メルカリ新着アラート

What it can reach

Specific sites only: 3 match patterns.

• https://jp.mercari.com/*
• https://api.mercari.jp/*
• https://api.gumroad.com/*

• See the address and title of every tab you have open tabs
• Run its own code on the pages it can access scripting
• Schedule work to run later alarms

The full permission history for this extension →

The publisher

ryou publishes 6 listings we track, 35 users between them.

1. SUUMO物件比較ツール ryou · Productivity · Tools · published 2026-06-01 8 users
2. Google フォト一括削除 ryou · Productivity · Tools · published 2026-05-30 5 users
3. 国産信頼度チェッカー — Amazonの出品者が日本の会社か確認 ryou · Lifestyle · Shopping · published 2026-08-18 4 users (last published figure)

Like this one

Listings the catalog judges closest in what they say they do.

1. MercariAlert — New Listing Notifier for Mercari Describes nearly the same job, smaller audience 7 users
2. PoshAlert — Poshmark New Listing Notifier Describes nearly the same job, smaller audience 6 users
3. VintAlert Pro - Instant Monitor Describes nearly the same job, smaller audience 49 users
4. Allegro Search Watcher Describes nearly the same job, smaller audience 3 users
5. EtsyAlert — New Listing Notifier Describes nearly the same job, smaller audience 3 users (last published figure)

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.