Comparison

MemTrainer vs Hidden Numbers

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

Head to head
About

MemTrainer

Features
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This game trains your memory by having you recall tiles that have just been displayed. In each round, different tiles will be shown, then flipped face down. You will then need to specify the tiles you saw, using the keypad. You have to do that within a time limit. The keypad will slide away once the time expires. Points will be awarded as follows: - A point will be awarded for each tile matched - Double points will be awarded if you match all tiles in a set - Sometimes tiles will be rotating and upside down when presented, double points will be awarded for each of those that are matched Another round will begin and the cycle repeats until the game period of two minutes is over. You will advance to the next level if you achieve two rounds of exact matches. At every new level: - One additional tile will be displayed - More time will be allowed for keying in the tiles on the keypad - The game period is extended by two additional minutes every time you advance to a new level When the game is over, you will be prompted to select one of the following: - play again - submit score to leader board - show the leader board - quit You may also see the leader board at any time by clicking on the score.

About

Hidden Numbers

Master math and counting with engaging puzzles. This game offers dynamic modes, custom difficulty, and timed or relaxed play. Compete globally and play offline to sharpen your arithmetic skills.

Highlights
  • 7 Dynamic Game Modes
  • Custom Difficulty
  • Timed vs. Relaxed Play
  • Global Leaderboards
  • 100% Offline Play
  • Arithmetic Skill Improvement
Features
Read full description

Master Math & Counting with Hidden Numbers! Elevate your arithmetic skills with Hidden Numbers, the ultimate puzzle experience designed to make learning addictive and fun! Whether you're a student looking to ace your next test or an adult keeping your mind sharp, our puzzles offer the perfect blend of education and entertainment! From rapid-fire calculations to thoughtful problem-solving, Hidden Numbers adapts to your personal learning style. WHY PLAY HIDDEN NUMBERS? • 7 Dynamic Game Modes: From foundational counting to lightning-fast addition and multiplication, there’s a mode for every math goal! • Custom Difficulty: Play your way. Choose Easy to build confidence or Hard to put your brain to the ultimate test. • Timed vs. Relaxed: Race against the clock to prove your speed or turn on a RELAX mode with no timers, no pressure. • Global Leaderboards: Think you’re the best? Submit your score to the TOP 20 global rankings and see how you stack up against math masters worldwide! • 100% Offline Play: No Wi-Fi? No problem. Sharpen your skills on the plane, the bus, or anywhere life takes you. STOP DREADING, START WINNING! Stop looking at numbers as a hurdle and start seeing them as a game! With sleek visuals and intuitive gameplay, mastering math has never been this addictive! Download Hidden Numbers today and claim your spot on the leaderboard!

Screenshots

MemTrainer3 screens
Hidden Numbers4 screens

Verdict

The call

The clearest difference is in-app purchases: MemTrainer at none against Hidden Numbers's 1. Hidden Numbers's advantage is update cadence (every 12 months vs every 57 months). On price, 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

Both are free to download. Hidden Numbers sells 1 one-off in-app purchase. MemTrainer asks for nothing beyond the download.

UpkeepUpdate frequency

MemTrainer ships an update every 57 months, Hidden Numbers every 12 months. The most recent releases landed on September 17, 2026 and September 29, 2026 respectively.

Scorecard2 real differences · 7 level
MemTrainer versus Hidden Numbers: the parameters behind the verdict, then further details
ParameterMemTrainerHidden Numbers
PriceFreeFree
Rating—5.0 (4 ratings) — better
Number of ratings—4 — better
Update frequencyEvery 57 monthsEvery 12 months — better
AdsYesYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS11.0 — better12.0
Further details — not scored
Size8 MB18 MB
Age rating4+4+
DeveloperPOKMichal Sajban

In-app purchases

None

MemTrainer

No in-app purchases

1 purchases

Hidden Numbers

One-time1
  • Full version + no ads!$1.99

Questions

Is MemTrainer free?
MemTrainer is free to download, with no in-app purchases.
Is Hidden Numbers free?
Hidden Numbers is free to download, with in-app purchases available.
Do MemTrainer or Hidden Numbers have ads?
Both MemTrainer and Hidden Numbers show ads.
Which is updated more often, MemTrainer or Hidden Numbers?
MemTrainer ships an update every 57 months, and Hidden Numbers every 12 months. Most recently, MemTrainer was updated on September 17, 2026 and Hidden Numbers on September 29, 2026.

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