Comparison

Quail Reader vs CertDojo CISSP

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

Head to head
About

Quail Reader

Enhance learning retention with a memory-optimized reader. Import articles, EPUBs, and text into a distraction-free environment. Utilize spaced repetition and incremental reading to transform information into lasting knowledge.

Highlights
  • Memory-optimized reading
  • Spaced repetition
  • Distraction-free environment
  • Incremental reading
  • Content import (articles, EPUBs, text)
  • Knowledge modules
  • Useful annotations
Features
Read full description

Achieve complete understanding of what you learn with Quail, the world’s first memory-optimized reader! This was built for Ultralearners helping you retain what’s important so you can make the most out of what you learn. Did you know, you can forget up to 90% of what you learned in a week? Often without realizing it. It’s time to fight back. With our combination of a distraction free reading environment, easy importing of materials, spaced repetition, and incremental reading, you will focus better and accomplish more, just like our fellow Quail members. --- REMEMBER MORE with SPACED REPETITION: We ensure that everything you find important will come back to you just when you need it, based on YOUR memory. How cool is that? DISTRACTION FREE READING: Import your web articles, EPUBs, and important text for a distraction free reading experience. We clean out all the junk and ads and keep what’s important so you can learn in peace. INCREMENTAL READING: Accelerate transforming massive texts into digestible knowledge that lasts for life. Incremental reading enhances not only the speed of reading but improves your ability to make connections and retain what you learn! MODULES: Tired of endless saved materials and don’t know where to start? Us too! Organize your knowledge into modules so you can keep knowledge organized and always know what to learn next. USEFUL ANNOTATIONS: Annotations are key to getting the most out of what you learn. But other apps tend to make them useless. Quail’s annotations work for you, keep you engaged, and come back to you or your money back. FLEXIBLE FOR YOU: The way you learn is unique, that’s ok. We built Quail with that in mind. We built it so you can bring all your materials to one place and the app will be built around your own learning experience. --- Support: Email us anytime at hello@readquail.com. We are always happy to hear from you. Privacy Policy: https://www.readquail.com/privacy Terms of Service: https://www.readquail.com/terms

About

CertDojo CISSP

Features
Read full description

Master the ISC2 CISSP certification with CertDojo, Updated for the current CISSP exam (2024 refresh) — the smart way to prepare for your Certified Information Systems Security Professional exam. CertDojo tracks your progress using advanced learning techniques, including spaced repetition and response-time analysis, so you focus on the areas that need the most work — not blind repetition. Unlike traditional flashcard apps, CertDojo objectively measures your knowledge confidence with data, not guesswork. FEATURES - Adaptive question selection targets your weakest domains automatically - Spaced repetition scheduling ensures optimal review timing - Response-time analysis reveals true understanding vs. lucky guesses - Domain strength tracking across all 8 CISSP domains - Multiple study modes: Quick 10, Quick 5, Deep 25, and full Mock Exam (150 questions) - Exam readiness score based on your actual performance data - Detailed explanations with ISC2-aligned reasoning for every question - Dark mode interface designed for focused study sessions CISSP DOMAINS COVERED 1. Security and Risk Management (15%) 2. Asset Security (10%) 3. Security Architecture and Engineering (13%) 4. Communication and Network Security (13%) 5. Identity and Access Management (13%) 6. Security Assessment and Testing (12%) 7. Security Operations (13%) 8. Software Development Security (11%) Start with 10 free questions. Subscribe for unlimited access to the full question bank. SUBSCRIPTION INFO CertDojo CISSP Pro is available as a monthly auto-renewable subscription at $12.99/month. Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your account settings in the App Store after purchase. Terms of Use: https://certdojo.com/terms Privacy Policy: https://certdojo.com/privacy CISSP is a registered trademark of ISC2. CertDojo is not sponsored by, endorsed by, or affiliated with ISC2.

Screenshots

Quail Reader3 screens
CertDojo CISSP4 screens

Verdict

The call

The clearest difference is iOS requirement: Quail Reader at 15.5 against CertDojo CISSP's 17.0. 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. Quail Reader sells 3 in-app purchases, starting at $8.99 per month and CertDojo CISSP sells 1 in-app purchase, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 9 level
Quail Reader versus CertDojo CISSP: the parameters behind the verdict, then further details
ParameterQuail ReaderCertDojo CISSP
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyWeekly—
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.5 — better17.0
Further details — not scored
Size76 MB13 MB
Age rating4+4+
DeveloperAndrew YongJoseph Fago

In-app purchases

3 purchases

Quail Reader

Subscriptions2
  • Quail Monthly$8.991 Month
  • Quail Annual$69.991 Year
One-time1
  • Quail Lifetime$34.99
1 purchases

CertDojo CISSP

Subscriptions1
  • CertDojo CISSP Pro$12.991 Month

Questions

Is Quail Reader free?
Quail Reader is free to download, with in-app purchases available.
Is CertDojo CISSP free?
CertDojo CISSP is free to download, with in-app purchases available.
Do Quail Reader or CertDojo CISSP have ads?
Neither Quail Reader nor CertDojo CISSP shows ads.

Other comparisons