Metron (Pro Metronome) vs metrOnly
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Metron (Pro Metronome)
This app provides an accurate and versatile metronome for musicians of all levels. It offers advanced features like polyrhythms, tempo variations, and a notation-based sequencer for complex rhythmic patterns. Practice runs, excerpts, and compositions with detailed control over tempo and time signatures.
- Polyrhythms (two voices)
- Notation-based sequencer
- Accelerando and ritardando
- Tap-pad tempo setting
- Customizable time signatures
- Pitch pipe
- Setlist control
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Featured as "New and Noteworthy" by Apple in March 2010, Metron is a popular and accurate metronome which has received great acclaim from amateurs and professionals alike. The brainchild of a classically trained musician, Metron aids in the practice of runs, excerpts and complete compositions. Featuring an intuitive front panel, you can launch and start practicing instantly, like with any basic metronome. A back panel provides single tap access to an ample variety of commonly used time signatures, and allows you to define new or edit existing sequences, with full access to its powerful and unique features (Pro). Metron offers mixed time signatures with beat grouping, tempo scaling and dynamic accellerando and ritardando through a high precision playback engine. A notation based sequencer offers detailed control over tempo, time signature changes, rhythmic patterns with tuplets, individual beat sounds, volume control and more. You can even play two voices at once, so you can hear three against two or five against four, or more complicated polyrhythms. A first run walkthrough helps you get oriented quickly and a comprehensive user manual is available. Free to download and use, with a one-time Metron Pro unlock for the more advanced features; pre 4.0 customers keep full access. Features in detail: Metronome: • Portrait and landscape mode. • Tempo from 1 to 999 Beats Per Minute nominally (effectively between 0.25 and 1998 bpm). • Option to change tempo by traditional increments. • Accelerando and ritardando ("Variance"). • Tempo scaling. (Handy for elaborate sequences.) • Polyrhythms (two voices at once). • Specify a factor between one quarter (0.25) and double (2.0) the current tempo. (Useful when practicing sequences which contain tempo settings.) • Tap-pad to set the metronome tempo by tapping with a finger. • Accuracy: Samples are laid down just-in-time with absolute accuracy. • Maintains accuracy when the screen is locked. • Setlist control. • Optionally allow Metron to keep playing when switching to the background. • Record Metron sessions to audio files and share the recordings or the sequences themselves. • Export MIDI tempo tracks — take your practice tempo map straight into a DAW • Navigate long sequences through rehearsal numbers. Sequencer: • Create your own library with any number of sequences. A set with the most commonly used time signatures is included by default. • Create sequences with any number of bars. (Each bar can have its own simple or complex time signature. Mix metres and tempi freely. Have accents on any beat you wish.) • Each sequence can set a countdown, and also whether the metronome stops at the end of the sequence or continuously repeats the sequence. You can also choose to have the countdown repeated with every repeat of the sequence. • Each bar consists of one or more time signatures and can set tempi and accelerando or ritardando on any beat. • A time signature can have between 1 and 64 beats over a dotted or undotted denominator. • A time signature can be subdivided into beat groups, allowing you to set an accent on any beat you wish, since grouping beats affects metronome playback. Metron differentiates between the first beat, stressed beats and unstressed beats, so you always know where in the bar you are. • Freely enter notes into bars to create rhythm patterns (like triplets or swing, or most any pattern you like). You can assign a custom color, sound and volume to any beat or any rhythmic component of a beat. You are in control. You can keep it as simple as you like, or make it as intricate as you need. • Editing is done in a single staff score, with room for two voices, using traditional western music notation. You can either drag and drop elements into the score or become even faster using the cursor based insert mode (with optional keyboard entry support). Pitch Pipe: • Metronome includes a pitch pipe, that helps you tune your instrument. Easily choose any pitch within 9 octaves.
metrOnly
This metronome app provides perfectly timed clicks without distracting features like accents or blinking lights. It offers tempo adjustments from 10-500 bpm and includes accessibility options for ease of use. Designed for focused practice, it aims to be a simple and effective tool for musicians.
- Perfectly timed clicks
- No distracting features
- Tempo range 10-500 bpm
- Intuitive tempo adjustment
- Accessibility options
- Customization features
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A metronome for musicians who hear better when the screen is quiet. metrOnly gives you precise time without accents, flashing lights, time signatures, or menus competing for your attention. Drag anywhere to change tempo from 10 to 500 BPM. Feel each number click into place. Tap the tempo to enter an exact value. Press one button to start. Choose from 19 carefully prepared click sounds, including woodblocks, sticks, rims, hats, snaps, and percussion. Set an optional practice timer, keep the click running in the background, and focus on the music. No clutter. Just time. New users need an auto-renewing subscription after onboarding. Weekly, monthly, and annual plans are available. Eligible customers can try the annual plan free for 7 days. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends. Manage or cancel your subscription in Apple Account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.sprinworld.com/privacy
Screenshots
Verdict
The clearest difference is rating: metrOnly at 4.0 against Metron (Pro Metronome)'s 3.5. metrOnly also leads on in-app purchases (none vs 1). Metron (Pro Metronome)'s advantage is update cadence (every 3 months vs every 20 months) and ratings volume (13 vs 4). On price, ads, monetization model and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Metron (Pro Metronome) sells 1 one-off in-app purchase. metrOnly asks for nothing beyond the download.
metrOnly holds the better App Store score, 4.0 against 3.5. Both are backed by a comparable volume of ratings — 13 and 4 respectively.
Metron (Pro Metronome) ships an update every 3 months, metrOnly every 20 months. The most recent releases landed on October 31, 2026 and November 3, 2026 respectively.
| Parameter | Metron (Pro Metronome) | metrOnly |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (13 ratings) | 4.0 (4 ratings) — better |
| Positive reviews | 74.6% of reviews | — |
| Number of ratings | 13 — better | 4 |
| Update frequency | Every 3 months — better | Every 20 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 17 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Antonio Nunes | Austin Danson |
Customer experience
Metron (Pro Metronome)
metrOnly
Bugs and requests
Metron (Pro Metronome)
Reported bugs
11 issues- App crashes frequently
- Inability to restore previous purchases after an update
- Clicks don't work
- Makes hideous electronic squeals and awful digital drones
- Sequencer issues with certain time signatures (e.g., 6/8)
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- Settings change on their own
- Tap feature is flaky
- Crashes when adding a new sequence
- Beat indicators not functioning correctly
- App freezes or goes blank after programming
- Inbuilt tuner has problems with note detection
Requested features
14 requests- Website or video with detailed instructions for complex sequences
- UI overhaul with larger tap targets
- Gesture recognition for controls
- Ability to export MIDI tempo tracks
- Add a feature to show the current bar of the sequence
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- Update web videos to match current interface
- Implement setlists
- Allow editing more than one beat at a time
- Allow metronome to play two voices simultaneously
- Improve pitch pipe functionality
- Add tap to tempo feature
- Increase maximum BPM beyond 220
- Dark mode option
- Improve visual design
metrOnly
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Metron (Pro Metronome)
- Metron Pro$17.99
metrOnly
No in-app purchases
Questions
Is Metron (Pro Metronome) free?
Is metrOnly free?
Which has better reviews, Metron (Pro Metronome) or metrOnly?
Do Metron (Pro Metronome) or metrOnly have ads?
Which is updated more often, Metron (Pro Metronome) or metrOnly?
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