Thunkable - Powerful but easy to use, drag-and-drop mobile app builder.
AppFollow - AppFollow is an integrated solution that makes monitoring, analyzing, and elevating your app's reputation easy.
MIT App Inventor - App Inventor is a cloud-based tool, which means you can create apps for phones or tablets right in your web browser.
appfigures - Cross-platform app store analytics for all of your mobile apps.
Bubble.io - Building tech is slow and expensive. Bubble is the most powerful no-code platform for creating digital products.
AppReviewBot - Get new iOS App Store and Google Play Store reviews directly in Slack, Microsoft Teams or Mattermost as soon as they happen. Unlimited apps, every country.