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BeatMirror: Track BPM

BeatMirror: Track BPM

Tempo detector for musicians

251 ratings
45 reviews
#196 in paid Music
📚 Education
🎵 Music
$6.99

Details

  • Released
  • Updated
  • June 12, 2017
  • April 15, 2025

Developer

Ten Kettles Inc.
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BeatMirror: Track BPM screenshot #1 for iPhone
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BeatMirror: Track BPM screenshot #8 for iPhone
iphone
ipad
📉no. 196
Charts↘︎
⭐45
Reviews↘︎
📝1+ tags
Tags↘︎
🔄6+ apps
Alternatives↘︎
❓5 answered
FAQ↘︎
📦w/o updates
Updates frequency↘︎
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About

This app uses your device's microphone to detect and display musical tempo in real-time. It provides a scrollable graph of your tempo history, helping musicians improve their rhythm and internal clock. Features include a wide tempo range, flexible accuracy across time signatures, and visual feedback for tempo drift.

✓Real-time tempo detection
✓Scrollable tempo history graph
✓Wide tempo range (35-220 bpm)
✓Flexible accuracy across time signatures and rhythms
✓Visual feedback for tempo drift
✓Customizable zoom features
✓Tempo keyboard with tap pad
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What's New in BeatMirror

3.0.0

April 15, 2025

We've got a big update for you today. It's been months in the making, and today we are very happy to announce BeatMirror's brand new Range mode! It's the same BeatMirror you know and love, but now you have the option to set a nice big tempo range (instead of a target tempo) and start detecting tempo right away. The new Range mode also has a special triplet option for high accuracy in triplet-time. (You'll get a mini-walkthrough when you update the app.) Finally, we've added the ability to listen to whatever you like in your headphones during tempo detection (music from other apps, metronomes, etc.). I hope you like the new update. And as always, I'd love to hear any feedback you have. Just tap the envelope icon in BeatMirror to get in touch and I'll get back to you ASAP. -Alex

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Charts

Top Paid

📉 196-31

Music

This app dropped -31 positions in Music chart.

Last updated on August 12, 2026.

User reviews

Most RecentHighest RatedLowest Rated

Pretty Nice!

As a songwriter this is a cool app. Gets you in the ballpark of bpm real fast. I usually have to adjust logic drummer just a smidge but not much. Very useful in a creative sense!
JDCo81201JDCo81201

Easy to use

Just open the app and play
RWEmersonlake&PalmerRWEmersonlake&Palmer

Fantastic drumming tool

This app is a game changer wish I’d had it years ago, I can’t recommend it enough to any drummers, my band mates love it too. Thx for creating it 👍
Favoured WestsideFavoured Westside

Accurate for Guitar?

I'm trying to use this to get faster at playing guitar and I'm comparing it to my metronome. The beat detection (for me bpm of picking speed) seems inaccurate. Anyone have success with this or suggestions? I'd love for this to work, would be a great tool.
MloggiaMloggia

Response from developer

Hey, thanks for reaching out. Once your range (or target tempo) is set OK, you should expect pretty solid performance for guitar. You can catch a demo of the app with guitar at https://www.youtube.com/watch?v=ploxwvF4f5I, or a deeper dive into the newer version at https://www.youtube.com/watch?v=fTaQXTddOp4. You're also welcome to reach out anytime at tenkettles.com/contact, and I'd be happy to help with troubleshooting. -Alex

Hot Phone

Used for about 90 minutes while practicing with my ensemble and my iPhone 15 pro was hot to the touch when we were done. Don’t know how hot but uncomfortably warm. Didn’t check battery drain.
HammerddHammerdd
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FAQ

What does BeatMirror do?

BeatMirror uses your device's microphone to detect musical tempo in real-time. It displays a scrollable graph of your tempo history, helping you build your internal rhythm and identify when you're speeding up or slowing down. It's designed to assist musicians in improving their timing and accuracy.

What are the key features of BeatMirror?

Key features include real-time tempo detection across a wide range (35-220 bpm), a scrollable graph of tempo history, flexible accuracy for various time signatures and rhythm styles, visual feedback for tempo drift, customizable zoom, and a tempo keyboard with a tap pad for setting target tempos.

Is BeatMirror free to use?

Yes, BeatMirror is a free application. Based on the provided information, there are no mentioned costs, in-app purchases, or advertisements associated with its use.

What devices is BeatMirror compatible with?

The application utilizes the device's built-in microphone for tempo detection. While specific operating system versions are not detailed, it is designed for mobile devices (phones and tablets) that can run such applications and have a functioning microphone.

How can BeatMirror help musicians?

BeatMirror helps musicians by providing real-time feedback on their tempo, allowing them to practice staying on beat and develop a more consistent internal clock. It's useful for solo practice, band rehearsals, analyzing recorded music, and even during live performances to monitor timing.