Product reviews app for Android and iOS

I will commission the creation of a lightweight application working with a database (MariaDB 10.5/Aria) on the server to check product reviews and issue reviews for products with points and a referral program. The user registers/logs in using an e-mail or Google account, accepts the terms and conditions of the website. After registering, he fills in the name (or downloads from Google), adds an avatar (profile picture) or chooses from 10 available avatars (ico). After completing the data or logging in again or opening the already logged in application (it is important that the application remembers the login data for a period of 30 days), the user first sees 10 new products (new products are added by the administrator) with the option to show more (moving to the New products page in the application where there are a maximum of 100 products), in turn sees the latest reviews (TOP50) mixed "recommend" and "do not recommend". The user sees an image (photo of the product) on the left, a title in bold on the right, and an opinion (up to 250 characters) below the title. After clicking on the title or photo, the product page appears with all the reviews for that product. From the menu, he has the following options: Latest reviews, Product search, Add review, My reviews, New products, Recommend and win. By selecting Search for a product, the user can scan the barcode from the product in the store and check the opinions about this product in the database. After selecting Add reviews, the user can add an opinion about a product already existing in the database (scans the barcode from the product or enters it manually), and if there is no product in the database, he adds it at this moment (scan the barcode or enter the code manually), adding a product name, adding a product photo. When the product is in the database, the user additionally adds a receipt to confirm the purchase of the product. Then select the option I recommend or do not recommend. Chooses stars from a scale of 5 stars. And add a review description minimum 100 characters, maximum 250 characters. He adds a receipt and a photo of his product (unpublished data, to protect opinions against forced removal by manufacturers). saves. 1 point is credited to his account. After selecting My Reviews, he sees all reviews added from his account. We choose Recommend and Win. Here, the user has his points account balance (for each opinion he receives 1 point, in the case of registration from a recommendation - for every 10 points, 1 point is deducted from his account and transferred to the recommender), he also sees the number of points (total) given to the recommender (+ recommender's ID) ) and the number of points received from referrals. Below is a referral link containing his user ID and the user ID itself. From the management panel, e.g. on the server (PHP etc.), the administrator can add prizes, e.g. for 1000 points, exchange for a €5 voucher for shopping in Kaufland, Biendronka, Lidl, etc. For 10,000 points, for a €100 voucher for shopping, for 100,000 points a voucher €250 for a wizzair airfare, for 1,000,000 points a trip to Disneyland for 2. These are just examples of awards. New products - the administrator adds new products as part of, for example, advertising campaigns of producers who want to check how the product fared in the eyes of customers. At the moment of obtaining 200 opinions or within 1 month - the product is moved to another section, i.e. normal products, and disappears from the new products section. The user sees new products and can add an opinion for each new product (he must also take a photo of the product and the receipt) on the same terms as a normal product, except that he receives 3 points for adding an opinion in the New Products section. There must be no external advertisements in the application, a small logo must appear in the lower part of the application.