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AirDiary
Free,Local, offline P2P tracking software using BLE diaries.
A free serverless, privacy-first peer-to-peer tracking and personal safety suite built using Flutter. AirDiary acts as a connectionless local logging diary and real-time security radar, securely mapping the location history and proximity of your offline devices onto your phone using localized BLE beacon metrics, zero-cloud LAN P2P synchronization, geofenced safe zones, and anti-stalking rogue beacon heuristics
Top comment
I’m incredibly excited to share AirDiary with you all today! 📡 We live in a world where finding your lost keys or tracking your tech usually means paying a monthly subscription, making an account, and handing your sensitive, real-time location history over to a corporate cloud. I wanted something different: a tracking and anti-stalking suite that is 100% free, 100% offline, and zero-knowledge. AirDiary is a local-first personal safety radar built entirely on Flutter. It turns your device into an independent tracker and security hub without ever touching the internet. Here is what makes AirDiary unique: • Zero-Cloud P2P Syncing: Keep your phone, tablet, and laptop in perfect sync. It uses local Wi-Fi UDP discovery and direct TCP socket streams to exchange data securely between your devices at home or work—no external servers required. • Smart Separation Alerts: Using Haversine math and smart geofences (like Home or Office), it knows if you’ve actually left your laptop behind at a coffee shop versus just walking to another room at home, preventing annoying false alarms. • Anti-Stalking Shield: Worried about hidden trackers? AirDiary passively listens to surrounding BLE beacons. If an un-paired beacon travels with you across multiple locations over a 15-minute window, the app flags it as a rogue tracker and alerts you immediately. • Battery-Conscious Math: Instead of burning your battery by constantly pinging your GPS, AirDiary uses an Exponential Weighted Moving Average (EWMA) filter to smoothly read BLE signals, only waking up the GPS when a registered device signature is verified nearby. AirDiary is fully open-source, serverless, and compiled natively for Android, iOS, Windows, and macOS. I’d love to hear your thoughts, feedback, and any feature ideas you have! How do you handle your personal tech privacy? Let’s chat in the comments!
About AirDiary on Product Hunt
“Free,Local, offline P2P tracking software using BLE diaries.”
AirDiary was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #141 on the daily leaderboard. A free serverless, privacy-first peer-to-peer tracking and personal safety suite built using Flutter. AirDiary acts as a connectionless local logging diary and real-time security radar, securely mapping the location history and proximity of your offline devices onto your phone using localized BLE beacon metrics, zero-cloud LAN P2P synchronization, geofenced safe zones, and anti-stalking rogue beacon heuristics
On the analytics side, AirDiary competes within Privacy, GitHub and Maps — topics that collectively have 65.7k followers on Product Hunt. The dashboard above tracks how AirDiary performed against the three products that launched closest to it on the same day.
Who hunted AirDiary?
AirDiary was hunted by Aritra De. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of AirDiary including community comment highlights and product details, visit the product overview.