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FAQ & Prompt Tips

A guide to using the prompts3 catalog, member features, image generation with ChatGPT and Gemini, advertiser registration, payments and refunds, copyright, and privacy.

01 How do I use the prompts?

Open the card you want in the catalog, copy the prompt, then paste it into ChatGPT or Google Gemini and send it.

02 When images fail to generate

When image generation fails or the quality is low, the cause is usually related to the external generation service's account status, usage limits, model policies, input images, or prompt restrictions.

03 What member features are available?

You can search and copy from the catalog without signing up. Signing in with an Apple or Google account unlocks activity features such as favorites, recent items, collections, the notification center, and image generation requests.

Q. How does an image generation request work?

Submit a title and description (optionally with a reference image), and generation proceeds after automatic review. You can check completed or rejected results in My Images and the notification center, and the mobile apps also notify you via push notifications. For rejected requests, tap the card to see the reason and delete the record.

Q. Where are generated images used?

Generated items are accepted as candidate assets that may be published publicly in the catalog. See Article 4 of the Terms of Service for the detailed publication conditions.

04 Who owns the copyright of AI outputs?

The ownership and usage terms of images you generate directly on an external service follow that service's terms and policies.

Things to check

Before publishing outputs generated on an external service or using them for sale, review that service's terms together with applicable laws.

05 How do I register an ad?

Advertisers can sign up with email verification codes (OTP) in the separate advertiser console, submit business information, register ad creatives, make payments, and track campaign delivery.

Q. Are there restrictions on advertiser sign-up?

Persons under 14 cannot register as advertiser members. Advertisers must accurately submit the information needed to run ads, such as the business name, business registration number, representative, opening date, contact person, and ad creatives. You can set or change a separate password in account settings.

Q. What kinds of ads can be rejected?

Adult content, gambling or speculative content, illegal financial services, ads that misrepresent the efficacy of medical devices or medicines, political ads, false or exaggerated ads, content promoting discrimination, hate, or violence, and ads with a high likelihood of infringing others' rights may be rejected or have their placement suspended.

Q. How are ads displayed?

Some cards, the hero area, featured areas, or links within the service may be advertising or affiliate content, and such content carries an 'Ad' label so users can recognize it.

06 How are payments and refunds handled?

Ad payments are processed through Toss Payments. Card details are held by Toss Payments, and prompts3 does not store raw payment information such as card numbers.

07 How is personal data handled?

General users can browse the catalog without signing up. Information needed to provide each feature is processed when you use Apple or Google sign-in, favorites, collections, image generation requests, push notifications, feedback, or advertiser membership and ad operations.

08 Prompt writing tips

When editing catalog prompts, separating the parts you change from the parts you keep helps you get stable results.

Separate Korean text from style descriptions

Write the Korean text that will appear in the image inside double quotes, short and clear, and describe lighting, composition, color, and texture in separate sentences.

Organize the editable fields

Splitting the changeable items — store name, product name, colors, person, background — into about 5–7 fields makes it easy to create multiple variations while keeping the same structure.

Write out what to avoid

Listing the elements to avoid in a separate sentence — distorted Korean characters, excessive retouching, unwanted logos, confusion with real brands, exaggerated ad copy — helps you fine-tune the result.

Specify aspect ratio and intended use

Noting the aspect ratio and medium you will use — square, vertical poster, horizontal banner — helps reduce unwanted cropping.

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Last updated: 2026-07-11