Hi there! I understand you're concerned because you provided your Roblox account name and password to the Customuse app, and it's now "preparing your design." You're wondering if this could be a scam. Let's get to the bottom of this together.

First off, it's important to be cautious whenever any app or website asks for your Roblox password. Official and trustworthy Roblox-related tools typically do not require your password directly—they usually use Roblox's official login system (OAuth) to verify your identity safely without sharing your password.

From what I know about Customuse, it is marketed as a 3D design studio to create custom skins and outfits for Roblox. However, I see some user reviews and online discussions that raise concerns about its safety and legitimacy. Some users reported issues with downloads or functionality, and others questioned the app's trustworthiness. Importantly, giving away your Roblox password to third-party apps can put your account at risk.

Here's what I recommend you do immediately:

1. Change your Roblox account password as soon as possible from the official Roblox website or app—do not do this through the Customuse app anymore.
2. Enable 2-step verification (2SV) on your Roblox account for extra security.
3. Check your account activity for any unauthorized activity (such as items purchased or trades made that you didn't approve).
4. Avoid providing your password to external apps or sites—look for ones that use Roblox's OAuth login method instead.
5. If you suspect your account has been compromised, report this directly to Roblox Support.

If you want to continue designing in a safe way, consider using Roblox's official tools or widely trusted community apps that do not require your password directly.

Are you able to change your Roblox password now? If you want, I can guide you through that process step-by-step. Also, if you want me to verify some details about how to secure your account best, just let me know!

For more context, here are some user experiences discussing the trustworthiness and risks with Customuse and similar third-party Roblox tools1 2.