Ankavandra Airport (JVA) has no lounge at all, and the honest picture starts with what this small Madagascar interior airstrip genuinely is: a basic gravel or grass strip serving a remote town in Madagascar's western interior region, built for light utility flying rather than any scheduled passenger service that would ever call for real premium waiting space of any kind at all.
Antananarivo, Madagascar's capital city in the central highlands, is the honest pivot for anyone genuinely asking about real lounges in the country. Ivato International Airport at Antananarivo carries the country's actual premium and lounge-style facilities, modest by international standards but genuine, tied to airline status or a qualifying premium ticket, and it is the only realistic place in Madagascar to look for that kind of access.
Back at Ankavandra itself, the ground-side reality is the real anchor: travelers wait in the open or under a small shelter rather than any enclosed terminal building, boarding is a short walk across bare ground to a small aircraft, and the entire experience is closer to a rural airstrip than anything resembling a commercial gateway. That ground-level reality, not any policy choice by an operator, is why there is nothing here to compare with a lounge, now or in the foreseeable future.
If Ankavandra is part of your route, plan for a bare-bones stop: no food service of any kind to rely on, minimal or no shelter beyond a small structure, and a boarding process built around a light aircraft rather than a scheduled airline queue. Direct any lounge or premium-access expectations firmly toward Antananarivo, and confirm your specific charter or scheduled connection well ahead of travel, since service to remote strips like this changes with demand, the season, and road conditions on the long overland way up to Madagascar's central highlands.