# YS YEOSIN vs flatcode

YS YEOSIN and flatcode are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

YS YEOSIN ships an update every 2 months, flatcode every 3 months. The most recent releases landed on October 5, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | YS YEOSIN | flatcode |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | — | Free |
| Size | 73 MB | 71 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SEUNGGYU GIM](https://appshunter.io/developer/1705805900) | [OJ Inc.](https://appshunter.io/developer/1750845115) |

## What reviewers say

### YS YEOSIN

[App page](https://appshunter.io/ios/app/ys-yeosin/id6464332245)

**Features:** Vision Pro support

**In-app purchases:** none


### flatcode

[App page](https://appshunter.io/ios/app/flatcode/id6557055806)

Access exclusive coupons, discounts, and special offers optimized for mobile. Manage your orders, shipping information, and shopping cart with ease. Stay updated with store notifications and connect via social media.

**Highlights:** Exclusive coupons and discounts, Automatic login, Order tracking, Shopping cart management, Shipping info management, Store notifications, Social media access

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is YS YEOSIN free?

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

### Is flatcode free?

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

### Do YS YEOSIN or flatcode have ads?

Neither YS YEOSIN nor flatcode shows ads.

### Which is updated more often, YS YEOSIN or flatcode?

YS YEOSIN ships an update every 2 months, and flatcode every 3 months. Most recently, YS YEOSIN was updated on October 5, 2026 and flatcode on September 22, 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.*