quadline vs No.9
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
quadline
Engage your mind with inventive puzzles where you manipulate lines to fit into specific slots. Explore over 175 unique levels utilizing a variety of mechanics without time pressure. Enjoy a clean, minimalistic design with intuitive controls and built-in solutions.
- Line manipulation puzzles
- 175+ unique levels
- No timers or pressure
- Intuitive one-tap controls
- Minimalistic design
- Built-in solutions
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Move lines through the cells to put them in specific slots. Rotate, move, push or teleport them and use other game tools to solve fun puzzles. • New unique puzzle mechanics with high variety and complexity • 175+ individually designed levels based on 10 core mechanics and their combinations • No timers or pressure: just you and puzzles • Self-explanatory flow that doesn’t need any interruptive tutorials • Minimalistic, clean and simple design • Symmetrical gameplay experience • Light and Dark mode • Colorblind-friendly • One-tap controls • Built-in solutions • Not a single text line :) Enjoy!
No.9
Immerse yourself in a tranquil puzzle experience with evolving geometric forms and a serene soundtrack. Synchronize elements in form and time to achieve deep relaxation and contemplation. This app offers a score-free, ad-free, and data-free environment for peaceful engagement.
- Tranquil puzzly vacuum
- Evolving geometric forms
- Serene, slow-paced rhythm
- Synchronize form and time
- No scores, ads, or IAPs
- Original soundtrack
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No.9 is an attempt to transport you to a tranquil puzzly vacuum, a gallery of geometric forms and figures that evolve in harmony with a serene, slow-paced rhythm, inviting deep relaxation and contemplation. Your journey involves synchronizing diverse elements in both form and time. Consistent with all my projects, this one also features no scores, no advertisements, no in-app purchases, and does not collect any data - just relax. Featuring a wonderful soundtrack created by: Bartłomiej Kołaciak
Screenshots
Verdict
The clearest difference is monetization model: No.9 at free against quadline's paid. No.9 also leads on update cadence (every 6 weeks vs every 10 months) and rating (5.0 vs 4.8). quadline's advantage is ratings volume (69 vs 12) and device support (5 vs 3). On price, review sentiment, ads and in-app purchases 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
quadline costs $1.99 and No.9 $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
No.9 holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: quadline has 69 ratings behind it against 12, so its average is the more settled of the two. Written reviews complicate that: 95% of quadline's written reviews are positive against 93% of No.9's, so the app with the better star average is not the one people write more warmly about.
quadline ships an update every 10 months, No.9 every 6 weeks. The most recent releases landed on September 17, 2026 and September 23, 2026 respectively.
| Parameter | quadline | No.9 |
|---|---|---|
| Price | $1.99 | $1.99 |
| Rating | 4.8 (69 ratings) | 5.0 (12 ratings) — better |
| Positive reviews | 95.0% of reviews — better | 92.6% of reviews |
| Number of ratings | 69 — better | 12 |
| Update frequency | Every 10 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod, Mac, Apple TV — better | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 56 MB | 175 MB |
| Age rating | 4+ | 4+ |
| Developer | Kovalov Ivan | Maciej Targoni |
Customer experience
quadline
No.9
In-app purchases
quadline
No in-app purchases
No.9
No in-app purchases
