Comparison

CompTIA A+. vs ZeroDay Dev

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

Head to head
About

CompTIA A+.

Features
Read full description

Master all A+ questions with Fun and Engaging Quizzes! Dive into the world of A+ exams with our comprehensive quiz app, designed to boost your knowledge, confidence, and skills. Whether you're a student, practitioner, or just exploring the field, this app is your ultimate companion for learning and growth. Topics Covered(Core 1 (220-1101)): 220-1101: Mobile Devices -Laptop Hardware -Display Components -Accessories & Ports -Networking Connectivity & Application Support 220-1101: Networking -TCP/UDP Ports & Protocols -Networking Hardware -Wireless Networking Protocols -Networked Hosts' Services -SOHO Networks -Network Configuration Concepts -Internet Connection Types & Network Types -Networking Tools 220-1101: Hardware -Cable Types -RAM -Storage Devices -Motherboards, CPUs, & Add-on Cards -Power Supply -Multifunction Devices/Printers & Settings -Printers Consumables 220-1101: Virtualization and Cloud Computing -Cloud-Computing Concepts -Client-Side Virtualization 220-1101: Hardware and Networking Troubleshooting -Best Practices to Resolve Problems -Motherboard, RAM, CPU, & Power Issues -Storage Drive & RAID Array Issues -Video, Projector, & Display Issues -Mobile Device Issues -Printers Issues -Wired & Wireless Network Issues Topics Covered(Core 2(220-1102)): 220-1102: Operating Systems -Microsoft Windows Editions -Microsoft Command-Line Tool -Windows 10 Features & Tools -Windows 10 Control Pannel Utility -Windows Settings -Windows Networking Features on Client -Application Installation & Configuration -OS Types & Purposes -OS Installation & Upgrades -MacOS/Desktop OS -Linux Client/Desktop OS 220-1102: Security -Security Measures & Purposes -Wireless Security Protocols & Authentication -Malware Detection, Removal & Prevention -Social-Engineering Attacks & Threads -Security Settings in Windows OS -Workstation Configuration for Security -Mobile & Embedded Device Security -Data Destruction & Disposal Methods -Security Settings on SOHO Networks -Browsers & Relevant Security Settings 220-1102: Software Troubleshooting -Windows OS Problems -PC Security Issues -Malware Removal -Mobile OS & Application Issues -Mobile OS & Application Security Issues 220-1102: Operational Procedures -Documentation & Support Systems Information -Change Management -Workstation Backup & Recovery Methods -Safety Procedures -Local Environment Controls -Prohibited Activity & Policy Concepts -Communication Techniques & Professionalism -Scripting -Remote Access Technologies Download now and make learning for A+ exams enjoyable and effective! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://forwaelade.web.app/CompTIAA/privacy-policy

About

ZeroDay Dev

Learn secure coding and blockchain security through hands-on challenges and real-world exploit analysis. Practice building exploit intuition with interactive exercises and track your progress through curated learning paths. The app is designed for offline use, allowing you to learn anytime, anywhere.

Highlights
  • Hands-on coding challenges
  • Real-world exploit analysis
  • Interactive practice exercises
  • Curated learning tracks
  • Progress tracking and gamification
  • Offline-first functionality
Features
Read full description

Learn to break things—before attackers do. ZeroDay Dev teaches secure coding and blockchain security through 4,000+ hands-on challenges. Learn from 120+ real-world exploits: Beanstalk, Indexed Finance, bZx, VeilCash, Sigma.Money, Bybit, and more. Each exploit is linked to verified incident records so you learn from actual on-chain events, not hypotheticals. Practice — Build exploit intuition without reading docs. Tap vulnerable lines, drag tokens into code, get instant feedback. Filter by domain (Exploits, Solidity, Rust, DeFi, Solana) or difficulty. Exercises — Full code challenges with reference solutions. Deeper dives when you're ready. Exam — Prepare for real security assessments. Timed tests across domains with performance tracking. Memory-match decks for opcodes, EIPs, and security terms. Deep Dive Hub — Curated learning tracks for Web2, Web3, Rust, ZK Proofs, and Trading. Recommended tracks driven by your weak areas. Build your own from bookmarks or missed questions. Streaks & XP — Stay consistent and level up. Daily streaks, badges, and progression keep you coming back. Offline-first — Learn on the subway, no Wi‑Fi needed. All content lives on your device. No account required—start immediately. Covers reentrancy, oracle manipulation, flash loans, proxy races, ZK trusted setup, and more. Rust, Solidity, DeFi, Solana & cybersecurity.

Screenshots

CompTIA A+.4 screens
ZeroDay Dev4 screens

Verdict

The call

CompTIA A+. and ZeroDay Dev are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. CompTIA A+. sells 6 in-app purchases, starting at $9.99 per month and ZeroDay Dev sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
CompTIA A+. versus ZeroDay Dev: the parameters behind the verdict, then further details
ParameterCompTIA A+.ZeroDay Dev
PriceFreeFree
Rating—4.8 (4 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—4 — better
Update frequency—Weekly
AdsNoNo
In-app purchasesYesYes
Monetization—Free
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size24 MB80 MB
Age rating4+4+
DeveloperForwa Elade WundeJohn Lawniczak

In-app purchases

6 purchases

CompTIA A+.

Subscriptions3
  • 1 Month$9.991 Month
  • 6 Months$19.996 Months
  • 1 Year$29.991 Year
One-time3
  • 1500$0.99
  • 3500$1.99
  • 9000$3.99
1 purchases

ZeroDay Dev

One-time1
  • Unlock All Content$4.99

Questions

Is CompTIA A+. free?
CompTIA A+. is free to download, with in-app purchases available.
Is ZeroDay Dev free?
ZeroDay Dev is free to download, with in-app purchases available.
Do CompTIA A+. or ZeroDay Dev have ads?
Neither CompTIA A+. nor ZeroDay Dev shows ads.

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