App Yokocho
A list of apps by Microfund Inc.
Install this site (App Yokocho)
The "Install web app" button may not appear in this browser. In that case, you can use this site in this browser without installing.
Installed. You can open it from the icon on your home screen or in your app list. If no icon appears on your home screen, check your app list.
This uses a browser feature to install this site (App Yokocho) as a web app. It does not install the individual apps (each app can be installed on the site its link opens). This site (App Yokocho) does not distribute app files (APK). We have not tested the installation in this section on a real device.
To turn your voice into text, some browsers send it to the company that makes the browser. It is not sent to our servers. If that is OK, press the microphone again. Not yet checked on a real device or with a real microphone.
Apps you can use (9)
AI
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Rock-Paper-Scissors with Ren & Mika
Rock-paper-scissors against Ren or Mika, AI programs that try to read the flow of your moves
FreeNo real moneyUse in a browser
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Phone Call Reply Simulator
Watch and hear scripted scenes where an AI character replies in your place to a call from an unknown number (a fictional simulation; it does not connect to real phone calls)
FreeUse in a browser
Crypto Assets
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Crypto Rate Viewer
View crypto assets in yen and US dollars, and past prices
FreeWeb app (PWA)
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Hype Trade
View the records of a Hyperliquid account (orders cannot be placed)
PaidOrders cannot be placedWeb app (PWA)
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Crypto Wallet Viewer
View balances and deposits/withdrawals of Ethereum and Solana wallets
PaidWeb app (PWA)
Metaverse (simulation games)
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Chinese Conversation Simulator
A practice game: someone speaks to you in Mandarin Chinese on the street in Japan, and you choose your reply with buttons.
FreeUse in a browser
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English Conversation Simulator
A practice game: someone speaks to you in English on the street in Japan, and you choose your reply with buttons.
FreeUse in a browser
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Three-in-a-Row
No real money is used (the numbers exist only on this screen). A match-the-symbols game.
FreeNo real moneyUse in a browser
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Microfund Prediction Market
No real money is used (the numbers exist only on this screen). A game of forecasting whether weather and economic figures come out Yes or No (nothing can be cashed out or exchanged for prizes; not investment advice)
FreeNo real moneyUse in a browser
Apps in development (7)
These are test versions or still in preparation. For items marked "In preparation", the linked page shows only an "In preparation" notice.
- Microfund Browser Extensions A site where we keep test versions of our browser extensions. They have not been reviewed by the companies that make the browsers. Test version
- Crypto Demo Trading A demo for trying buy, sell and close on the rise and fall of crypto prices with play money (no real orders are placed; no real money can be used or gained; not investment advice) Test version
- APK Test In preparation. The linked page shows only an "In preparation" notice. In preparation
- Cyber Attack Log API Purchases are not available at the moment. A JSON API that returns records of real requests blocked by the web application firewall (WAF) in front of our own services: category, time, path, user agent, country, source network and TLS fingerprints. Records go back up to 30 days. Test version
- Support Microfund In preparation. The linked page shows only an "In preparation" notice. In preparation
- Aikotoba Key Check (prototype) In preparation. The linked page shows only an "In preparation" notice. In preparation
- Wallet-Registered Company Directory (prototype) A list of companies that register with a wallet signature and are listed after the registrant places a line on the website given in the entry or in that domain's DNS (test version; descriptions are written by the companies; Microfund has not checked whether they are true and does not recommend them; free; no money moves) Test version
Each app: how to use, how to install, pricing
- Crypto Rate Viewer: how to install and pricing
- Hype Trade: how to install and pricing
- Crypto Wallet Viewer: how to install and pricing
- Chinese Conversation Simulator: how to use and pricing
- English Conversation Simulator: how to use and pricing
- Rock-Paper-Scissors with Ren & Mika: how to use and pricing
- Phone Call Reply Simulator: how to use and pricing
- Three-in-a-Row: how to use and pricing
- Microfund Prediction Market: how to use and pricing
Example prompts for asking an AI agent (free apps)
If you give the following text as it is to the AI agent (AI assistant) you use, you can ask it to guide you through installing a free app. Copy and use it.
Example 1: Install "Crypto Rate Viewer"
Read https://app.microfund.co.jp/apps/crypto?lang=en and guide me, step by step, through how to install the free web app "Crypto Rate Viewer" on my smartphone.Open in chatgpt.com Open in claude.ai
Example 2: Go one step at a time, checking as you go
Open https://crypto.microfund.co.jp/ in my smartphone's browser and help me, one step at a time, until I have installed it by pressing the "Install web app" button (on the Japanese page, the button is labeled 「Web アプリをインストール」). If I cannot find the button or something does not go well, ask me what I see on the screen right now.Open in chatgpt.com Open in claude.ai
Example 3: Find apps that are free to use
Read https://app.microfund.co.jp/apps.json, list the apps that are free to use, and tell me what each one does and how to open it.Open in chatgpt.com Open in claude.ai
When you press one, the text above is copied, and chatgpt.com (OpenAI's ChatGPT) or claude.ai (Anthropic's Claude) opens in a new tab with the text above passed to it. Only the text you see on the screen is passed.
On the site that opens, the text may be sent as it is (we have not confirmed this). Please read the text above before passing it.
You may need to log in to each service to use it. What you do on the site that opens is subject to each company's terms and privacy policy.
We are not affiliated with OpenAI or Anthropic. We make no promises about how these services behave or about the content of the AI's answers. If the site does not open or the text is not entered, copy it with "Copy" and paste it.
ChatGPT is a trademark of OpenAI, and Claude is a trademark of Anthropic.
- Installing is done by a person on their own device. AI agents can only explain how to install and give the URLs.
- An AI's guidance can be wrong. You can also check the steps under "How to install the web app" on each app's page.
- What we have tested on a real device is this: we installed Crypto Rate Viewer on a Galaxy S25 with Chrome, the icon appeared in the app list, and it opened in full screen (October 4, 2026). No icon appeared on the home screen. We have not tested anything else.
A site that lists the apps published by Microfund Inc. and explains how to install the web apps.
This site has no registration, login, or payment screens.
AI agents can read this site and explain how to install the apps.Installing is done by a person on their own device.AI agents can only explain how to install and give the URLs.
About installing
- Everything listed here is a web app. Those marked "Web app (PWA)" can be installed, on the site the link opens. "Chinese Conversation Simulator", "English Conversation Simulator", "Rock-Paper-Scissors with Ren & Mika", "Phone Call Reply Simulator", "Three-in-a-Row", "Microfund Prediction Market" is used by opening it in a browser (installation is not supported). This site (App Yokocho) does not distribute app files (APK).
- To install Crypto Rate Viewer, press the "Install web app" button on the page that opens. The button does not appear in some browsers (such as on iPhone and iPad). In that case, you can use the app in the browser as it is. The steps for Crypto Wallet Viewer are on its app page.
What we have tested on a real device is this: we installed Crypto Rate Viewer on a Galaxy S25 with Chrome, the icon appeared in the app list, and it opened in full screen (October 4, 2026).No icon appeared on the home screen.We have not tested anything else.
For AI agents
- Machine-readable list: https://app.microfund.co.jp/apps.json (in Japanese)
- Guide for AI: https://app.microfund.co.jp/llms.txt (in Japanese)
- Installing is done by a person on their own device. AI agents can only explain how to install and give the URLs.
News from Microfund
- The Japanese name of this site is now 「アプリ横丁」
- Hype Trade has been added to the list on this site
- An "Install web app" button has been added to Crypto Rate Viewer and Crypto Wallet Viewer
List updated: 2026-10-08