金利ナビ-定期預金・普通預金・外貨預金の金利ランキング

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10+
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About this app

This app allows you to compare interest rates for savings accounts, time deposits, and foreign currency deposits across different banks.

Many comparison websites only display large figures like "up to 0.8%", but in reality, these rates almost always come with conditions such as requiring salary deposits or linking to a securities account. If you don't meet the conditions, that figure is irrelevant to you.

This app displays interest rates separately for "unconditional rates available to everyone," "conditional rates," and "combined rates." You can select the conditions you can actually meet, and the app will re-rank only those rates that meet those conditions. Even if you don't meet the conditions, the app provides tags and detailed explanations of what conditions you need to meet.

[Main Features]

• Interest Rate Ranking: Displays the top 10 banks by interest rate across three categories: savings accounts, time deposits, and foreign currency deposits, and by deposit period. You can compare rates with and without conditions separately.

Government bond interest rate comparisons and some top-ranking rates are paid features.

• Interest Rate Trends (Premium Feature): You can view the movement of interest rates for each bank in a graph.

* **Update History**
You can view a list of recent interest rate fluctuations.

The history for the past month is a paid feature only.

* **My Bank**
By registering the banks where you have accounts, you can manage the maturity dates of your time deposits and receive notifications before maturity. You can also check the estimated interest you will receive in the future.

Registering multiple banks or closed accounts is a paid feature only.

* **Notifications**
We will deliver official announcements and campaign previews before interest rates actually increase.

The latest notifications and the history for the past month are premium features only.

* **Net Interest Calculation**
By entering the deposit amount, period, and interest rate, the system will calculate the net interest amount after deducting 20.315% tax.

* **Ranking Condition Filter**
By selecting what you can actually do in the settings tab, such as changing your salary deposit account or linking your securities account, you can exclude interest rates that do not meet the criteria from the ranking.

* **Push Notifications**
You will be notified on the same day that interest rates are raised or campaigns begin. We will inform you of facts, such as, "XX Bank has raised its ordinary deposit interest rate from 0.60% to 0.75%."

[Regarding Fees]
Some functions, such as interest rate rankings, condition filters, and net interest calculation, are available for free. Push notifications, My Bank (partially free), announcements (partially free), and viewing interest rate trends are available with the Premium Plan (first 14 days free).

[Notes on Use]
While the interest rates listed are updated based on official announcements from each financial institution, please be sure to check the latest conditions and accurate figures on each bank's official website. Foreign currency deposits involve exchange rate fluctuation risks and exchange fees, and there is a possibility of principal loss in yen equivalent. This app does not endorse any specific financial institution and is intended to provide interest rate information.
Ranking bank deposit interest rates. Easily find the interest rate that meets your criteria, and receive notifications when interest rates change. Manage your interest payments and time deposit maturities. Calculate your net interest income.
Updated on
Oct 16, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection

What’s new

【国債・MRFタブ】
・国債の最新の利回り(1年・2年・3年・5年・10年)を、前日比・前月比つきで表示
・利率の推移を折れ線グラフに。1年国債・10年国債を追加し、タップでその月の利率を表示
・MRFの利回りランキングに三菱UFJモルガン・スタンレー証券を追加(毎週月曜に更新)

【お知らせ>金利比較】
・条件なし/条件ありを切り替えて表示
・期間ごとに、預金・国債・MRFのうち最も高い商品と利回りをグラフ上に表示

【My口座】
・無料プランでも、銀行1行に加えて国債・MRFをそれぞれ1件まで登録可能に
・国債は「既発債・個人向け国債・新窓販国債」から選んで登録

【その他】
・不具合の修正と表示の改善
Content rating
Everyone
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App support

About the developer
RIVERPLATE STUDIO
contact@riverplatestudio.com
10-15-301, SHINSENCHO SHIBUYA-KU, 東京都 150-0045 Japan
+81 80-4372-7755