# K2Stone vs サンキューマート（THANKYOUMART）

The clearest difference is device support: K2Stone at 3 against サンキューマート（THANKYOUMART）'s 1. K2Stone also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, 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.

K2Stone ships an update every 4 weeks, サンキューマート（THANKYOUMART） every 3 weeks. Both last shipped on October 30, 2026.

## The numbers

| Metric | K2Stone | サンキューマート（THANKYOUMART） |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 9.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 36 MB | 25 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [fei chang](https://appshunter.io/developer/1797916026) | [エルソニック株式会社](https://appshunter.io/developer/1832636204) |

## What reviewers say

### K2Stone

[App page](https://appshunter.io/ios/app/k2stone/id6742342964)

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

**In-app purchases:** none


### サンキューマート（THANKYOUMART）

[App page](https://appshunter.io/ios/app/thankyoumart/id6749879050)

This app connects you to a popular shop offering cute character goods and exclusive merchandise, all at a fixed low price. It combines your membership card for physical stores with online shopping features, allowing you to earn points and receive special coupons.

**Highlights:** Unified membership card for stores and online, Earn points on purchases, Receive exclusive member coupons, Save favorite items, View purchase history, Find nearby stores

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

**In-app purchases:** none


## Frequently asked questions

### Is K2Stone free?

K2Stone is free to download, with no in-app purchases.

### Is サンキューマート（THANKYOUMART） free?

サンキューマート（THANKYOUMART） is free to download, with no in-app purchases.

### Do K2Stone or サンキューマート（THANKYOUMART） have ads?

Neither K2Stone nor サンキューマート（THANKYOUMART） shows ads.

### Which is updated more often, K2Stone or サンキューマート（THANKYOUMART）?

K2Stone ships an update every 4 weeks, and サンキューマート（THANKYOUMART） every 3 weeks. Most recently, K2Stone was updated on October 30, 2026 and サンキューマート（THANKYOUMART） on October 30, 2026.

---

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