Puzzle IO vs Circuital
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Puzzle IO
Experience a modern, fast-paced logic puzzle game based on binary Sudoku. Fill grids with 0s and 1s following specific rules, earn bonuses with a smart point system, and compete globally. Offers endless challenges across six difficulty levels.
- Fill 10x10 grids with 0s and 1s
- Equal 0s and 1s per row/column
- No three identical numbers in a row
- Smart point system with bonuses
- Time-based multipliers for higher scores
- Game Center support and global leaderboards
- Six difficulty levels
- Unlimited unique puzzles
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Addictive Logic Fun! Looking for a fresh take on Sudoku? Puzzle IO brings you a modern, fast-paced, and highly addictive logic puzzle experience! Easy to learn, hard to master! * Fill each 10x10 grid with 0s and 1s * Each row and column must have an equal number of 0s and 1s * No three identical numbers in a row! Think fast, score big! * Smart point system: Earn bonuses by solving grids efficiently! * Time-based multipliers: Solve puzzles quickly for higher scores! * Game Center support: Compete with friends and climb the global leaderboards! Endless Challenges! * Six difficulty levels: Unlock harder modes as you improve! * Unlimited unique puzzles: No two grids are the same! * Clean, modern design: Smooth animations & intuitive controls! Ready to train your brain? Download Puzzle IO - Binary Sudoku now and start playing!
Circuital
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Circuital is a minimalist circuit-routing puzzle. Slide and rotate path pieces to complete the current — every level has exactly one elegant solution waiting for you to find it. • 60 hand-crafted challenges across four difficulty tiers • A fresh Daily Challenge every day • A hint engine for when you're truly stuck • Achievements and stats to track your mastery • Clean, distraction-free design — no ads, no timers, just pure logic Whether you have two minutes or twenty, Circuital rewards careful thinking with the satisfying click of a completed circuit.
Screenshots
Verdict
The clearest difference is ads: Circuital at none against Puzzle IO's shown. Puzzle IO's advantage is update cadence (every 3 weeks vs every 3 months) and iOS requirement (13.0 vs 17.0). On price, 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. Puzzle IO sells 1 one-off in-app purchase and Circuital sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Puzzle IO ships an update every 3 weeks, Circuital every 3 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.
| Parameter | Puzzle IO | Circuital |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (362 ratings) — better | — |
| Positive reviews | 74.3% of reviews | — |
| Number of ratings | 362 — better | — |
| Update frequency | Every 3 weeks — better | Every 3 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 107 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | 99 Up Games | Mario Steenbergen |
Bugs and requests
Puzzle IO
Reported bugs
4 issues- Incorrect error detection on completed rows/columns
- Frequent crashes and bugs
- Game sometimes freezes or becomes unresponsive
- Ads not loading properly, preventing gameplay
Requested features
5 requests- Dark mode option
- Better hint system that explains the logic
- Option to turn off row/column completion notifications
- More challenging puzzle levels
- Ability to create and save custom puzzles
Circuital
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Puzzle IO
- Remove Ads$2.99
Circuital
- Circuital Pro$2.99
