AppFollow is well suited if you only operate in a few app store countries and don't have a high volume of keywords that you are looking to rank for. This is, of course, the free plan. Besides that AppFollow is well suited for communication with other apps - they have an open API and other connections to a ton of third-party analytical tools.
Very well suited to anyone seeking to grow their reputation through sourcing reviews. They have advanced automation features that many can take advantage of to automate the process too.
They are the best in the business. To describe how good, I wanted to develop a way to flip a switch in my CRM to have a request sent out, but then make sure that another request could not be sent out. They introduced me to and taught me how to use Zapier to achieve this requirement. This took a 2-hour support session. They are wonderful to work with!
While App Annie is extremely robust and pulls in data from acquisition channels, app stores, and elsewhere, it can be quite overwhelming at times. If you are looking for more simple and just keyword positioning then definitely look at AppFollow. Apart from the two platforms themselves, I've had numerous contact experiences with both AppFollow and App Annie. The winner is definitely AppFollow with a less aggressive approach and a higher willingness to go above and beyond to make sure all questions are answered. With App Annie I was bombarded with a ton of sleazy, sales emails to purchase their product.
Because I trust reviews from ReviewInc, I followed it. Also, there are many business partners and friends of mine who have recommended this to me. We in fact share the review links with each other from ReviewInc. The market recognizes ReviewInc comments and feedback so that's why I selectedIReviewInc against over others.