I use this service for analytics on Wildberries. I didn't like Ozon very much, and I haven't tried Yandex.Market since I'm not selling there. Overall, I'm satisfied. I first tested it for free (they offer a one-week trial), and then I immediately switched to the standard plan. There's no point in choosing the cheaper option since the external analytics there isn't very good, and I didn't want to buy the more expensive plan. I paid for a year in advance, which gave me a 30% discount. As a result, the service costs me about 3,500 rubles a month on average. It's unlikely to find similar functionality for that price. I'm satisfied with the quality of the analytical data; the service collects accurate data on prices, purchases, stock levels, calculates dynamics, and shows sales. Unlike other similar services, it takes into account sales based on the "Purchased more than ... times" counter (while many calculate based on the difference in stock levels, which isn't always accurate).
