Comparison

Metronome Ϟ vs Zero Fret

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Metronome Ϟ

This app offers a highly accurate metronome with visual and audio feedback, along with a practice timer. It features a beautiful design and advanced customization options for musicians. The app also supports background operation and offers various metronome sounds.

Highlights
  • Highly accurate audio and visual feedback
  • Practice timer
  • Visual indication of the beat
  • iPhone LED flash visual feedback
  • 8 metronome sounds
  • Background mode
  • Tap tempo functionality
Features
Read full description

"Simple, useful, and good looking! Love it!" - D. Yang MetroTimer is the most accurate metronome app on the App Store. It provides highly accurate audio and visual feedback, and easy to use timer to track your practice sessions. MetroTimer is also one of the most beautifully designed metronome apps - it was recently featured on Behance! http://bit.ly/YyvU3k MetroTimer has been measured to be more accurate than any other metronome app for iOS. Most app store metronomes are derived from Apple sample code included with the iOS SDK (Software Development Kit). And regretfully, this code fails to account for all the factors that can cause small inaccuracies to build up over time. MetroTimer, created by a software company that specializes in clock time measurement and regulation, is guaranteed to meet laboratory standards for accurate timekeeping. Metronome Highlights: ● Tested with clock time regulation equipment ● Practice timer to track your practice sessions ● Visual indication allows you to "see" the beat ● iPhone LED flash visual feedback support ● 8 metronome sounds including human voice ● Background mode, blends with other audio ● Tap tempo functionality Metronome Pro (in-app purchase) adds these features: ● Custom time signatures ● Accents and subdivisions ● Interactive beat editor ● Presets list

About

Zero Fret

This app provides a visual and haptic guitar and bass tuning experience. It displays string wobble and offers tactile feedback to guide tuning adjustments, supporting a wide range of instruments and custom tunings.

Highlights
  • Visual string wobble indicator
  • Haptic feedback for tuning guidance
  • Support for guitar, bass, ukulele, and more
  • Custom tuning creation and saving
  • Chromatic fallback tuning
  • Adjustable reference pitch
Features
Read full description

Zero Fret is a guitar and bass tuner you can see and feel. Pluck a string and watch it wobble on screen at the rate your string is beating against the right note. Turn the peg and the wobble slows; when it stops, you're in tune. On iPhone, turn on Feel the Beat and the phone taps once per beat in your hand, so you can keep your eyes on the pegs. • Guitar: Standard, Drop D, E-flat, D Standard, DADGAD, Open G, Open D, 7- and 8-string • Bass: 4-, 5- and 6-string • Ukulele (standard, low G, D, baritone), mandolin, mandola, banjo, violin and viola • Your own custom tunings, and favorites for one-tap switching • "Too slack, tighten" and "too tight, ease off": every reading says which way to turn • Chromatic fallback for notes that aren't one of your strings • Adjustable reference pitch, A = 410 to 470 Hz • Feel the Beat and the in-tune tick need a haptic engine: every supported iPhone has one, iPad does not • No accounts, ads, analytics or subscriptions • Works without a network connection • Free and open source: github.com/phall1/zero-fret Audio is processed live on your device. It is never recorded, stored or transmitted. The microphone runs only while Zero Fret is on screen and stops when you leave the app.

Screenshots

Metronome Ϟ3 screens
Zero Fret4 screens

Verdict

The call

The clearest difference is in-app purchases: Zero Fret at none against Metronome Ϟ's 1. Zero Fret also leads on ads (none vs shown) and update cadence (daily vs every 2 months). Metronome Ϟ's advantage is ratings volume (37K vs 1). On price, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Metronome Ϟ sells 1 one-off in-app purchase. Zero Fret asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Zero Fret holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Metronome Ϟ has 37K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Metronome Ϟ ships an update every 2 months, Zero Fret daily. The most recent releases landed on November 10, 2026 and October 31, 2026 respectively.

Scorecard6 real differences · 4 level
Metronome Ϟ versus Zero Fret: the parameters behind the verdict, then further details
ParameterMetronome ϞZero Fret
PriceFreeFree
Rating4.6 (37K ratings)5.0 (1 ratings) — better
Positive reviews79.9% of reviews—
Number of ratings37K — better1
Update frequencyEvery 2 monthsDaily — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size15 MB2 MB
Age rating4+4+
DeveloperONYX AppsPatrick Hall

Customer experience

Metronome Ϟ

All ratings36,843 ratings
Positive91.5%
Neutral3.5%
Negative5.0%
Written reviews946 reviews
Positive79.9%
Neutral7.5%
Negative12.6%

Zero Fret

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Metronome Ϟ

Reported bugs

3 issues
  • Metronome stops unexpectedly
  • Compatibility issues with headphones
  • Tempo adjustments not always consistent

Requested features

4 requests
  • Allow editing of presets
  • Add more time signature options
  • Provide more sound options
  • Ability to set custom practice timers

Zero Fret

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Metronome Ϟ

One-time1
  • MetroTimer Pro$9.99
None

Zero Fret

No in-app purchases

Questions

Is Metronome Ϟ free?
Metronome Ϟ is free to download, with in-app purchases available.
Is Zero Fret free?
Zero Fret is free to download, with no in-app purchases.
Which has better reviews, Metronome Ϟ or Zero Fret?
Zero Fret is rated higher. Metronome Ϟ averages 4.6 out of 5 from 37K ratings, while Zero Fret averages 5.0 from 1 ratings.
Do Metronome Ϟ or Zero Fret have ads?
Metronome Ϟ shows ads; Zero Fret does not.
Which is updated more often, Metronome Ϟ or Zero Fret?
Metronome Ϟ ships an update every 2 months, and Zero Fret daily. Most recently, Metronome Ϟ was updated on November 10, 2026 and Zero Fret on October 31, 2026.

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