KATAPP vs K2Stone
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KATAPP
Read full descriptionHide full description
機能 - ジュエリー商品のカタログ検索 - 片岡商店のスタッフと交渉できるチャット - 検討リスト
K2Stone
Read full descriptionHide full description
・K2Stone㈱のスタッフと商談ができるチャット ・日本リユーズジュエリーのBtoB向け総合カタログ ・デザイナジュエリー、ブランドジュエリーに関わる全般
Screenshots
Verdict
The clearest difference is update cadence: K2Stone at every 4 weeks against KATAPP's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
KATAPP ships an update every 2 months, K2Stone every 4 weeks. The most recent releases landed on October 2, 2026 and October 3, 2026 respectively.
| Parameter | KATAPP | K2Stone |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 90 MB | 36 MB |
| Age rating | 4+ | 17+ |
| Developer | Kataoka Shoten Co.,Ltd | fei chang |
In-app purchases
KATAPP
No in-app purchases
K2Stone
No in-app purchases
