Lentri is a warm, tactile companion for puzzle lovers. Capture a photo of each puzzle box to build your personal collection, then track your work with a smooth circular progress ring and built-in timer. Log your progress over time, and when you finish, snap a final photo and rate the experience (difficulty and satisfaction). Browse your collection by status, revisit in-progress puzzles quickly, and celebrate completed builds on an achievement wall. Lentri also includes a stats dashboard to help you see totals like completed puzzles and time spent—so every piece of your hobby feels organized and rewarding.