Comparison

Memo vs Hacktivate

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 daily 5-minute brain exercises designed to enhance memory, focus, and logic. This app offers a variety of cognitive games and mindfulness sessions grounded in neurobiology research. Track your progress and compete with others on a global leaderboard.

Highlights
  • 5-minute daily brain fitness workouts
  • 8 cognitive brain training games
  • Mindfulness sessions
  • Sleep tracker with Apple Health sync
  • Progress tracking charts
  • Global leaderboard
  • Neurobiology-based exercises
Features
Read full description

Daily fitness for your brain — grounded in neurobiology research! Memo shows how short, 5-minute daily practices develop your brain's capacity across working memory, mental math, Sudoku, 2D & 3D geometry, and selective attention. Memo works in two complementary directions — active Brain Training and restorative Mindfulness sessions — giving you a clean, intuitive interface to track your cognitive progress over time, plus an atmosphere of friendly competition on the Global Leaderboard. Why Choose Memo? Grounded in Neurobiology & Cognitive Science Every exercise in Memo is built on established neurocognitive research — from visuospatial working memory and Stroop inhibitory control to mental rotation, deductive reasoning, and paced autonomic breathing. Short, consistent 5-minute daily workouts stimulate cognitive agility without overwhelm. 6-Step Daily Brain Challenge Start your day with a curated 5-minute brain fitness workout combining word recall, arithmetic, visual equations, angle geometry, and 3D spatial cube counting. Complete the Daily Challenge to build your calendar streak and compare streaks on the Leaderboard. Direction 1 — 8 Cognitive Brain Training Games: - Mental Math & Visual Equations (Level 1 & Level 2) - Master rapid arithmetic, number bonds, multi-step chains, and visual algebraic icon puzzles. - Geometry / GeoLogic (Level 1 & Level 2) - Solve interactive 2D triangle and angle-chaser puzzles plus 3D orthographic cube projections with step-by-step hints. - Sudoku (6x6 & 9x9) - Train deductive logic with fast 2x3 boards or classic 3x3 number grids. - Chimp Test - Challenge your working memory and spatial recall inspired by the famous primate cognition benchmark. - Dots Link - Connect matching color pairs across the grid with smooth continuous paths without crossing lines. - Brain Speed - Test and improve your visual reaction time, inhibitory control, and decision speed. - Mind Flip - Sharpen selective attention, spatial updating, and cognitive flexibility. - Word Memory - Strengthen short-term verbal recall by memorizing word lists under time pressure. Direction 2 — Mindfulness Sessions, Sleep Tracker & Apple Health Peak cognitive fitness goes hand in hand with mental recovery. Use guided Breathing sessions (4-4-4 Box Breathing and 4-7-8 Relaxation), the Do Nothing stillness timer, and the Activity & Sleep Tracker with optional Apple Health synchronization to log Mindful Minutes and Sleep Analysis (including Awake and Asleep stages). Convenient Progress Tracking & Friendly Competition - Intuitive Progress Charts - Easily track your daily growth in a clean visual UI comparing your current scores, speed, and accuracy against your personal First Try baseline. - Friendly Competition on the Global Leaderboard - Enjoy a welcoming, motivating atmosphere of friendly competition across Daily, Weekly, and All-Time rankings for every game and difficulty level. Key Features at a Glance: - Short 5-minute daily brain fitness workouts grounded in neurobiology - Dual-direction system: 8 Brain Training games + Mindfulness & Sleep recovery - Apple Health integration for Sleep Analysis and Mindful Minutes - Clean, intuitive UI for visual progress tracking against your personal baseline - Global Leaderboard fostering friendly daily competition and streak sharing - Available in 8 languages Download Memo now and start your first 5-minute brain fitness workout! -- https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Hacktivate

Engage in cybersecurity challenges with 240 real-world hacking technique missions. Progress through a global map, learning encryption, steganography, and more. Designed for educational use, it offers scalable difficulty and comprehensive tutorials.

Highlights
  • 240 graded cybersecurity missions
  • Real-world hacking techniques
  • Global progression map
  • Hacker's Toolbox (hashing, encryption, XOR)
  • Unix terminals and web browsers
  • Scalable difficulty
  • Cross-platform 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. Hacktivate: Education Edition is the same as the regular Hacktivate app, except it's paid up front so that schools and colleges can use it. - 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. 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

Screenshots

Memo4 screens
Hacktivate4 screens

Verdict

The call

The clearest difference is price: Memo at Free against Hacktivate's $19.99. Memo also leads on update cadence (every 3 days vs every 9 days) and ratings volume (3 vs 1). Hacktivate's advantage is in-app purchases (none vs 10) and device support (3 vs 1). On rating, review sentiment and 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; Hacktivate costs $19.99 up front. Memo sells 10 in-app purchases, starting at $2.99 per 7 days. Hacktivate asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Memo against 5.0 for Hacktivate. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Memo ships an update every 3 days, Hacktivate every 9 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard7 real differences · 3 level
Memo versus Hacktivate: the parameters behind the verdict, then further details
ParameterMemoHacktivate
PriceFree — better$19.99
Rating5.0 (3 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings3 — better1
Update frequencyEvery 3 days — betterEvery 9 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhoneiPhone, iPad, Mac — better
Requires iOS16.4 — better26.0
Further details — not scored
Size59 MB184 MB
Age rating4+4+
DeveloperSiarhei KellerHudson Heavy Industries

Customer experience

Memo

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Hacktivate

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

10 purchases

Memo

Subscriptions9
  • Memo Premium Weekly$2.997 Days
  • Memo Premium Weekly$3.997 Days
  • Memo Premium +7d Free7 Days trial$4.991 Month
Show 6 more
  • Memo Premium +30d Free1 Month trial$4.991 Month
  • Memo Premium Monthly$6.991 Month
  • Memo Premium Annual3 Days trial$29.991 Year
  • Memo Premium +7d Free7 Days trial$29.991 Year
  • Memo Premium +30d Free1 Month trial$29.991 Year
  • Memo Premium +30d Free1 Month trial$79.991 Year
One-time1
  • Memo Premium Lifetime$39.99
None

Hacktivate

No in-app purchases

Questions

Is Memo free?
Memo is free to download, with in-app purchases available.
Is Hacktivate free?
Hacktivate costs $19.99, with no in-app purchases.
Which has better reviews, Memo or Hacktivate?
Memo and Hacktivate are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.
Do Memo or Hacktivate have ads?
Neither Memo nor Hacktivate shows ads.
Which is updated more often, Memo or Hacktivate?
Memo ships an update every 3 days, and Hacktivate every 9 days. Most recently, Memo was updated on November 3, 2026 and Hacktivate on October 30, 2026.

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