Buy or Not is made and published by Kyusung Lee. AppBrain is an independent app data site and isn't affiliated with Kyusung Lee. The app name, icon, screenshots and description belong to Kyusung Lee and are shown as published on the App Store.
AppBrain's verdict
- Last updated
- September 5, 2026
- Size
- 63.0 MB
User feedback
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Store listing
By Kyusung Lee, from the App StoreDescription by Kyusung Lee Written by the developer, not by AppBrain. Click to read.
So many things you want, but not sure you should actually hit "buy"? Just enter the product name and price in Buy or Not. The AI rates your purchase on a four-level scale — from Highly Recommended to Not Recommended — and delivers a candid, friend-like verdict, along with better alternatives when they exist.
Key Features
AI Purchase Advice
Enter the product name, price, and any extra details, and the AI analyzes whether to buy on four levels: Highly Recommended / Recommended / Hold / Not Recommended. No dry lectures — just the honest, entertaining take you'd get from a good friend.
Better Alternatives
If there's a smarter choice than the item you're eyeing, the AI suggests it too.
Free Consultation Tickets
Start with 3 free tickets, and get one more automatically every day. Running low? Watch a short ad to earn extras.
Purchase History
Look back on past consultations by date, and share the results with friends.
Personalized Advice
Based on a simple profile, the AI tailors its advice to your spending style.
Comfortable Experience
Supports both dark and light modes, available in English, Korean, Japanese, and Chinese.
When to Use It
- When you want to stop an impulse buy
- When you're torn between similar products
- When you need an objective take on whether the price is fair
- When you don't want buyer's remorse
Note
AI advice is for reference only. The final purchase decision is always yours.
Safety and technology
Found in the app by AppBrain- Price
- Free
- App size
- 63.0 MB
- Content rating
- Everyone
Technologies used by Buy or Not
Releases
Updates seen on the App Store- Version
- 1.0.10
- Launched
- June 2026
No changelog data
Alternatives
Similar apps and more from Kyusung LeeRankings
App Store top chartsApp Store Rankings for Buy or Not
About the app and developer
About Buy or Not
Buy or Not is a shopping app developed by Kyusung Lee.
User Ratings
The app has no ratings yet.
App Information
Buy or Not is freely available from the App Store. The app size is 62.98 MB. The latest version available is 1.0.10. The last update was on September 5, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since June 2026.
Developer information for Kyusung Lee
Address:
Frequently asked questions about Buy or Not
Is Buy or Not free?
Yes. Buy or Not is free on the App Store.
Is Buy or Not still available?
Yes. Buy or Not is on the App Store, and the last update we saw was on September 5, 2026.
How large is Buy or Not?
Buy or Not is 62.98 MB.
Is Buy or Not suitable for children?
App Store rates the content of Buy or Not as suitable for everyone.
Who made Buy or Not?
Buy or Not was developed by Kyusung Lee. It is listed in the shopping category on the App Store.
What are the best alternatives to Buy or Not?
People looking at Buy or Not also look at these shopping apps: 또바바, 콘크리트브레드, 빈블, PIMPOLLO, Luxiface.
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