# TUNAGチャット vs 建率Pro

The clearest difference is ads: TUNAGチャット at none against 建率Pro's shown. 建率Pro's advantage is update cadence (weekly vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

TUNAGチャット ships an update every 3 weeks, 建率Pro weekly. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | TUNAGチャット | 建率Pro |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 87 MB | 43 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [stmn, inc.](https://appshunter.io/developer/1282324270) | [NORIHISA KURATA](https://appshunter.io/developer/1896556287) |

## What reviewers say

### TUNAGチャット

[App page](https://appshunter.io/ios/app/tunag/id6670598681)

This app facilitates seamless information sharing among company or group members, separating work and personal communication. It offers channels, direct messages, voice and video calls with screen sharing, and file sharing capabilities.

**Highlights:** Public and private channels, Direct messaging, Voice and screen sharing calls, Group calls, File sharing (photos, videos, PDFs), Push notifications

**In-app purchases:** none


### 建率Pro

[App page](https://appshunter.io/ios/app/pro/id6768276674)

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

**In-app purchases:** none


## Frequently asked questions

### Is TUNAGチャット free?

TUNAGチャット is free to download, with no in-app purchases.

### Is 建率Pro free?

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

### Do TUNAGチャット or 建率Pro have ads?

建率Pro shows ads; TUNAGチャット does not.

### Which is updated more often, TUNAGチャット or 建率Pro?

TUNAGチャット ships an update every 3 weeks, and 建率Pro weekly. Most recently, TUNAGチャット was updated on October 8, 2026 and 建率Pro on October 4, 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.*