Euler Sudoku vs Piano Sight Reader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Euler Sudoku
Engage your mind with a classic number puzzle game. Solve logic grids to earn coins, unwind, and experience the satisfaction of numerical challenges. It's a relaxing yet stimulating way to pass the time.
- Number placement puzzles
- Coin rewards for completion
- Relaxing gameplay
- Challenging levels
- Enjoyable number interaction
Read full descriptionHide full description
Euler Sudoku is a simple number place game. Complete each level to earn more coins, relax and challenge yourself, enjoy the happiness of playing with the numbers.
Piano Sight Reader
Read full descriptionHide full description
Practice sight reading for the piano from anywhere. Select the note range you want to practice and monitor your progress with the statistics.
Screenshots
Verdict
The clearest difference is update cadence: Piano Sight Reader at every 2 days against Euler Sudoku's weekly. 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Euler Sudoku ships an update weekly, Piano Sight Reader every 2 days. The most recent releases landed on October 12, 2026 and October 7, 2026 respectively.
| Parameter | Euler Sudoku | Piano Sight Reader |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (5 ratings) — better | — |
| Number of ratings | 5 — better | — |
| Update frequency | Weekly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 90 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | 柏林 魏 | Alva Rydberg |
In-app purchases
Euler Sudoku
No in-app purchases
Piano Sight Reader
No in-app purchases
Questions
Is Euler Sudoku free?
Is Piano Sight Reader free?
Do Euler Sudoku or Piano Sight Reader have ads?
Which is updated more often, Euler Sudoku or Piano Sight Reader?
Other comparisons
