Mami Wata TestFlight Beta

Getting Started with the Mami Wata Beta

On iPadOS

Install TestFlight. Apple's official beta app, free on the App Store.
Request access. Select Get Early Access above, then confirm Open when prompted.
Accept the invitation. TestFlight presents Mami Wata with its latest build notes.
Install. Future builds from Maki Okamoto arrive on their own.

Good to know

Limited seats. Public betas hold up to 10,000 testers. When one is full, Notify Me tells you when a seat frees up.
Nothing is charged. In-app purchases run in Apple's sandbox. Your account is never billed.
Builds run 90 days. Each update renews the term and keeps your data.
Leave anytime. Reinstall Mami Wata from the App Store to return to the public release.

About Mami Wata

逆転オセロニアの最新ニュースやまとめなどの関連情報が毎日更新！

攻略速報やとっておきの裏技情報もこのアプリで手に入ります！

【主な機能】

・お気に入り機能で重要な記事の保存が可能

・シェア機能が付いているのでSNSへの投稿もすぐに可能です

・ブログリストが付いているので読みたいサイトのみの表示に切り替えることも可能！

このアプリは逆転オセロニアの非公式アプリです。運営会社とは一切関係ありません。

DeveloperMaki Okamoto

PriceFree

Release Date10/05/2026

Are you the developer? Claim this app

TikTok -Global Video Community

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Questions

How do I join the Mami Wata TestFlight beta on iPadOS?

First, download Apple's official TestFlight app from the App Store on your iPad. Then return to this page and select "Get Early Access" above. Your device will automatically open TestFlight and prompt you to accept the developer's beta invitation. Tap "Accept" and then "Install" to start testing Mami Wata. If it says "This beta is full", tap "Get Slot Alerts" to be told when a slot opens.

Is testing Mami Wata on TestFlight safe and free?

Joining is free, and TestFlight is Apple's official beta testing service. Apple reviews beta builds before they can be shared through a public link, and beta apps run in the same sandbox as App Store apps, so they can't access your data without your permission. Betas can still have bugs. The beta is made by Maki Okamoto.

Do in-app purchases or subscriptions cost real money during TestFlight beta testing?

No. In TestFlight, Apple connects all transactions to its free Sandbox environment. Any in-app purchase, pro feature tier, or subscription inside Mami Wata will display "[Environment: Sandbox]" and costs $0.00. Your Apple Account or credit card will never be billed for purchases made within a TestFlight beta build.

Does the Mami Wata beta support iPad?

Only if Maki Okamoto ships an iPad build. TestFlight shows the supported devices and the minimum iPadOS version for each build, and it won't offer the install if your iPad isn't supported.

What should I do if the Mami Wata TestFlight beta says "This beta is full"?

A TestFlight beta can have up to 10,000 external testers, and developers can set a lower limit. Spots open up again when testers leave the beta or when Maki Okamoto removes inactive testers, which often happens around a new build. Select "Notify Me" on this page for an email the moment a seat opens (CodeWing Plus) or follow our free Telegram channel. You can also find similar betas in the Apps category.

Will installing the beta replace my current App Store version of Mami Wata, and will I lose my data?

Installing the TestFlight beta will replace the App Store version on your iPad, but all your local app data, documents, logins, and configurations are safely preserved. If you ever want to switch back to the stable public release, you can simply redownload Mami Wata directly from the App Store at any time without losing your data.

How long does a TestFlight beta build last before it expires?

Each TestFlight build has a maximum lifespan of 90 days from the day the developer uploaded it to Apple. You can see the countdown days directly beneath Mami Wata's title in your TestFlight app. Developers regularly release new builds with improvements, which automatically resets the 90-day timer so your testing is uninterrupted.

How do I send feedback or report bugs for Mami Wata?

You can send feedback directly to Maki Okamoto by taking a screenshot while using Mami Wata and tapping "Share Beta Feedback", or by opening TestFlight, tapping Mami Wata, and selecting "Send Beta Feedback". You can include notes, screenshots, and system logs to help the developer fix issues before the official App Store launch.

Mami Wata TestFlight Beta

Getting Started with the Mami Wata Beta

On iPadOS

About Mami Wata

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