# ThreeNine vs Fly! Linear

The clearest difference is rating: Fly! Linear at 5.0 against ThreeNine's 4.0. Fly! Linear also leads on update cadence (every 2 months vs every 5 months) and iOS requirement (11.0 vs 15.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Fly! Linear holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

ThreeNine ships an update every 5 months, Fly! Linear every 2 months. The most recent releases landed on October 1, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | ThreeNine | Fly! Linear |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/threenine/id490388590/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fly-linear-shinkansen/id6461774014/reviews)** |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Ad-supported | Ad-supported |
| Size | 90 MB | 159 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [有限会社ぴっくる](https://appshunter.io/developer/317768197) | [Ayumi Miyazaki](https://appshunter.io/developer/1699956582) |

## What reviewers say

### ThreeNine

[App page](https://appshunter.io/ios/app/threenine/id490388590)

A fast-paced puzzle game where players must tap numbers when they reach nine. Avoid penalties by only touching the correct digit. Compete in timed modes to achieve high scores.

**Highlights:** Tap numbers when they reach nine, Avoid penalties for incorrect taps, Time Trial mode, Score Trial mode, Simple reflex-based gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


### Fly! Linear

[App page](https://appshunter.io/ios/app/fly-linear-shinkansen/id6461774014)

Experience high-speed train adventures using magnetic propulsion. Tap to jump and align colors, accelerating your train through vibrant urban and mountainous stages. Collect coins to unlock new and special vehicles for an exhilarating casual gaming experience.

**Highlights:** Super-high speed train gameplay, Magnet-powered jumps, Easy tap-to-play controls, Colorful urban and mountain stages, Collect coins for new trains, Unlock special vehicles

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ThreeNine free?

ThreeNine is free to download, with no in-app purchases.

### Is Fly! Linear free?

Fly! Linear is free to download, with no in-app purchases.

### Which has better reviews, ThreeNine or Fly! Linear?

Fly! Linear is rated higher. ThreeNine averages 4.0 out of 5 from 1 ratings, while Fly! Linear averages 5.0 from 1 ratings.

### Do ThreeNine or Fly! Linear have ads?

Both ThreeNine and Fly! Linear show ads.

### Which is updated more often, ThreeNine or Fly! Linear?

ThreeNine ships an update every 5 months, and Fly! Linear every 2 months. Most recently, ThreeNine was updated on October 1, 2026 and Fly! Linear on September 20, 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.*