Based on our record, MakeAppIcon should be more popular than Piio. It has been mentiond 3 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Piio.co — Responsive image optimization and delivery for every website. Free plan for developers and personal websites. Includes free CDN, WebP and Lazy Loading out of the box. - Source: dev.to / almost 3 years ago
You also need to create an App Icon to use Fastlane or you will get an error on running fastlane beta. You can simply create one using the website MakeAppIcon and follow this tutorial to configure it properly. - Source: dev.to / 7 months ago
Add your app icons to the "assets" folder. Make sure to include versions of the icon for different screen densities, such as 1x, 2x, 3x, and 4x. You can generate these versions using a tool like https://makeappicon.com/. - Source: dev.to / over 1 year ago
Https://makeappicon.com/ Optimized for both for Xcode and Android Studio. Source: over 2 years ago
Crunch - Crunch is a No Judgment Gym that believes in making serious exercise fun by fusing fitness and entertainment. Join Crunch for all your fitness needs!
EasyAppIcon - EasyAppIcon helps you to create your own app icons easily. Supporting Android Adaptive Icon!
Optimage - Advanced image optimization tool
App Icon Generator - Generate icons and images for mobile apps, android and iOS. No need to upload or download. Works on your browser
imgix - Real-time Image Processing. Resize, crop, and process images on the fly, simply by changing their URLs.
App Icon Maker - Create icons for mobile app stores online for free.