# BikeTalk: Car Back! — Spoken alerts for rides & runs > Audio alerts for cyclists and runners with group intercom and performance tracking. (iPhone/iPad app by Digital Gemba LLC.) - Source: https://appshunter.io/ios/app/biketalk-car-back/id6762529649 (this page in markdown: same URL + `.md`) - Developer: [Digital Gemba LLC](https://appshunter.io/developer/1893590941) - Category: Sports, Health & Fitness - Price: Free - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 17.0 · 36 MB - Languages: American English - Released: 2026-04-26 - Data updated: 2026-08-25 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/biketalk-car-back/id6762529649/reviews.md ## What is BikeTalk? "Car back!" The phrase every cyclist knows. The warning yelled down the pace line. The thing you wish you'd heard before that pickup blew past your shoulder. BikeTalk shouts it for you. Pair any Bluetooth cycling radar and BikeTalk speaks approaching vehicles through your headphones. No beeps to decode. No screen to glance at. Just the words riders have been using since forever: "Car back, 80 feet." "2 cars, 60 feet." "Wicked fast!" "Clear." ONE RADAR. EVERY PHONE IN RANGE. This is the part no other app does. • Riding solo? Your radar, your phone, your callouts. • Riding with a partner or in a group? Only one rider needs to own a radar. Every other phone in Bluetooth range hears the same callouts — no pairing between phones, no setup. The rider at the front of the peloton has the radar; everyone behind hears every car. • Add the intercom and you can talk to each other too. BikeTalk listens to the radar's open Bluetooth broadcast — read-only, no configuration, no control. Any phone within range hears it. GROUP INTERCOM When you want to talk to your group, tap the mic or use your headphone's play/pause button. Multiple riders can speak at once — it's a conversation, not a walkie-talkie. Peer-to-peer over Bluetooth and Wi-Fi (the same technology as AirDrop). No cell signal. No account. No server. ~60 metres line-of-sight. Hands-free. Works with AirPods, Shokz, bone conduction, helmet speakers, or any Bluetooth audio. FOR RUNNERS TOO Flip on Running mode and BikeTalk becomes an eyes-free running companion: • Pace instead of speed — on screen, and spoken in your ear as often as you like • Grade-adjusted pace, so a hill at honest effort doesn't read as a lost split • Pair a Stryd or any Bluetooth footpod for pace and cadence • Effort targets: set your heart-rate, power, and pace bands and hear one word when it matters — "push," "ease," "hold." Heart rate is the safety ceiling: blow past it and you'll hear "ease," no matter what the pace says. • Recovery floors keep the coach quiet between intervals Group run? The intercom works on foot exactly like it does on the bike. DESIGNED FOR YOUR POCKET BikeTalk is built to work from your pocket. Drop your phone in your jersey, put on your headphones, and go. Everything important comes through the audio — radar callouts, group chat, heart rate, pace, weather. You don't need to look at your phone. If you do mount your phone on your bars, even better — the screen below is the bonus view. But it's not required. THE COCKPIT The main screen is everything you'd put on a bike computer, sized for glance-able reading at road speed: • Heart rate — pair any standard Bluetooth HR strap • Power and L/R balance — pair any standard Bluetooth power meter • Speed or pace, location, weather, route home • Pass count, duration, start/restart/end controls • Big numbers, dark UI, designed for sunlight and motion Phone on the bars or in your pocket. Either way, you're set. SUPPORTED RADARS Works with standard Bluetooth cycling radar tail lights, including RTL515, RVR315, RCT715, eRTL615, RearVue 820, and Bryton Gardia. CHOOSE YOUR VOICE • Boston Cop (default) — "Wicked fast!" • Boston Woman • Neutral default PRIVACY No account. No sign-up. No tracking. No analytics. No ads. No subscriptions. No in-app purchases. Audio between riders is peer-to-peer and never recorded. Free. Made by a cyclist in Boston who got tired of beeps. SAFETY NOTE This is a backup awareness layer. Always rely on your mirror, head-checks, and head unit display first. Privacy Policy: https://biketalk.app/privacy.html Terms of Use: https://biketalk.app/terms.html ## Key features - Bluetooth radar integration for vehicle alerts - Group intercom for hands-free communication - Running mode with pace and effort targets - Supports HR straps and power meters - Eyes-free operation from pocket or mounted - Works without cell signal or accounts ## Frequently asked questions about BikeTalk ### Does BikeTalk have ads? No, BikeTalk is ad-free. It is a free application designed to provide a seamless experience without interruptions from advertisements. ### How does BikeTalk's group feature work? Only one rider needs a radar; all other phones within Bluetooth range hear the same callouts. The intercom allows multiple riders to speak simultaneously over Bluetooth and Wi-Fi, requiring no cell signal or accounts. ### What devices does BikeTalk support? BikeTalk is currently supported on iPhone. It works with any Bluetooth audio device, including AirPods, Shokz, and helmet speakers. ### Can BikeTalk be used for running? Yes, BikeTalk has a dedicated Running mode. It provides spoken pace, grade-adjusted pace, and effort targets based on heart rate, power, and pace bands. ### What performance metrics can BikeTalk track? BikeTalk can display and speak heart rate (from Bluetooth HR straps), power and L/R balance (from Bluetooth power meters), speed or pace, and cadence (from Bluetooth footpods). ### How often is BikeTalk updated? The latest version of BikeTalk is 1.32, last updated on June 14, 2026. Updates typically include new features and performance improvements. ### What is the range of BikeTalk's group communication? The group intercom feature uses peer-to-peer communication over Bluetooth and Wi-Fi, providing approximately 60 meters of line-of-sight range. ### Is BikeTalk suitable for beginners? Yes, BikeTalk is designed for hands-free operation, allowing users to keep their phone in their pocket and receive all important information through audio alerts and communication. ## Version history (last 5 releases) ### 1.36 — 2026-07-07 • More reliable radar alerts — no false "all clear" if your radar drops out. • Town/street announcements and spoken alerts are steadier on long rides. • Better headphone and sensor (radar/power/HR) reconnection. • Metric unit fixes, "keep screen on" fix, and a rare startup crash resolved. ### 1.35 — 2026-07-03 * Spoken street names. BikeTalk now calls out street names as you turn onto them, so you can keep your eyes on the road and hands on the bars. * Smarter race guidance. Your race now locks onto your actual start surge — the finish-time projection measures from the gun, not from when you pressed Start * More reliable audio. Fixed rare cases where sound could drop after a phone call or Siri, and evened out announcement volume so callouts are clear. * Better sensor pairing. Steadier signal indicators and faster, more dependable reconnection for heart-rate monitors, power meters, and radar. * Ride log & metrics polish. Accurate footpod cadence, safer ride recording, and live weather that updates instantly when you switch units. * Easier setup. Keyboard-free settings with simple pickers and dropdowns. ### 1.32 — 2026-06-14 Running mode is more reliable this release: • Your runs are safe — recordings are never discarded by accident, even if you tap Start or End at the wrong moment. • One-tap start — "Start run" now begins recording and live coaching together, and reconnects your heart rate strap and footpod automatically. • Start-line sensor check — you'll hear what's connected before you go ("Ready. Heart rate. Power."). • Accurate cadence — footpod cadence now reads true steps per minute. • Clearer Run Log — every activity shows its start and end time, with distance in your preferred units. ### 1.31 — 2026-06-12 BikeTalk now runs. RUNNING MODE • Pace instead of speed — on screen, and spoken in your ear as often as you like • Grade-adjusted pace: a hill at honest effort no longer reads as a lost split • Smarter GPS pace that doesn't under-read your intervals • Works with Stryd and any Bluetooth footpod for pace and cadence • Runs save as runs, with Start run / End run controls EFFORT TARGETS — new guidance mode Set your heart-rate, power, and pace bands and hear one word when it matters: "push," "ease," "hold." Heart rate is the safety ceiling and always wins. Recovery floors keep the coach quiet between intervals. ON THE BIKE • Restart and End ride controls right on the main screen • L/R balance is now a glanceable bar — green when balanced, tipped red toward the heavy side when not FIXES • First tap to talk works right after granting mic permission • Riders who leave now drop off the list immediately • More reliable incoming audio in group chat ### 1.30 — 2026-06-01 - Race Guidance (beta) — opt-in spoken coaching that paces you to a target power and heart-rate band with simple "push / ease" cues, plus a projected finish time for your race. Turn it on in Settings → Race Guidance. - Sensor battery levels — see remaining battery for your heart-rate monitor and power meter. - In-app ride export — copy or share your ride data from Diagnostics → Ride Log. Improved - Headphone buttons are more reliable for mute (and starting/stopping a race), including when you connect headphones after opening the app. - Background ride tracking — GPS keeps recording with your phone pocketed and the screen off, so distance and route no longer freeze mid-ride. - Settings reorganized — Operating Mode (Demo / Running / Pro) and Race Guidance now have their own menus. - Power readouts round to the nearest 5 watts; pace and distance follow your Metric/Imperial setting. Fixed - "Alert on" can now be set to None. ## More apps by Digital Gemba LLC - [UnMuck: Photo Intelligence](https://appshunter.io/ios/app/unmuck-photo-intelligence/id6757636900) - [BikeBatt](https://appshunter.io/ios/app/bikebatt/id6762079625) - [BikeBack: Bike Radar Callouts](https://appshunter.io/ios/app/bikeback-bike-radar-callouts/id6763944853) All apps by Digital Gemba LLC: https://appshunter.io/developer/1893590941 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-25.*