted text blobs. These messages have inconsistent spacing, abbreviations, and missing delimiters. Documenting each encounter means manually extracting patient details while half-asleep at 2 AM, with no good way to search your history or generate handoff reports. THE SOLUTION Copy the triage message, paste it into OnCall Scribe, and let on-device AI parse it into structured fields: patient name, callback number, date of birth, attending physician, and chief complaint. Add your clinical advice and disposition, then save. That's it — 30 seconds per encounter. KEY FEATURES AI-Powered Parsing — Uses Apple's on-device Foundation Models to intelligently extract patient data from messy answering service messages. No internet required. Specialty Customization — Configure for your specialty (OB/GYN, Pediatrics, Cardiology, Psychiatry, Family Medicine, and more). The app adapts terminology, disposition options, and parsing rules to match your practice. Search Everything — Full-text search across all records. Find any patient, any complaint, any date instantly. Shift Handoff Export — Generate formatted triage logs for any date range and share via email, text, or any app. Perfect for end-of-shift handoffs. 100% Offline — No account required. No cloud sync. No data ever leaves your device. Works in airplane mode. Privacy by Design — All data stored locally with iOS encryption. No analytics, no tracking, no third-party SDKs. Your patient data stays on your phone. DESIGNED FOR REAL ON-CALL USE Dark mode optimized for nighttime use Large tap targets for one-handed operation Quick-entry priority levels (Routine / Urgent / Emergent) Callback button to dial patients directly Follow-up flags so nothing falls through the cracks

Screenshots

PREP Self4 screens
OnCall Scribe4 screens

Verdict

The call

The clearest difference is update cadence: PREP Self at daily against OnCall Scribe's monthly. PREP Self also leads on device support (3 vs 1) and iOS requirement (15.6 vs 26.0). On price, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

PREP Self ships an update daily, OnCall Scribe monthly. The most recent releases landed on September 22, 2026 and October 2, 2026 respectively.

Scorecard3 real differences · 7 level
PREP Self versus OnCall Scribe: the parameters behind the verdict, then further details
ParameterPREP SelfOnCall Scribe
PriceFreeFree
Rating3.7 (9 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings9 — better—
Update frequencyDaily — betterMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better26.0
Further details — not scored
Size44 MB4 MB
Age rating4+12+
DeveloperAmerican Academy of PediatricsGeffrey Klein

In-app purchases

None

PREP Self

No in-app purchases

None

OnCall Scribe

No in-app purchases

Questions

Is PREP Self free?
PREP Self is free to download, with no in-app purchases.
Is OnCall Scribe free?
OnCall Scribe is free to download, with no in-app purchases.
Do PREP Self or OnCall Scribe have ads?
Neither PREP Self nor OnCall Scribe shows ads.
Which is updated more often, PREP Self or OnCall Scribe?
PREP Self ships an update daily, and OnCall Scribe monthly. Most recently, PREP Self was updated on September 22, 2026 and OnCall Scribe on October 2, 2026.

Other comparisons