# second sight vs 同仁堂

The clearest difference is update cadence: second sight at every 6 days against 同仁堂's every 20 months. second sight also leads on iOS requirement (11.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

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

second sight ships an update every 6 days, 同仁堂 every 20 months. The most recent releases landed on September 8, 2026 and February 16, 2026 respectively.

## The numbers

| Metric | second sight | 同仁堂 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 20 months |
| Size | 10 MB | 87 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [TOSCOM CO,.LTD.](https://appshunter.io/developer/1300048479) | [DOJINDO, K.K.](https://appshunter.io/developer/1583118692) |

## What reviewers say

### second sight

[App page](https://appshunter.io/ios/app/second-sight/id1447770269)

**Features:** macOS Compatibility

**In-app purchases:** none


### 同仁堂

[App page](https://appshunter.io/ios/app/id1583118690)

**In-app purchases:** none


## Frequently asked questions

### Is second sight free?

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

### Is 同仁堂 free?

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

### Do second sight or 同仁堂 have ads?

Neither second sight nor 同仁堂 shows ads.

### Which is updated more often, second sight or 同仁堂?

second sight ships an update every 6 days, and 同仁堂 every 20 months. Most recently, second sight was updated on September 8, 2026 and 同仁堂 on February 16, 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.*