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Key Takeaways：mottoku brings daily deals from Amazon, Rakuten, and Yahoo! Shopping together in one place, so you can compare prices without hopping between three different sites. This guide covers how the site works, how to spot the deepest discounts, and how to factor in point campaigns to get the real lowest price.

Your daily deal-hunting companion in Japan

Deals from Amazon, Rakuten and Yahoo! — gathered in one place, every day.

Major EC sites · 1.3M+ items

mottoku is a free, daily-updated service that aggregates discounted items and deals from Japan’s major online marketplaces. Filter by discount rate or category and zero in on what’s actually worth buying.

Browse deals on mottoku (free)

What you’ll learn

How mottoku gathers deals from multiple major Japanese EC sites — Amazon, Rakuten, Yahoo! and more — into one free daily feed
How to use discount, category and price filters plus the sale calendar to never miss a buying window
How to think in terms of true lowest price, including point-ecosystem rewards

Amazon Japan, Rakuten Ichiba, Yahoo! Shopping, au PAY Market — online shopping in Japan offers plenty of choice, which also makes it hard to know where and when to buy. Patrolling every site’s sale pages daily isn’t realistic, and deals disappear fast.

This guide introduces mottoku (mottoku.app) — a free service that aggregates deals across Japan’s major EC sites. It’s my own first stop for daily deal-hunting. Below: what it does, how to use it, and how to time your purchases well.

The “where should I buy this?” problem

The same product can differ across marketplaces in price, point rewards and coupon availability. Add the big sale events — Rakuten’s Okaimono Marathon, Yahoo!’s cashback festivals — plus time sales and coupon drops, and the best buying moments are scattered everywhere. Tracking them all is practically impossible.

So most people default to “buy on the usual site, whenever I remember” — and quietly overpay more often than they realize.

The trick isn’t to monitor everything — it’s to have one place where only the high-discount items gather. Skim that one place daily and you’ll rarely miss a good buying window.

What is mottoku? — a deal aggregator for Japan’s major EC sites

mottoku collects discounted items and deals from multiple major EC sites — including Amazon, Rakuten Ichiba, Yahoo! Shopping and au PAY Market — updated daily, with more marketplaces being added. It lists over 1.3 million items (as of July 2026). No registration required — it runs straight from your phone’s browser.

Key features

Filter by discount & price

Sort by discount rate, filter by price range or category — pull only the deals relevant to you out of a huge feed.

Major marketplaces, one view

Amazon, Rakuten Ichiba, Yahoo! Shopping, au PAY Market and more in a single feed — no more hopping between sites.

Sale calendar

Calendar content covering major sale events like the Rakuten Okaimono Marathon, so you can plan when to buy.

Favorites & columns

Save items to favorites (stored in your browser, no account needed) and browse shopping guides by category — home appliances, daily goods and more.

How to use it — 3 steps

Open mottoku — go to mottoku.app. No app, no sign-up.
Filter and browse — sort by discount rate, narrow by category or price range, or search by keyword if you already know what you want.
Confirm on the EC site, then buy — click through to the marketplace, check the latest price and terms, and purchase. Choosing the marketplace within your point ecosystem (Rakuten, PayPay…) makes the deal even better after rewards.

Tips for never missing a buying window

1. One minute a day on the fresh deals

mottoku updates daily. A quick skim during your commute builds a feel for restock timing on daily goods and the rhythm of sales — at a fraction of the time cost of patrolling every marketplace.

2. Check the sale calendar before big events

For multi-shop events like the Rakuten Okaimono Marathon, preparation decides how many points you take home. Use the sale calendar to see when the next one runs and draft your shopping list in advance. Pairs well with this blog’s Rakuten Marathon schedule guide.

3. Decide where to buy with point rewards included

Given the same discount, buying inside the point ecosystem you already use (Rakuten points, PayPay points…) nets you more in real terms. When you find a deal on mottoku, factor in ecosystem rewards before choosing where to buy.

Note: prices, discount rates and stock change constantly. Listings on mottoku reflect the data at crawl time — always confirm the latest price and terms on the marketplace itself before purchasing.

FAQ

Q. Does it cost anything?

A. Completely free, no registration required.

Q. Which EC sites are covered?

A. Major marketplaces including Amazon, Rakuten Ichiba, Yahoo! Shopping and au PAY Market (as of July 2026, with more being added).

Q. Are the prices and discount rates current?

A. Listings reflect data at crawl time. Prices and discounts change, so always confirm the latest on the marketplace before buying.

Q. Do favorites require an account?

A. No. Favorites are stored in your browser, so you can use them without registering.

Check today’s deals on mottoku

Disclosure: mottoku is a sister service run by the same operator as this blog. Features and item counts described are as of the time of writing (July 17, 2026).

To squeeze more out of online shopping in Japan, pair mottoku with these: Amazon Prime and the Amazon Prime Mastercard if you shop mainly on Amazon, the Rakuten Card plus Rakuten Rebates for the Rakuten ecosystem, an everyday high-cashback card like the SMBC card or JCB card, plus the Marriott Bonvoy AMEX for travelers and the AMEX Gold Preferred for point maximizers:

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