Power One vs Memory Challenge
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Power One
This game challenges your mental agility and speed by presenting you with four-digit numbers. You must quickly add one to each digit and input the result before the one-minute timer runs out. Compete for high scores and compare your progress on the leaderboard.
- Develops motility and speed of thinking
- Add one to each digit of a four-digit number
- Score points for correct answers
- Lose points for incorrect answers
- One-minute countdown timer
- Leaderboard for high scores
- Invite friends functionality
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The game develops motility and speed of thinking. In the beginning of the game you will see four-digit number. Add one to each digit of that number and enter result. For example: if the number 0296 appeared, so you need to enter 1307. 0 -> 1 2 -> 3 9 -> 0 6 -> 7 If the number is correct – you get 1 point. If not – lose 1 point. After the answer was entered, the next number will appear and so on, till 1-minute countdown finish. Your task to get as many points as possible. Your records will be displayed at the Leaderboard as well as your opponent’s records. Inviting friends will be possible in particular.
Memory Challenge
This game challenges your attention, visual perception, and reaction speed. Tap numbers in ascending order on a 5x5 grid to test your memory and quickness. It's a fun daily brain exercise.
- Schulte Table game
- Trains attention and visual perception
- Improves memory and reaction speed
- Daily brain exercise
- Tap numbers 1 to 50 in order
- 5x5 grid gameplay
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Memory Challenge is an interesting Schulte Table game that helps to train attention, visual perception, brain memory and speed reading. Exercise your brain, concentration and reaction every day in an interesting way. Do you have a good memory? Are you good enough at reaction? Just download and start your memory challenge now! HOW TO PLAY ► We offer a table of size 5x5 with randomly distributed numbers. ► Use your finger to quickly tap from 1 to 50 in order. ► Just see how fast you react. Ha ha… Exercise by playing this game every day. You can really activate your brain, improve your memory and speed reading.
Screenshots
Verdict
The clearest difference is price: Memory Challenge at Free against Power One's $0.29. Memory Challenge also leads on update cadence (monthly vs every 30 months) and ratings volume (6 vs 2). Power One's advantage is ads (none vs shown). On rating, 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
Memory Challenge is free to download; Power One costs $0.29 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Power One against 5.0 for Memory Challenge. Both are backed by a comparable volume of ratings — 2 and 6 respectively.
Power One ships an update every 30 months, Memory Challenge monthly. Both last shipped on November 3, 2026.
| Parameter | Power One | Memory Challenge |
|---|---|---|
| Price | $0.29 | Free — better |
| Rating | 5.0 (2 ratings) | 5.0 (6 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 2 | 6 — better |
| Update frequency | Every 30 months | Monthly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | Ad-supported — better |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 26.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 150 MB |
| Age rating | 4+ | 4+ |
| Developer | Yuri Goncharov | ASTER PLAY |
Customer experience
Power One
Memory Challenge
In-app purchases
Power One
No in-app purchases
Memory Challenge
No in-app purchases
