Oops! My Stepsister
Oops! My Stepsister is made and published by Interactive Studio Inc. AppBrain is an independent app data site and isn't affiliated with Interactive Studio Inc. The app name, icon, screenshots and description belong to Interactive Studio Inc. and are shown as published on Google Play.
AppBrain's verdict
Niche- Total installs
- 1.4 thousand
- Last updated
- July 23, 2026
Oops! My Stepsister is a niche app, with 1.4 thousand installs. It doesn't have enough ratings yet to judge what users think.
Installs
Tracked by AppBrain- Last 30 days
- 60
- Play install range
- 1+ thousand
- Launched
- August 2025
Installs over time
Oops! My Stepsister has been installed 1.4 thousand times. Over the past 30 days, it has been installed 60 times.
Rankings
Google Play top chartsGoogle Play Rankings for Oops! My Stepsister
Competitors
Similar apps and more from Interactive Studio Inc.Alternatives to Oops! My Stepsister
More from Interactive Studio Inc.
Releases
Updates seen on Google Play- Version
- 3.0.0
- Launched
- August 2025
User feedback
Ratings and reviews on Google PlayComments on Oops! My Stepsister for Android
Technology
Found in the app by AppBrain- Ads
- Contains ads
- Price
- Free
- Libraries
- ?
- App size
- 47.7 MB
- Content rating
- Medium
Technologies used by Oops! My Stepsister
About the app and developer
About Oops! My Stepsister
Oops! My Stepsister is a simulation app developed by Interactive Studio Inc.
How many times has Oops! My Stepsister been installed?
Oops! My Stepsister has been installed 1.4 thousand times. In the last 30 days, the app was installed 60 times.
What is the rating of Oops! My Stepsister?
Oops! My Stepsister has no ratings yet.
Is Oops! My Stepsister free?
Oops! My Stepsister is free. The app size is 47.71 MB. The latest version available is 3.0.0. The last update was on July 23, 2026.
What are the requirements for Oops! My Stepsister?
The app has a content rating of Medium Maturity. The app has been available on Google Play since August 2025.
App Performance Report
Get a detailed PDF report for Oops! My Stepsister with download trends, rating history, and key performance statistics — useful for competitive research or tracking your own app. Learn more
Get PDF Report — $29Developer information for Interactive Studio Inc.
nobuhiro.kono@interactive-studio.jp
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Store listing
By Interactive Studio Inc., from Google Play“Is it wrong to love a sister you’re not bound to by blood?”
Description by Interactive Studio Inc. Written by the developer, not by AppBrain. Click to read.
■Synopsis■
You’re living an ordinary college life with your mom and dad when your father suddenly confesses—he’s actually your stepdad, and he has three daughters you’ve never met! Their mother has gone missing, and now you’re suddenly sharing a home with your new stepsisters. Your mom isn’t happy, you’re confused, but slowly you start to adjust. As you help them face their own struggles, you begin to suspect there’s something dark behind their mother’s disappearance… and you can’t help but wonder if it’s wrong to fall for one of them. What will you do?
■Characters■
The Responsible Sister – Yuri
The oldest sister, protective and cautious. She doesn’t trust your stepdad—and by extension, you. Mature and level-headed, but clearly under a lot of stress.
The Rebellious Sister – Hinata
Second oldest, with a sharp tongue and a defiant streak. Her prickly exterior may just be hiding a softer, more vulnerable heart.
The Sweet Sister – Mei
The youngest, cheerful and friendly. A skilled gymnast, though she struggles with self-confidence.