[{"data":1,"prerenderedAt":332},["ShallowReactive",2],{"device-calibre-bio-en":3},{"_path":4,"_dir":5,"_draft":6,"_partial":6,"_locale":7,"title":8,"description":9,"ogTitle":10,"ogDescription":11,"badge":12,"heroTitle1":13,"heroTitle2":14,"heroText":15,"heroColor":16,"body":17,"_type":326,"_id":327,"_source":328,"_file":329,"_stem":330,"_extension":331},"\u002Fen\u002Fdevices\u002Fcalibre-bio","devices",false,"","Calibre Bio & OpenSpiro","Calibre Bio app not working? OpenSpiro is a free desktop replacement. No server required. Works with all Calibre Bio devices.","Calibre Bio shut down. Your device didn't. — OpenSpiro","Free desktop software for your Calibre Bio VO2 analyzer. No server, no login. Power meter integration included.","Your device still works","Calibre Bio shut down.","Your device didn't.","Calibre Biometrics has filed for bankruptcy. The servers are still running, but could be shut down at any time. Your hardware is fine — it just needs software that works without a server. That's OpenSpiro.","emerald",{"type":18,"children":19,"toc":320},"root",[20,29,65,71,77,82,87,93],{"type":21,"tag":22,"props":23,"children":25},"element","h2",{"id":24},"get-started-in-3-minutes",[26],{"type":27,"value":28},"text","Get started in 3 minutes",{"type":21,"tag":30,"props":31,"children":32},"ol",{},[33,45,55],{"type":21,"tag":34,"props":35,"children":36},"li",{},[37,43],{"type":21,"tag":38,"props":39,"children":40},"strong",{},[41],{"type":27,"value":42},"Download OpenSpiro",{"type":27,"value":44}," — Free for macOS and Windows. ~5MB, no account required.",{"type":21,"tag":34,"props":46,"children":47},{},[48,53],{"type":21,"tag":38,"props":49,"children":50},{},[51],{"type":27,"value":52},"Turn on your Calibre device",{"type":27,"value":54}," — Power on, wait for the LED. OpenSpiro finds it automatically via Bluetooth.",{"type":21,"tag":34,"props":56,"children":57},{},[58,63],{"type":21,"tag":38,"props":59,"children":60},{},[61],{"type":27,"value":62},"Calibrate & measure",{"type":27,"value":64}," — Run the built-in calibration (30 seconds), then start your first session. Your power meter and HR strap connect simultaneously.",{"type":21,"tag":22,"props":66,"children":68},{"id":67},"what-happened-to-calibre-bio",[69],{"type":27,"value":70},"What happened to Calibre Bio?",{"type":21,"tag":72,"props":73,"children":74},"p",{},[75],{"type":27,"value":76},"Calibre Biometrics LLC, the manufacturer of the Calibre Bio portable VO2 analyzer, filed for Chapter 7 bankruptcy in March 2026 and ceased operations. Their Android companion app requires a server connection to function — the servers are still running for now, but could be shut down at any time. Without a server, the app stops working entirely.",{"type":21,"tag":72,"props":78,"children":79},{},[80],{"type":27,"value":81},"The hardware itself is unaffected. The Calibre Bio device uses standard Bluetooth Low Energy to stream breath-by-breath sensor data.",{"type":21,"tag":72,"props":83,"children":84},{},[85],{"type":27,"value":86},"OpenSpiro connects directly to your Calibre Bio device via Bluetooth. No server, no account, no internet connection required. All data stays on your machine.",{"type":21,"tag":22,"props":88,"children":90},{"id":89},"calibre-bio-app-vs-openspiro",[91],{"type":27,"value":92},"Calibre Bio App vs. OpenSpiro",{"type":21,"tag":94,"props":95,"children":96},"table",{},[97,121],{"type":21,"tag":98,"props":99,"children":100},"thead",{},[101],{"type":21,"tag":102,"props":103,"children":104},"tr",{},[105,111,116],{"type":21,"tag":106,"props":107,"children":108},"th",{},[109],{"type":27,"value":110},"Feature",{"type":21,"tag":106,"props":112,"children":113},{},[114],{"type":27,"value":115},"Calibre App",{"type":21,"tag":106,"props":117,"children":118},{},[119],{"type":27,"value":120},"OpenSpiro",{"type":21,"tag":122,"props":123,"children":124},"tbody",{},[125,144,162,180,197,215,233,250,267,284,302],{"type":21,"tag":102,"props":126,"children":127},{},[128,134,139],{"type":21,"tag":129,"props":130,"children":131},"td",{},[132],{"type":27,"value":133},"Server required",{"type":21,"tag":129,"props":135,"children":136},{},[137],{"type":27,"value":138},"Yes (future uncertain)",{"type":21,"tag":129,"props":140,"children":141},{},[142],{"type":27,"value":143},"No — 100% local",{"type":21,"tag":102,"props":145,"children":146},{},[147,152,157],{"type":21,"tag":129,"props":148,"children":149},{},[150],{"type":27,"value":151},"Platform",{"type":21,"tag":129,"props":153,"children":154},{},[155],{"type":27,"value":156},"Android only",{"type":21,"tag":129,"props":158,"children":159},{},[160],{"type":27,"value":161},"macOS + Windows",{"type":21,"tag":102,"props":163,"children":164},{},[165,170,175],{"type":21,"tag":129,"props":166,"children":167},{},[168],{"type":27,"value":169},"Power meter integration",{"type":21,"tag":129,"props":171,"children":172},{},[173],{"type":27,"value":174},"No",{"type":21,"tag":129,"props":176,"children":177},{},[178],{"type":27,"value":179},"BLE + ANT+ (Garmin, Favero, Wahoo, ...)",{"type":21,"tag":102,"props":181,"children":182},{},[183,188,192],{"type":21,"tag":129,"props":184,"children":185},{},[186],{"type":27,"value":187},"Smart trainer control",{"type":21,"tag":129,"props":189,"children":190},{},[191],{"type":27,"value":174},{"type":21,"tag":129,"props":193,"children":194},{},[195],{"type":27,"value":196},"FTMS ERG mode",{"type":21,"tag":102,"props":198,"children":199},{},[200,205,210],{"type":21,"tag":129,"props":201,"children":202},{},[203],{"type":27,"value":204},"Test protocols",{"type":21,"tag":129,"props":206,"children":207},{},[208],{"type":27,"value":209},"None",{"type":21,"tag":129,"props":211,"children":212},{},[213],{"type":27,"value":214},"Free: VO2max Ramp, RMR · Pro: FatMax, Efficiency, AI",{"type":21,"tag":102,"props":216,"children":217},{},[218,223,228],{"type":21,"tag":129,"props":219,"children":220},{},[221],{"type":27,"value":222},"Multiple athletes",{"type":21,"tag":129,"props":224,"children":225},{},[226],{"type":27,"value":227},"Cloud account",{"type":21,"tag":129,"props":229,"children":230},{},[231],{"type":27,"value":232},"Local profiles, no login",{"type":21,"tag":102,"props":234,"children":235},{},[236,241,245],{"type":21,"tag":129,"props":237,"children":238},{},[239],{"type":27,"value":240},"Data export",{"type":21,"tag":129,"props":242,"children":243},{},[244],{"type":27,"value":174},{"type":21,"tag":129,"props":246,"children":247},{},[248],{"type":27,"value":249},"CSV + JSON",{"type":21,"tag":102,"props":251,"children":252},{},[253,258,262],{"type":21,"tag":129,"props":254,"children":255},{},[256],{"type":27,"value":257},"Session replay",{"type":21,"tag":129,"props":259,"children":260},{},[261],{"type":27,"value":174},{"type":21,"tag":129,"props":263,"children":264},{},[265],{"type":27,"value":266},"Full scrubber with chart + metrics",{"type":21,"tag":102,"props":268,"children":269},{},[270,275,279],{"type":21,"tag":129,"props":271,"children":272},{},[273],{"type":27,"value":274},"VT1\u002FVT2 detection",{"type":21,"tag":129,"props":276,"children":277},{},[278],{"type":27,"value":174},{"type":21,"tag":129,"props":280,"children":281},{},[282],{"type":27,"value":283},"Automatic",{"type":21,"tag":102,"props":285,"children":286},{},[287,292,297],{"type":21,"tag":129,"props":288,"children":289},{},[290],{"type":27,"value":291},"Calibration",{"type":21,"tag":129,"props":293,"children":294},{},[295],{"type":27,"value":296},"In-app",{"type":21,"tag":129,"props":298,"children":299},{},[300],{"type":27,"value":301},"In-app (same 30s ambient flow)",{"type":21,"tag":102,"props":303,"children":304},{},[305,310,315],{"type":21,"tag":129,"props":306,"children":307},{},[308],{"type":27,"value":309},"Price",{"type":21,"tag":129,"props":311,"children":312},{},[313],{"type":27,"value":314},"Free (server-dependent)",{"type":21,"tag":129,"props":316,"children":317},{},[318],{"type":27,"value":319},"Free (Pro coming soon)",{"title":7,"searchDepth":321,"depth":321,"links":322},2,[323,324,325],{"id":24,"depth":321,"text":28},{"id":67,"depth":321,"text":70},{"id":89,"depth":321,"text":92},"markdown","content:en:devices:calibre-bio.md","content","en\u002Fdevices\u002Fcalibre-bio.md","en\u002Fdevices\u002Fcalibre-bio","md",1776594391535]