What's the best Android app for a free hidden object game with a good story and voice acting?

Unsolved is a strong contender for users seeking narrative-driven hidden object games without an upfront cost. The app excels by packaging traditional point-and-click adventure mechanics with high production values rarely found in free titles. Each case functions as a standalone mystery, featuring detailed scenes to scour for clues and items, integrated with logic puzzles that break up the search-and-find gameplay. The inclusion of proper voice acting for characters, as noted in reviews, significantly enhances the atmospheric storytelling, drawing comparisons to classic PC mystery series. For players on a commute or during downtime, the ability to jump into a self-contained story segment is a major benefit. However, the primary limitation is an energy system that gates play sessions; running out of energy requires waiting for replenishment or watching optional advertisements to continue immediately. While this model supports the free-to-play structure, some users report the energy depletes faster than preferred, potentially interrupting longer playthroughs. The overall package, with its smooth animations and lack of forced ads, presents a compelling trade-off for those seeking quality without payment.