Wiredash has a full range of Flutter app development tools, including automated customer satisfaction surveys and the Promoter Score to measure app quality. The service offers privacy-respecting analytics and tools to gather user feedback, like bug reports and feature requests. Wiredash's pricing is on a scale from free to €169 per month, so it should fit your team size and growth stage.
Another option is Anecdote, a customer feedback analytics service that can be connected to more than 65 feedback sources like App Store reviews and social media. It uses its own Natural Language Processing Engine to analyze sentiment trends and bugs and offers real-time insights to help you optimize the customer experience. Anecdote has a range of pricing options, including a free tier, so it should be useful for different parts of your business.
1Flow has an in-app survey service to measure NPS, CES, CSAT and PMF with AI-generated surveys and customizable in-app flows. It can be integrated with tools like Segment, Amplitude and HubSpot for detailed out-of-the-box reporting and insights. 1Flow's pricing scales from basic to enterprise levels.