On iOS, "repacks" are modified IPA files. Because Apple's ecosystem is highly secure, these modifications are easily detected by Garena's server-side checks.
When a hack or an iOS version is labeled "patched," it means Garena's anti-cheat engine or Apple's security update has blocked the exploit. Searching for a hack for a patched system is a contradiction; the security hole is already closed. On iOS, "repacks" are modified IPA files