# quadline vs No.9

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.

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 28, 2026 respectively.

## The numbers

| Metric | quadline | No.9 |
| --- | --- | --- |
| Price | $1.99 | $1.99 |
| Rating | [4.8 (69 ratings)](https://appshunter.io/ios/app/quadline/id1575569233/reviews) | **[5.0 (12 ratings)](https://appshunter.io/ios/app/no9/id1658844106/reviews)** |
| Number of ratings | **69** | 12 |
| Positive reviews | **95.0% of reviews** | 92.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 6 weeks** |
| Monetization | Paid | **Free** |
| Size | 56 MB | 175 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod, Mac, Apple TV** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kovalov Ivan](https://appshunter.io/developer/1184935723) | [Maciej Targoni](https://appshunter.io/developer/495165602) |

## What reviewers say

### quadline

[App page](https://appshunter.io/ios/app/quadline/id1575569233)

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.

**Highlights:** Line manipulation puzzles, 175+ unique levels, No timers or pressure, Intuitive one-tap controls, Minimalistic design, Built-in solutions

**Features:** Vision Pro support

**In-app purchases:** none


### No.9

[App page](https://appshunter.io/ios/app/no9/id1658844106)

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.

**Highlights:** Tranquil puzzly vacuum, Evolving geometric forms, Serene, slow-paced rhythm, Synchronize form and time, No scores, ads, or IAPs, Original soundtrack

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is quadline free?

quadline costs $1.99, with no in-app purchases.

### Is No.9 free?

No.9 costs $1.99, with no in-app purchases.

### Which has better reviews, quadline or No.9?

No.9 is rated higher. quadline averages 4.8 out of 5 from 69 ratings, while No.9 averages 5.0 from 12 ratings.

### Do quadline or No.9 have ads?

Neither quadline nor No.9 shows ads.

### Which is updated more often, quadline or No.9?

quadline ships an update every 10 months, and No.9 every 6 weeks. Most recently, quadline was updated on September 17, 2026 and No.9 on September 28, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*