How to implement captcha in app

[Still-learning]

Try either this

reCAPTCHA: Protect your app from malicious traffic

Introduction reCAPTCHA is a free service that uses an advanced risk analysis engine to protect your app from spam and other abusive actions. If the service suspects that the user interacting with your app might be a bot instead of a human, it serves a CAPTCHA that a human must solve before your app can continue executing. Blocks [blocks] How to use it Step 1. Go to Google reCaptcha website. Step 2. Fill all the required fields note you need to select reCAPTCHA Android if you are sel…

Or this

reCaptcha system

Introduction Hi, today I am making a simple Guide on how to add a captcha system. Needed components For this tutorial, we will need the following components: [Untitled] - A canvas [Untitled] - A text box [Untitled] - A button Generating a code Add a canvas component to the screen and make it 80x210 pixels (height, width) Set the line width to 4. Set the paint color to #535252FE and font size to 30. Add a button as well as a textbox. Change the button text to Verify Set the textbox hin…