Comparison

Hacktivate vs MemoryTime

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

Head to head
About

Hacktivate

Engage in a cybersecurity challenge with 240 missions across a global map, utilizing real hacking techniques. Learn skills from basic ciphers to advanced firewalls, with tutorials and scalable difficulty.

Highlights
  • 240 graded cybersecurity missions
  • Real-world hacking techniques
  • Hacker's Toolbox (hashing, encryption, ciphers)
  • Global progression across continents
  • Comprehensive tutorials and documentation
  • Scalable difficulty for all levels
  • Cross-device sync (iPhone, iPad, Mac)
Features
Read full description

Crack codes. Break firewalls. Conquer the map. Hacktivate is the ultimate cybersecurity challenge: a world map of 240 missions where every puzzle is built on real cybersecurity techniques hackers use. From classic ciphers to covert steganography, you’ll sharpen your brain while infiltrating deeper into the network. No fluff. No filler. Just pure challenges. - 240 graded missions across the Americas, Europe, Asia, and more – unlock all the continents with a one-time purchase. - The Hacker’s Toolbox: hashing, encryption, XOR, ciphers, and beyond. - Real-world attack techniques through Unix terminals, web browsers, digital forensics, SQL injection, and more. - Global progression: unlock regions and learn different specialties each time. - Comprehensive tutorials and documentation teach you the skills you need to win. - Difficulty that scales: from rookies breaking their first code to cyber masterminds cracking the strongest firewalls. - Play on iPhone, iPad, and Mac with a single purchase – your progress is auto-synced. - Include 10 challenge hints for free, but you can buy more using in-app purchase. Every lock is a challenge. Every mission is a test. Every solution pulls you deeper into the system. The network is waiting, and your mission starts now! Terms of service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula Privacy policy: https://www.hacktivate.app/privacy Hacktivate for schools: https://www.hacktivate.app/schools

About

MemoryTime

Features
Read full description

MemoryTime is a calm, focused flashcard app built around the SM-2 spaced repetition algorithm, the same science behind proven memory systems, redesigned for a clean iPhone experience with no account required. You tell it what you know. It schedules what you've forgotten. Over time, you remember everything. - HOW IT WORKS Create a deck, add your cards, and start studying. After each card, rate your recall: Again, Hard, Good, or Easy. MemoryTime calculates the optimal review interval for each card, longer gaps as your confidence grows, shorter gaps for cards you miss. Fifteen focused minutes a day builds lasting memory that textbooks can't match. - FEATURES · SM-2 Spaced Repetition - study smarter, not longer · Swipe to rate - natural card-flinging gesture · Card stack view - see exactly how many cards remain · Daily study streak - build a habit, track your progress · Daily card limit - keep sessions calm (10 / 20 / 50 / Unlimited) · Study reminders - optional daily notifications with your due card count · Offline & private - no account, no sync, no ads, zero data collected · Archive decks - keep completed material as a reference without cluttering your active queue - STARTER PACKS Jump-start your learning with expertly crafted, fact-checked decks: - Nursing & Human Anatomy - 120+ cards across 8 decks: skeletal, cardiovascular, respiratory, nervous, digestive, urinary, endocrine & immune systems, nursing fundamentals, and pharmacology. Built for nursing students and healthcare workers. - SAT Vocabulary - 50 high-frequency words with definitions, part of speech, and usage examples across 2 decks. - Language Foundations - Spanish greetings, numbers, essential verbs, colors, and days; French greetings and verbs; Greek & Latin roots. 130+ cards across 8 decks. - American Studies - US Presidents, Civil Rights Movement, all 50 States & Capitals, and key historical events. 120+ cards across 8 decks. - Python & Computer Science - Python syntax, control flow, functions, data structures, OOP, Big O notation, classic algorithms, and practical Python. 130+ cards across 8 decks. - CS Interview Prep — System design, databases, networking, OS & concurrency, advanced algorithms, design patterns, and behavioral interview — 130+ cards across 8 decks - Bible Memory Verses - 30 KJV verses on salvation, faith, and wisdom across 3 decks. Free. - PRO The free tier includes 3 decks with full spaced repetition and all features. Upgrade to Pro ($2.99, one-time) to unlock unlimited decks. - AI DECK GENERATION Pro + AI members on Apple Intelligence-capable devices can paste any text, notes, articles, study guides, and let on-device AI build a complete flashcard deck. Fully private: your text is processed on your device and never sent anywhere. - PRIVACY MemoryTime collects no personal data. No account. No tracking. No third-party analytics. Your decks, cards, and study history never leave your device. https://edgedsword.github.io/MemoryTime-Privacy-Policy/ - SUPPORT Have a question or feedback? We'd love to hear from you. AppsByMurphy@Gmail.com

Screenshots

Hacktivate4 screens
MemoryTime4 screens

Verdict

The call

The clearest difference is update cadence: Hacktivate at weekly against MemoryTime's every 3 weeks. 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. Hacktivate sells 4 one-off in-app purchases and MemoryTime sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Hacktivate ships an update weekly, MemoryTime every 3 weeks. The most recent releases landed on November 5, 2026 and November 9, 2026 respectively.

Scorecard1 real difference · 9 level
Hacktivate versus MemoryTime: the parameters behind the verdict, then further details
ParameterHacktivateMemoryTime
PriceFreeFree
Rating4.7 (33 ratings) — better—
Positive reviews88.7% of reviews—
Number of ratings33 — better—
Update frequencyWeekly — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS26.0 — better26.2
Further details — not scored
Size184 MB2 MB
Age rating4+4+
DeveloperHudson Heavy IndustriesMichael Murphy

Bugs and requests

Hacktivate

Reported bugs

1 issue
  • 🐛 Useless but paid-for hint system

Requested features

1 request
  • Dark mode option

MemoryTime

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Hacktivate

One-time4
  • Hint Packet$0.99
  • Hint Payload$3.99
  • Hint Overload$9.99
Show 1 more
  • Unlock Campaign$14.99
10 purchases

MemoryTime

One-time10
  • Bible Memory VersesFree
  • SAT Vocabulary Pack$0.99
  • Nursing & Human Anatomy Pack$0.99
Show 7 more
  • CS Interview Prep Pack$0.99
  • Python & Computer Science Pack$0.99
  • American Studies Pack$0.99
  • Small Tip - Thank You!!!$0.99
  • Pro - Unlimited Decks$2.99
  • Generous Tip - Thank You!!!$2.99
  • Pro+AI Unlimited Decks & Generation$6.99

Questions

Is Hacktivate free?
Hacktivate is free to download, with in-app purchases available.
Is MemoryTime free?
MemoryTime is free to download, with in-app purchases available.
Do Hacktivate or MemoryTime have ads?
Neither Hacktivate nor MemoryTime shows ads.
Which is updated more often, Hacktivate or MemoryTime?
Hacktivate ships an update weekly, and MemoryTime every 3 weeks. Most recently, Hacktivate was updated on November 5, 2026 and MemoryTime on November 9, 2026.

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