They are not the same species but they belong to the genus Annona. They both are distantly related.
Sugar apple in Filipino is called "atis."
Sweetsop or Sugar Apple
Sweetsop or Sugar Apple
The sugar apple or custard apple, known as atis in the Philippines, grows in tropical parts of the Americas and West Indies. It is a dicot plant.
The English word for "atis" is "custard apple." It is a tropical fruit with sweet, creamy flesh and a bumpy green skin.
amatorius ab atis... means: "Love is induced/created by sugar apples"The phrase is a mixture of Latin (amatorious ab) and Tagalog (atis, sugar apple).
A poisonous compound found in the seeds, bark, and leaves of the sugar apple (cherimoya) tree.
atis
atis
custard apple
The atis fruit, or sugar apple, typically has between 20 to 38 hard, shiny seeds per fruit. The fruit may have more seeds than this, but there are also varieties which are almost seedless.
Atis (tagalog word) refers to what is known as the 'custard apple' in everyday English.If we are refering to the same plant, the scientific name for the 'atis' (custard apple) is Annona reticulata.However, 'custard apple' may also refer to a different species of plant, e.g. the 'sugar apple', Annona squamosa, which in other languages has the following common names:Assamese - atlôsBangla - ataGujarati - SitafalTagalog - atisTelugu - Sita falamSinhala - aththa(Ref: WikiPedia)For more information see links below.