# S vs 아임파인 닥터

The clearest difference is update cadence: 아임파인 닥터 at every 3 weeks against S's every 2 months. S's advantage is iOS requirement (8.0 vs 15.6). 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.

S ships an update every 2 months, 아임파인 닥터 every 3 weeks. The most recent releases landed on September 8, 2026 and August 31, 2026 respectively.

## The numbers

| Metric | S | 아임파인 닥터 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 5 MB | 47 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 12+ |
| Developer | [Guangyun lOT Technology (Guangzhou) Co., Ltd.](https://appshunter.io/developer/1167915182) | [CareSquare Inc.](https://appshunter.io/developer/1496893573) |

## What reviewers say

### S

[App page](https://appshunter.io/ios/app/s-modo/id1167915183)

**Features:** macOS Compatibility

**In-app purchases:** none


### 아임파인 닥터

[App page](https://appshunter.io/ios/app/id1614085488)

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

**In-app purchases:** none


## Frequently asked questions

### Is S free?

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

### Is 아임파인 닥터 free?

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

### Do S or 아임파인 닥터 have ads?

Neither S nor 아임파인 닥터 shows ads.

### Which is updated more often, S or 아임파인 닥터?

S ships an update every 2 months, and 아임파인 닥터 every 3 weeks. Most recently, S was updated on September 8, 2026 and 아임파인 닥터 on August 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*