This app “Lisnum” uses Google’s “Google Text To Speech” app to read numbers, but it has a problem with some numbers not being pronounced.
The following is a summary of the information.
English
There is no problem.
French
There is no problem.
Korean
2：It does not sound completely.
Chinese
There is no problem.
German
There is no problem.
Italy
There is no problem.
Japanese
2：It does not sound and makes a strange noise.
5：There is a little noise.