According to the product description, this apple pastila is made without extra sugar added during production. The sweetness comes from the apples themselves: as the puree is gently dried, the natural fruit sugars become more concentrated, which is why the finished pastila tastes sweet even though no sugar is added.
This makes it a different choice from standard confectionery that typically contains added sugar, artificial flavourings or preservatives. However, “no added sugar” does not mean “no sugar”. The product is still naturally sweet, and the drying process increases the proportion of sugar relative to water. If you are watching your sugar intake, it is better to treat it as a sweet snack and keep portions small rather than as a sugar-free food.
It is also worth remembering that this is a fruit-based confectionery, not a substitute for fresh fruit or for a balanced diet. Since the assortment may include different variants, check the individual piece labelling if you need to know exactly what is in a particular piece, especially if you avoid certain fruits or ingredients.
As with any sweet food, the most practical approach is to enjoy it in moderation and include it as part of an otherwise varied diet.