If you typed "birdie sense" into Google and landed here, here's the short version: BirdieSense and BirdieSwing are two different products from two different companies. BirdieSense is a camera device you set up at the range. BirdieSwing is an iPhone app that analyzes a video of your swing. We make BirdieSwing, and we have no affiliation with BirdieSense. This page exists because a lot of people searching for one end up at the other.
The one-paragraph difference
BirdieSense is a compact dual-camera unit from PathFinder, a sports-AI hardware startup founded in 2024. You place it in front of your hitting area, swing, and it gives voice feedback and swing comparisons through a companion app. It is positioned as an alternative to radar launch monitors, with the cameras also reporting ball data like spin and curvature. It launched through pre-orders and a Kickstarter campaign in 2026.
BirdieSwing is a free iPhone app. You film a ten-second clip of your swing with your phone (face-on or down-the-line), and the app pulls the eight key positions from that clip, scores five phases of the swing against sound fundamentals, and gives you a "feel and fix" note plus one drill. Results come back in under 30 seconds. There is no hardware and nothing to set up beyond propping your phone up.
Side by side
| BirdieSwing | BirdieSense | |
|---|---|---|
| What it is | iPhone app | Camera device + companion app |
| What you need | Your phone | The BirdieSense unit, a hitting area, your phone |
| How it works | AI reads a short video of your swing | Onboard cameras and an AI chip watch you swing live |
| What you get | Score per swing phase, overall score, strengths, faults, one recommended drill, tempo ratio | Voice feedback, swing comparisons, plus ball-flight numbers |
| Where it works | Anywhere you can film: range, backyard, indoor net, or an old clip in your camera roll | Wherever you set the unit up |
| Cost | Free to start; optional Premium subscription | Hardware purchase (Kickstarter / pre-order pricing on their site) |
| Ball data (spin, launch, curvature) | No | Yes |
| Swing-technique feedback | Yes, that is the whole product | Yes, alongside ball data |
| Platform | iOS | Companion app; check their site for platforms |
Who each one is for
Pick BirdieSense if you want launch-monitor style numbers (ball speed, spin, curvature) and swing feedback, you practice mostly in one place where a device can live, and you're comfortable buying hardware from a young company through a crowdfunding campaign.
Pick BirdieSwing if you want to know why you slice or lose distance and what to do about it, you'd rather not carry a device, you want to analyze swings you've already recorded, or you just want to try AI swing analysis for free before spending anything.
Plenty of golfers could reasonably use both: a launch monitor tells you what the ball did; a technique analyzer tells you what your body did to cause it.
What BirdieSwing actually measures
Because this page gets a lot of first-time visitors, here's what "AI swing analysis" means in our case, without the marketing:
- Frame extraction. The app uses audio, motion, and pose signals to find impact, then selects the eight positions that matter, from setup through finish.
- Phase scoring. Those frames are graded across five phases (setup, backswing, transition, impact, follow-through) using Claude's vision model, with criteria that change depending on the club you selected.
- The verdict. You get an overall score, the strongest and weakest phase, a "feel and fix" cue written in plain language, and one drill. One, not twelve. The point is to give you something to do on your next swing.
- Tracking. Every analysis is saved so you can see whether the score is moving.
If you want to know how that stacks up against other apps, we wrote an honest comparison: the best AI golf swing analyzer apps in 2026.