# Otofun Forum vs Kolin

The clearest difference is in-app purchases: Kolin at none against Otofun Forum's 1. Kolin also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 2 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Otofun Forum sells 1 one-off in-app purchase. Kolin asks for nothing beyond the download.

Otofun Forum ships an update every 2 months, Kolin every 2 weeks. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Otofun Forum | Kolin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (20 ratings)](https://appshunter.io/ios/app/otofun-forum/id1316469937/reviews)** | — |
| Number of ratings | **20** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 23 MB | 110 MB |
| Requires iOS | 13.0 | **12.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [TRUONG GIANG VU](https://appshunter.io/developer/1269155622) | [ICEO TECHNOLOGY JOINT STOCK COMPANY](https://appshunter.io/developer/1449105284) |

## What reviewers say

### Otofun Forum

[App page](https://appshunter.io/ios/app/otofun-forum/id1316469937)

This app is a community forum for car enthusiasts in Vietnam. It allows users to create posts, comment, send private messages, and manage their interactions. It also offers features like viewing history, notifications for quotes, and optimized display for larger screens.

**Highlights:** Create threads and comments, Private messaging and user blocking, View browsing history, Notifications for quotes, Optimized for iPhone Plus and iPad, Automatic theme switching, 3D Touch for previewing content

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bỏ quảng cáo | $4.99 | one-time |


### Kolin

[App page](https://appshunter.io/ios/app/kolin/id6738643759)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Otofun Forum free?

Otofun Forum is free to download, with in-app purchases available.

### Is Kolin free?

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

### Do Otofun Forum or Kolin have ads?

Otofun Forum shows ads; Kolin does not.

### Which is updated more often, Otofun Forum or Kolin?

Otofun Forum ships an update every 2 months, and Kolin every 2 weeks. Most recently, Otofun Forum was updated on October 25, 2026 and Kolin on October 27, 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.*