Clone a Profitable App and Wire It to the Higgsfield API (GPT-6 Astra)
This is the full build from the video. You find an app that already makes money, you copy the idea with one twist, and GPT-6 Astra builds it while the Higgsfield API handles every photo and video the app generates. You don't write any code, and the first working version lands in minutes.
Step 1. Find an app that already makes money
Go to IdeaWave and open the startups directory. It ranks real apps by the revenue they're pulling, so you're not guessing what people pay for.
Pick your category. In the video I used AI Image & Video, but the same thing works for fitness, finance, dating or anything else.
Now scroll and look for a simple one. Not the app with forty features. The one that does a single thing a person can explain in one sentence. Those are the ones you can actually rebuild today.
The app I picked turns one photo of a pet into a short dancing video. One input, one output. That's the shape you want.
Step 2. Change one thing
Don't copy the app. Copy the mechanic, then point it at a trend that's moving right now.
The original turned pet photos into dancing videos. I kept the photo in, video out mechanic and swapped dancing for shadow boxing, because that's the format people are already searching for.
That one swap is the whole product. Same machine underneath, different trend on top. When that trend cools off you change the preset, not the app.
Use your own name, your own logo and your own copy. You're rebuilding an idea, not lifting a brand.
Step 3. Let ChatGPT write the build prompt
Open ChatGPT, grab the App Store link of the app you picked, and paste this. It reads the listing and writes the prompt that GPT-6 Astra will actually build from.
Fill the two brackets and send it.
[paste the App Store link of the app you picked]
Give me the prompt to hand to GPT-6 Astra to recreate this app, but instead of [what the original does] I want [your twist], following the viral trends.
Use the Higgsfield API for any photo or video generation the app needs.
Give me the prompt only, ready to paste.Step 4. Get your Higgsfield API key
While that prompt is writing itself, go get the key. One key gives the app access to hundreds of video and image models, so you never wire up a generation service yourself.
⚡ Open the Higgsfield API and create your key
- Tap here to open Higgsfield and sign in.
- Open API keys in the sidebar and create a new one.
- Copy it once and keep it somewhere safe. It's shown a single time.
There's a promotion running that drops $15 in free credits into the account, which is enough to build and test the whole thing before you pay for anything. Those credits work across any app you build, not just this one.
By the time the key is created, your build prompt is usually ready.
Step 5. Build it with GPT-6 Astra
Back in ChatGPT, switch the toggle from Chat to Work. That's the mode that builds and runs the app instead of just talking about it.
Make sure the model picker says GPT-6 Astra. Paste the build prompt, then paste your API key in the same message.
Now leave it alone. Within a few minutes you get a fully working app back, with the upload, the presets, the generation and the pricing already in it.
Test it before you touch anything else. Upload a real photo, pick a preset, hit generate, and watch the first video come out.
The line that wires the Higgsfield API properly
If the build ever puts the key in the wrong place or skips the progress states, paste this and it fixes it.
Every image and video generation in this app goes through the Higgsfield API.
Read the docs at console.higgsfield.ai and use the image-to-video model with a motion prompt.
Store the key in HIGGSFIELD_API_KEY, server side only, never in the browser.
Each preset is a saved motion prompt. Submit the job, poll until it finishes, store the result URL, and show real progress in the UI. Handle the failure case with a retry instead of a blank screen.Make the app market itself
This is the part most people skip, and it's the part that actually grows the thing.
Every video your users make is an ad for the app. So make it effortless to post. Paste this after the app works.
Add two things.
One, a Convert to GIF button on every finished video, so people can drop it straight into Discord, Telegram or WhatsApp.
Two, a share card under the result with the video already sized for Reels, TikTok and Shorts, plus a caption written for them with hashtags.
Watermark the free tier's output with the app name. Paid users get it clean.Do it again with any app
Nothing here is about pets. The loop is the same every time.
Find an app making real money. Find the one thing it does. Change one variable so it rides a trend people are searching for right now. Let Astra build it and let the Higgsfield API do the generating.
The first one takes an afternoon. The fourth one takes an hour.
If you want the version of this built on a free tier instead, that's the Replit spin-off build, and the plugin route inside ChatGPT is the GPT-6 Astra guide.
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Frequently asked questions
No. GPT-6 Astra in Work mode writes and runs the app. Your job is picking the idea, pasting the prompt and testing the result. If something breaks you describe what you see and it fixes it.
There's a promotion running that gives you $15 in free credits when you create your key, which covers building and testing. After that you pay per generation, and the cost per video is cents. Price your app above that and the margin takes care of itself.
No. The pet app was just the example. Any app with a simple one in, one out mechanic works: photo to video, text to image, voice to clip. Pick the category on IdeaWave that you actually understand and the rest is identical.
You're copying a mechanic, not a product. Ideas and features aren't protected, but names, logos, copy, screenshots and code are. Use your own branding and write your own copy and you're fine. Never reuse their assets or their App Store listing.
It's almost always the motion prompt, not the model. Be specific about what moves, keep the subject identical to the photo, and state the length and aspect ratio. Then regenerate. Two or three passes on the preset prompt is normal before it lands every time.