There is no legitimate or ethical way to view deleted Instagram photos through third-party tools like the one you mentioned. Services claiming to recover or view deleted Instagram content often:

From a technical standpoint, a third-party website (like the tools associated with Istaunch) does not have access to Instagram’s internal, private databases. They cannot "query" Instagram’s servers to ask, "What did User X delete last week?" That would be a massive security breach.

This curiosity has given rise to a specific niche of online tools promising the impossible. Among the most searched terms in this niche is

Yes. In criminal or civil cases, law enforcement can send a legal hold to Instagram. But this requires a judge’s order and is not available to the general public.

None of these require breaching Instagram’s core security. However, the term “deleted Instagram photo viewer” is a classic . When you search for this tool, you are typically redirected to: