# SmartDiscussion vs RITTAI SCAN

The clearest difference is update cadence: RITTAI SCAN at every 6 days against SmartDiscussion's every 2 months. RITTAI SCAN also leads on device support (3 vs 1). SmartDiscussion's advantage is iOS requirement (9.0 vs 15.0). On price, 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.

SmartDiscussion ships an update every 2 months, RITTAI SCAN every 6 days. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SmartDiscussion | RITTAI SCAN |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Size | 31 MB | 297 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kissei Comtec Co., Ltd.](https://appshunter.io/developer/503794772) | [Forgers Inc.](https://appshunter.io/developer/1798071541) |

## What reviewers say

### SmartDiscussion

[App page](https://appshunter.io/ios/app/smartdiscussion/id865007952)

**Features:** macOS Compatibility

**In-app purchases:** none


### RITTAI SCAN

[App page](https://appshunter.io/ios/app/rittai-scan/id6745224477)

**In-app purchases:** none


## Frequently asked questions

### Is SmartDiscussion free?

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

### Is RITTAI SCAN free?

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

### Do SmartDiscussion or RITTAI SCAN have ads?

Neither SmartDiscussion nor RITTAI SCAN shows ads.

### Which is updated more often, SmartDiscussion or RITTAI SCAN?

SmartDiscussion ships an update every 2 months, and RITTAI SCAN every 6 days. Most recently, SmartDiscussion was updated on October 26, 2026 and RITTAI SCAN on October 24, 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.*