Comparison

HemeOncBuddy vs Primum

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

Head to head
About

HemeOncBuddy

This app provides quick access to practice-changing clinical trials in Hematology and Oncology. It offers simplified summaries of trial background, inclusion/exclusion criteria, primary endpoints, and outcomes for easy reference.

Highlights
  • Practice-changing clinical trial summaries
  • Hematology and Oncology focus
  • Simplified trial information
  • Inclusion and exclusion criteria
  • Primary endpoints and outcomes
  • Quick reference tool
Features
Read full description

HemeOncBuddy is a free study hub built for hematology and oncology fellows and trainees - everything you need to keep up with the literature and prep for boards, in one fast, searchable app. WHAT'S INSIDE - 1,500+ pivotal clinical-trial summaries, each in the same structure (background, inclusion criteria, arms, primary/secondary endpoints, median follow-up, key results, notable toxicities) so you can scan them quickly. - A Question Bank with board-style questions, tutor and timed modes, explanations, and progress tracking. - ~2,000 active-recall flashcards across oncology, malignant and benign heme, and pharmacology — plus visual staging decks. - 120+ concise disease-site board-prep notes. - A conference & abstract-deadline tracker so you never miss a submission window. MADE FOR STUDYING - Full dark mode and adjustable text size. - Optional free account (Sign in with Apple, Google, or email) to sync your saved trials, Qbank progress, and notes across iPhone, iPad, and Mac. - No ads. No paywall. No login required to browse. HemeOncBuddy is an educational study aid only. It is not a substitute for medical advice, clinical judgment, or current guidelines, and must not be used to diagnose or treat patients. Always verify against primary literature and current guidelines.

About

Primum

Connect with expert oncologists for case-specific advice and treatment decision support. This app facilitates direct messaging with specialists, offering actionable insights and a platform to manage your inquiries efficiently.

Highlights
  • Search and filter expert oncologists
  • Direct messaging with specialists
  • Real-time chat and notifications
  • Case-specific advice
  • Inbox management
  • Reference past inquiries
Features
Read full description

Sometimes even the experts need experts. Primum helps oncologists get more confidence in their treatment decisions by making it easy to find other expert oncologists and get actionable, case-specific advice fast. The official Primum app puts high-quality advice from expert oncologists in your pocket. "Prompt response. Excellent suggestions outlining the different treatment options/approaches for a rare clinical scenario without much data in the literature to guide decision making" - Community Oncologist, FL "It was really helpful to hear the expert recommendations and I agree with his recommendations. This topic is quite interesting and difficult to deal with. I appreciate a lot the recommendations." - Community Oncologist, MA "Very detailed response, clear thought process, mentioned experience with similar case. Overall - excellent!" - Community Oncologist, CT Find and select an expert - Search with keywords or phrases - Filter for expertise based on focus area - Review their experience before choosing to message Message an expert directly - Choose the expert you wish to message - Submit a brief description of your question directly to your chosen expert - Chat in real-time if you are both online, or get notified when they respond Get notified of important inquiry updates - See when you have unread messages - View the count of unread messages - Receive text and/or email alerts when you get a new message, a new inquiry, or when an inquiry is closed Rate your experience - Submit ratings and feedback on every question, to help Primum and our experts improve Manage your inbox - Keep your inbox uncluttered and focused by closing inquiries once they have been answered Reference past questions - View all closed inquiries to refer to past questions and answers

Screenshots

HemeOncBuddy4 screens
Primum4 screens

Verdict

The call

The clearest difference is rating: HemeOncBuddy at 5.0 against Primum's 4.2. HemeOncBuddy also leads on ads (none vs shown) and monetization model (free vs ad-supported). Primum's advantage is update cadence (every 2 months vs every 24 months). On price, review sentiment, 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

HemeOncBuddy holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 17 and 5 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

HemeOncBuddy ships an update every 24 months, Primum every 2 months. The most recent releases landed on August 5, 2026 and August 4, 2026 respectively.

Scorecard5 real differences · 5 level
HemeOncBuddy versus Primum: the parameters behind the verdict, then further details
ParameterHemeOncBuddyPrimum
PriceFreeFree
Rating5.0 (17 ratings) — better4.2 (5 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings17 — better5
Update frequencyEvery 24 monthsEvery 2 months — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size16 MB53 MB
Age rating17+17+
DeveloperVeli BakalovPRIMUM HEALTH, INC.

Customer experience

HemeOncBuddy

All ratings17 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Primum

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

HemeOncBuddy

No in-app purchases

None

Primum

No in-app purchases

Questions

Is HemeOncBuddy free?
HemeOncBuddy is free to download, with no in-app purchases.
Is Primum free?
Primum is free to download, with no in-app purchases.
Which has better reviews, HemeOncBuddy or Primum?
HemeOncBuddy is rated higher. HemeOncBuddy averages 5.0 out of 5 from 17 ratings, while Primum averages 4.2 from 5 ratings.
Do HemeOncBuddy or Primum have ads?
Primum shows ads; HemeOncBuddy does not.
Which is updated more often, HemeOncBuddy or Primum?
HemeOncBuddy ships an update every 24 months, and Primum every 2 months. Most recently, HemeOncBuddy was updated on August 5, 2026 and Primum on August 4, 2026.

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