Touch the Prime Numbers vs RRLL
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Touch the Prime Numbers
A straightforward game where players tap prime numbers as they appear. It's designed for quick play sessions and introduces users to a list of prime numbers. The game includes Game Center integration for leaderboards.
- Tap prime numbers
- List of prime numbers provided
- Quick gameplay
- Game Center integration
- Simple interface
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Touch a quick prime numbers! "Touch the Prime Numbers" is a simple game! Prime Numbers 2,3,5 7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97 Let's try! Game Center introduction. Respect "Touch the Numbers"!!
RRLL
This game tests dynamic visual acuity by having players tap the correct half of the screen based on visual cues. Aim to beat your high score by accurately responding within a 10-second measurement period. Improve your reaction time and precision with this engaging challenge.
- Dynamic visual acuity measurement
- 10-second testing periods
- High score tracking
- Left/right screen touch controls
- Score-based feedback
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RRLL is a game that measures dynamic visual acuity. When you start the game, the measurement for 10 seconds will start. Let's measure with the aim of updating the high score. R: Touch the right half of the screen. L: Touch the left half of the screen. Good = score + 100 / Miss = score - 100
Screenshots
Verdict
The clearest difference is review sentiment: Touch the Prime Numbers at 78% against RRLL's 0%. Touch the Prime Numbers also leads on rating (4.0 vs 3.0) and ads (none vs shown). On price, ratings volume, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Touch the Prime Numbers holds the better App Store score, 4.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 78% of Touch the Prime Numbers's written reviews are positive against 0% of RRLL's.
Touch the Prime Numbers ships an update every 4 months, RRLL every 10 months. The most recent releases landed on October 11, 2026 and October 17, 2026 respectively.
| Parameter | Touch the Prime Numbers | RRLL |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) — better | 3.0 (1 ratings) |
| Positive reviews | 77.8% of reviews — better | 0.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Every 4 months — better | Every 10 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 7.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 6 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | RUCKYGAMES CO., LTD. | YUSEI MIYOSHI |
Customer experience
Touch the Prime Numbers
RRLL
In-app purchases
Touch the Prime Numbers
No in-app purchases
RRLL
No in-app purchases









