Make a boat hull speed calculator app with one sentence

First prompt

Make an app for my sailboat, I put the waterline length in feet, and it shows the hull speed in knots

App name

Hull Speed

Suggested features picked before building

Boat Library, Formula Guide

In the original recording, it took about 1 min 11 sec to build.

The app it made

• Entering a waterline length of 16 feet showed “5.4 knots” right away. That’s 1.34 × √16.
• The boat was saved to the Boat Library.

Change request

Add a line with the speed in km per hour

After the change

• A “9.9 km/h” line appeared under 5.4 knots.

When reopened

Save, close, and open it again, and the 2 boats are still in the Boat Library.

Try writing it like this for a similar app

• When I enter my boat’s waterline length, show the hull speed in knots and km/h.
• Let me save several boats and compare their speeds side by side.
• When I enter the distance I want to go, calculate how many hours it takes at that speed too.

These are sample prompts, not real cases. What you get depends on what you ask for.

How to make it

1. Type the app you want in one sentence in the box on the home screen.
2. Answer “Give your app a name.” with the name you want.
3. From the features BYVE AI suggests, pick only the ones you want.
4. Tap “Build for 1 token” to build the app, then tap “Open app” to use it right away.
5. Write what you want to change in the chat, and the same app gets updated. A change also uses 1 token.

Good to know

• Each new app or change uses 1 token. You get 2 tokens when you first install, and you can get up to 3 more every 24 hours by watching ads. There are no in-app purchases.
• The apps you make and what you enter are saved on your phone, and apps you’ve already made open without internet. Features that fetch outside information, like weather and maps, need internet.
• It works on Android 8.0 or later and iOS 17.0 or later, and there’s no sign-up.

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App examples

This example in other languages: 한국어