Comparison

Memo vs iCTF

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

Head to head
About

Memo

Engage in quick, daily brain training with memory games and math puzzles designed to sharpen focus and mental agility. Perfect for busy schedules, it offers personalized challenges and progress tracking for all ages.

Highlights
  • Quick daily sessions under 5 minutes
  • Diverse game collection (math, memory, color, focus)
  • Personalized difficulty adjustment
  • Detailed progress tracking and reports
  • Streak tracking for habit building
  • Family-friendly with multiple profiles
Features
Read full description

Transform your daily commute into a brain workout! Memo delivers quick, engaging memory games and math puzzles that challenge your mind in just 5 minutes a day. Train your memory with fun, bite-sized exercises designed to fit into your busy schedule. Whether you're a student looking to sharpen focus, a professional wanting to stay mentally active, or a parent seeking educational games for the whole family, Memo adapts to your skill level and grows with you. Why Choose Memo? Quick Daily Sessions Complete your brain training routine in under 5 minutes. Perfect for morning coffee breaks, commutes, or whenever you need a mental refresh. Diverse Game Collection: - Math Challenges - Speed through calculations and mental math exercises that get progressively harder as you improve - Memory Tests - Remember sequences, patterns, and word lists to strengthen recall abilities - Color Games - Test reaction time and focus with our unique color-matching challenges - Focus Exercises - Build concentration through engaging attention games Track Your Progress Watch your skills develop with detailed progress charts. Monitor improvements in speed, accuracy, and consistency across all game types. Set personal records and challenge yourself to beat them. Smart Features That Make a Difference Personalized Difficulty Games automatically adjust to your performance level, ensuring you're always appropriately challenged without feeling overwhelmed. Weekly Progress Reports See how your performance trends over time with visual graphs showing your improvement in different skill areas. Streak Tracking Build a daily habit with streak counters and gentle reminders. Consistency is key to seeing real improvement in your mental agility. Multiple Game Modes From quick practice sessions to timed challenges, choose the mode that fits your mood and available time. Perfect For: - Students preparing for exams who need sharp focus and quick thinking - Professionals who want to maintain mental agility and problem-solving skills - Families looking for educational entertainment everyone can enjoy - Seniors interested in keeping their minds active and engaged - Anyone who enjoys puzzles, brain teasers, and mental challenges What Makes Memo Different Unlike complex brain training apps that require long sessions, Memo focuses on quality over quantity. Our exercises are crafted to deliver maximum engagement in minimum time. No overwhelming menus, no complicated progression systems – just pure, focused brain training that works. Educational & Entertaining Every game is designed to be both fun and beneficial. Improve your mental math skills, enhance memory retention, and boost concentration – all while enjoying yourself. Family Friendly Safe for all ages with parental controls available. Create multiple profiles so the whole family can track their individual progress. No Gimmicks We don't make unrealistic promises. Memo is simply a well-designed collection of brain games and memory exercises that make mental training enjoyable and accessible. Start Your Journey Today Key Features at a Glance: - 5-minute daily brain workouts - Math, memory, focus, and reaction games - Progress tracking and statistics - Adaptive difficulty levels - Family-friendly content - Works offline - train anywhere - Regular new content updates - Clean, intuitive interface - Multiple user profiles - Achievement system Brain games shouldn't feel like homework. Memo makes memory training, math practice, and focus exercises genuinely enjoyable. Challenge yourself, compete with friends, or simply enjoy a few minutes of engaging mental stimulation. Transform idle moments into opportunities for growth. Make every day a little sharper with Memo – your pocket-sized brain training companion. Download now and start your first 5-minute brain workout! -- https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

iCTF

Features
Read full description

Learn or sharpen your security skills with a mobile CTF, quiz generator, and fundamentals section. iCTF values your privacy. ZERO data is collected from the app; all analytics and user achievement tracking is performed locally and encrypted. All of your data stays with you, on your phone. INTERACTIVE SECURITY CHALLENGES Build practical cybersecurity knowledge through engaging Capture The Flag (CTF) challenges. Explore cryptography, web application security, digital forensics, code analysis, network protocols, and more. Each challenge teaches real skills used by security professionals to protect systems and data. BUILT-IN TERMINAL EMULATOR Practice command-line skills with a fully functional terminal featuring 40+ Unix commands. Navigate the virtual filesystem, analyze files, decode data, and solve puzzles in a safe learning environment. Includes cat, grep, find, base64, xxd, md5sum, sha256sum, and many more. CYBERQUIZZER - CAREER PREP Prepare for cybersecurity career interviews with comprehensive study modules: • Security Operations: Active Directory, authentication protocols, system administration • Security Engineering: Architecture design, threat modeling, secure development • Hardware Security: Embedded systems, firmware analysis, IoT security concepts • Defense & Response: Incident handling, log analysis, digital forensics Each question includes detailed explanations with examples and industry best practices. PROGRESSIVE LEARNING PATH • Difficulty levels from Beginner to Expert • Hint system to guide your learning • Solution explanations after practice attempts • Progress tracking across all modules • Earn points and celebrate achievements SAFE LEARNING ENVIRONMENT All challenges run in a completely sandboxed environment on your device. Learn security concepts safely — everything stays within the app with no external connections required. FEATURES - 10+ educational challenges across 8 security domains - 100+ career interview preparation questions - Interactive terminal with virtual filesystem - Code analysis sandbox for learning - Works offline — no internet required - Dark theme for comfortable extended study - Progress saved locally on your device PERFECT FOR • IT professionals expanding their security knowledge • Students studying for cybersecurity certifications • Career changers preparing for security roles • Technology enthusiasts exploring information security • Anyone building defensive security skills Begin your cybersecurity education today. Download iOScTF and start learning!

Screenshots

Memo4 screens
iCTF4 screens

Verdict

The call

The clearest difference is price: Memo at Free against iCTF's $3.99. Memo also leads on update cadence (every 5 days vs every 2 months). iCTF's advantage is in-app purchases (none vs 8) and device support (3 vs 1). On ads 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

Memo is free to download; iCTF costs $3.99 up front. Memo sells 8 in-app purchases, starting at $2.99 per 7 days. iCTF asks for nothing beyond the download.

UpkeepUpdate frequency

Memo ships an update every 5 days, iCTF every 2 months. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

Scorecard5 real differences · 5 level
Memo versus iCTF: the parameters behind the verdict, then further details
ParameterMemoiCTF
PriceFree — better$3.99
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 5 days — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.413.0 — better
Further details — not scored
Size59 MB24 MB
Age rating4+4+
DeveloperSiarhei KellerJeremy Laratro

In-app purchases

8 purchases

Memo

Subscriptions8
  • Memo Premium Weekly$2.997 Days
  • Memo Premium +7d Free7 Days trial$4.991 Month
  • Memo Premium +30d Free1 Month trial$4.991 Month
Show 5 more
  • Memo Premium +30d Free1 Month trial$19.991 Month
  • Memo Premium +7d Free7 Days trial$29.991 Year
  • Memo Premium +30d Free1 Month trial$29.991 Year
  • Memo Premium +7d Free7 Days trial$79.991 Year
  • Memo Premium +30d Free1 Month trial$79.991 Year
None

iCTF

No in-app purchases

Questions

Is Memo free?
Memo is free to download, with in-app purchases available.
Is iCTF free?
iCTF costs $3.99, with no in-app purchases.
Do Memo or iCTF have ads?
Neither Memo nor iCTF shows ads.
Which is updated more often, Memo or iCTF?
Memo ships an update every 5 days, and iCTF every 2 months. Most recently, Memo was updated on October 27, 2026 and iCTF on October 25, 2026.

Other comparisons