Launching today

TakeOne
Records music practice through Bluetooth perfectly aligned
11 followers
Records music practice through Bluetooth perfectly aligned
11 followers
Bluetooth latency on iOS has been a known problem for years. TakeOne solves it with an Objective Chirp calibration that measures round-trip delay (typically 230-310ms) and aligns playback automatically. 99% first-attempt success rate. What's in 1.1.0: one-tap calibration, aligned playback and M4A export, three-track Layered Takes (Pro), built-in metronome and tuner. Everything runs on-device. No account, no cloud, no uploads. Free to download, Plus and Pro are one-time purchases.




Finally! I've tried recording with GarageBand through Bluetooth and gave up after a few attempts. TakeOne just works — calibrate once and the alignment is spot on. The free tier is generous too, you can actually use it before deciding to upgrade. Well done.
@eugene_eugene7 Thanks, really appreciate you checking it out! The "use it before upgrading" thing was intentional — I wanted the free tier to be genuinely useful, not just a trial that cuts you off mid-session.
One thing that would help me a lot is a "save preset" option for the calibration, since I switch between my AirPods Pro and a pair of Shure SE215s depending on the session. Re-running the chirp each time gets old when the offset is usually nearly identical for the same headphones.
@ezels5ii Great catch — and you're right, that's a gap I've been looking at. Right now the profile is tied to the route fingerprint, not to the specific headphone model, so switching headphones means re-calibrating even if the offset is nearly the same.
I'm planning to add named device presets so you can save a calibration profile per headphone (or per session type) and switch between them without re-running the chirp. I have the schema mapped out — just need to wire it into the UI. Should land in one of the next few updates. Appreciate the real-world feedback, this is exactly the kind of detail that makes the product better.
The on-device approach with zero accounts or uploads is such a rare choice these days, really refreshing to see. Curious how the chirp calibration holds up on older AirPods models too.
@lkereant Thanks! Going fully on-device was a deliberate call — the audio processing doesn't need a server, so adding one would just mean ongoing costs and privacy concerns for no benefit. On the older AirPods question: I've tested on AirPods 2 and first-gen Pros and the calibration works fine — the latency is actually more stable on the older H1 chip than the newer ones in some cases. The main variable is codec negotiation rather than age.
@arkey_liu The guitar teacher use case is one of my favorites — a single teacher recommending it to their students could spread further than any blog post. Glad the layered takes are working for harmony practice, that's exactly the scenario I built it for!
Finally an app that actually fixes the bluetooth lag on my AirPods without making me tweak ten settings. The one-tap calibration took seconds and the audio lined up instantly for tracking vocals.
@aysunparlat Appreciate that! The vocal tracking use case is one I don't hear enough — glad the calibration worked cleanly for it. Let me know if there's anything that would make the Layered Takes workflow smoother for vocals.
curious how the calibration holds up when i switch between different bluetooth devices mid session, do i need to recalibrate each time or does it adapt on the fly?