Solid Sudoku vs Perfect Circle
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Solid Sudoku
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A simple Sudoku game. I built it for myself and my family to enjoy together. No excessive ads during gameplay—just a quiet, comfortable space to focus on the puzzle. To support healthy screen habits for kids, the app includes Parent Settings. When you first install the app, a parent can set: - How many rounds can be played - A waiting time between rounds This helps children naturally build the habit of self-control. Your play records are also saved, so you can look back after finishing a game and keep the fun going. [Why Sudoku is great] - Improves logical thinking - Strengthens concentration - Develops problem-solving skills - Trains memory - Enhances number sense Short sessions, deep focus. Enjoy a healthy brain game that the whole family can play together.
Perfect Circle
A minimalist game of precision and rhythm where players tap at the exact moment a dot enters a moving gate. Chain perfect taps to increase your score multiplier and aim for high scores. Unlock new cosmetic items and utilize power-ups to aid your progress.
- One-tap gameplay
- Perfect-streak multiplier
- Unlockable skins
- Power-ups
- Daily challenges
- High score chasing
- Clean design
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One tap. Perfect timing. Pure flow. Perfect Circle is a beautifully minimal game of precision and rhythm. A dot races around the ring — tap the instant it enters the moving gate. Land it dead-center for a PERFECT, then chain perfects to build your streak multiplier and send your score soaring. Simple to learn. Ruthlessly satisfying to master. HOW TO PLAY • Tap when the dot is inside the gate • Hit the center marker for a PERFECT • Chain perfects to grow your multiplier • One miss ends the run — how far can you go? FEATURES • Pure one-tap gameplay with instant restarts • A perfect-streak multiplier that rewards precision • Unlockable skins — stars, diamonds, hearts, rainbow trails and more • Power-ups: Shield, Slow-Mo, and Head Start • Daily challenges with coin rewards • Chase your high score and beat your best • Clean, calming design with juicy feedback No sign-up. No clutter. Just pick up, play, and go for one more run.
Screenshots
Verdict
The clearest difference is in-app purchases: Solid Sudoku at none against Perfect Circle's 7. Solid Sudoku also leads on device support (3 vs 1) and iOS requirement (14.0 vs 17.0). On price, update cadence 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
Both are free to download. Perfect Circle sells 7 one-off in-app purchases. Solid Sudoku asks for nothing beyond the download.
Solid Sudoku ships an update every 3 days, Perfect Circle every 4 days. The most recent releases landed on September 14, 2026 and September 8, 2026 respectively.
| Parameter | Solid Sudoku | Perfect Circle |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 days — better | Every 4 days |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 28 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Sooyeol Jeong | Dominion Labs Inc. |
In-app purchases
Solid Sudoku
No in-app purchases
Perfect Circle
- Handful of Coins$0.99
- Coin Pouch$1.99
- Remove Ads$1.99
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- Starter Bundle$2.99
- Bag of Coins$4.99
- Coin Vault$9.99
- Coins Chest$19.99
Questions
Is Solid Sudoku free?
Is Perfect Circle free?
Do Solid Sudoku or Perfect Circle have ads?
Which is updated more often, Solid Sudoku or Perfect Circle?
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