Comparison

Cardcore Flashcards vs ZelHack Cybersecurity Training

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

Head to head
About

Cardcore Flashcards

Features
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The first flashcard app with a heavy focus on perfecting UX - Incredible notion integration with the quickest and most fluid workflow in the world - SHARE decks with your friends - FSRS (Same space repetition algorithm as ANKI) Swipe left or right to rate your cards — four difficulty levels, buttery smooth animations, and FSRS scheduling that learns how your brain works. Just like Anki, but without the clunky interface. STUDY YOUR WAY • Create local decks manually or import from CSV, Anki, or by pasting your notes • Connect to Notion and turn your existing pages into flashcards instantly • Share decks with friends using a single tap SMART SCHEDULING • Powered by FSRS — the same spaced repetition algorithm trusted by serious learners • Cards reappear exactly when you're about to forget them • See your stability score and next review time after every session RICH CONTENT • Embed images, YouTube videos, and code snippets in your cards • Nested bullet points render exactly like they do in Notion • Syntax-highlighted code blocks for technical topics BUILT FOR FOCUS • No distractions — just you and your cards • Four-quadrant swipe system: Again, Hard, Good, Easy • Progress tracked privately on your device Subscription: Flashcards Premium unlocks unlimited decks and advanced features. Available as monthly, yearly, or lifetime plans. Yearly plan includes a 7-day free trial. By subscribing, you agree to our Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://homeofficesinternational.com/privacy-policy.html

About

ZelHack Cybersecurity Training

Master cybersecurity engineering with comprehensive training, including hands-on labs and expert lectures. Prepare for the globally recognized RCCE certification and advance your career in this rapidly growing field.

Highlights
  • 1,118 downloadable slide-based courses
  • Expert lectures by Haja Mo
  • 3,700 animated ZelCards
  • 221+ hands-on labs
  • Interactive quizzes
  • 35 training modules
Features
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ZELHACK — COMPLETE CYBERSECURITY ENGINEER TRAINING The official app from Rocheston. GET CERTIFIED. GET HIRED. Train for one of technology’s most coveted titles: Cybersecurity Engineer. Cybersecurity engineering is one of the world’s fastest-growing professional fields. With the average industry salary reaching USD 150,000 per year, there has never been a better time to master offensive and defensive security. Go beyond flashcards and quiz apps. ZelHack delivers visual cybersecurity training through 1,118 downloadable slide-based courses, expert lectures by Haja Mo, 3,700 animated ZelCards, 221+ hands-on labs, premium audio, interactive quizzes and 35 modules. THE OFFICIAL RCCE TRAINING PATHWAY The Rocheston Certified Cybersecurity Engineer (RCCE) is a globally recognized certification sought by employers, enterprises and government organizations. RCCE is ANAB-accredited under ISO/IEC 17024 and recognized by the U.S. Department of Defense under DoD 8140 for 16 cybersecurity work roles. ZelHack delivers the complete RCCE training curriculum on your phone. Learn how attackers breach systems, how defenders stop them and how cybersecurity engineers protect modern organizations. START WITH ETHICAL HACKING Your $1.99 download includes the complete Ethical Hacking module. Learn how systems are compromised, how attacks progress and how defenders respond. UNLOCK THE COMPLETE RCCE ECOSYSTEM Upgrade to the Enterprise subscription for just $4.99 per year and unlock: • 1,118 Downloadable Cybersecurity Courses: Visual, slide-based lessons across 35 modules, from networking fundamentals to threat hunting. • 3,700 Animated ZelCards: Beautiful, bite-sized and gamified lessons covering 35 deep-dive modules. • 221+ Hands-On Labs: Practical scenarios that build genuine technical skill. Study the concepts on your iPhone, then perform the accompanying attacks and defenses on your desktop computer. • Complete RCCE Course Content: Premium audio walkthroughs, interactive quizzes, practical examples and comprehensive lessons for learning anywhere. This is not a sampler, question bank or companion app. It is the complete RCCE learning curriculum—every course, module, lesson and quiz—delivered on your phone, with hands-on labs performed on your computer. YOUR PATH TO RCCE CERTIFICATION Step 1: Complete the curriculum and all 3,700 ZelCards in the Enterprise tier. Step 2: Unlock the RCCE Eligibility Certificate through a one-time in-app purchase of $299. It confirms verified curriculum completion and qualifies you to sit for the official examination. Step 3: Attempt the RCCE Level 1 examination at Rocheston. Pass and earn the full RCCE credential—recognized across corporate, government and defense sectors. The ZelCards and courses are your complete exam preparation. Master them all and walk into the RCCE Level 1 examination ready. WHAT YOU WILL MASTER • Systems and Network Security: Linux and Windows hardening, network sniffing, traffic analysis, firewalls and intrusion detection. • Offensive Security: Information gathering, penetration testing, web application vulnerabilities and database exploitation. • Defensive Operations: SOC management, Cyber Threat Intelligence, incident response and digital forensics. • Modern Threats and Engineering: Ransomware defense, Zero Trust, DevSecOps, cloud security and business continuity/disaster recovery. • Next-Generation Technology: AI in cybersecurity, blockchain security and quantum computing. PRIVATE BY DESIGN No login. No account. No tracking. Zero data collection. ZelHack runs entirely on your device, so your identity, activity and learning progress remain yours. Transform cybersecurity training into a daily habit. Download ZelHack, begin your ethical-hacking journey and complete a full cybersecurity engineering education from your phone. Cybersecurity Engineer is a registered trademark of Rocheston. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Cardcore Flashcards4 screens
ZelHack Cybersecurity Training4 screens

Verdict

The call

The clearest difference is price: Cardcore Flashcards at Free against ZelHack Cybersecurity Training's $1.99. Cardcore Flashcards also leads on update cadence (every 2 days vs weekly). ZelHack Cybersecurity Training's advantage is in-app purchases (none vs 3). On 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

Cardcore Flashcards is free to download; ZelHack Cybersecurity Training costs $1.99 up front. Cardcore Flashcards sells 3 in-app purchases, starting at $0.99 per month. ZelHack Cybersecurity Training asks for nothing beyond the download.

UpkeepUpdate frequency

Cardcore Flashcards ships an update every 2 days, ZelHack Cybersecurity Training weekly. The most recent releases landed on October 10, 2026 and October 4, 2026 respectively.

Scorecard3 real differences · 7 level
Cardcore Flashcards versus ZelHack Cybersecurity Training: the parameters behind the verdict, then further details
ParameterCardcore FlashcardsZelHack Cybersecurity Training
PriceFree — better$1.99
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 2 days — betterWeekly
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free with in-app purchases
DevicesiPhone, MaciPhone, iPad, Apple Watch — better
Requires iOS18.017.0 — better
Further details — not scored
Size45 MB3.5 GB
Age rating4+4+
DeveloperAlexander KvammeHaja Mohideen

In-app purchases

3 purchases

Cardcore Flashcards

Subscriptions2
  • Premium7 Days trial$0.991 Month
  • Premium7 Days trial$9.991 Year
One-time1
  • Premium$19.99
None

ZelHack Cybersecurity Training

No in-app purchases

Questions

Is Cardcore Flashcards free?
Cardcore Flashcards is free to download, with in-app purchases available.
Is ZelHack Cybersecurity Training free?
ZelHack Cybersecurity Training costs $1.99, with no in-app purchases.
Do Cardcore Flashcards or ZelHack Cybersecurity Training have ads?
Neither Cardcore Flashcards nor ZelHack Cybersecurity Training shows ads.
Which is updated more often, Cardcore Flashcards or ZelHack Cybersecurity Training?
Cardcore Flashcards ships an update every 2 days, and ZelHack Cybersecurity Training weekly. Most recently, Cardcore Flashcards was updated on October 10, 2026 and ZelHack Cybersecurity Training on October 4, 2026.

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