Comparison

Cleartune vs Amazing Slow Downer

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

Head to head
About

Cleartune

This app provides precise chromatic tuning for a wide range of instruments using your device's microphone. It features a unique note wheel interface and a responsive fine-tuning meter for accurate pitch detection. Advanced options include custom temperaments, transposition, and adjustable calibration for professional use.

Highlights
  • Chromatic instrument tuning
  • Note wheel interface
  • Responsive fine-tuning meter
  • Support for custom temperaments
  • Transposition support
  • Pitch pipe/tone generator
  • High accuracy (±0.01 semitone)
Features
Read full description

"My most indispensable app is my guitar tuner, Cleartune. None of the old visual or analog tuners are as precise. I've even taken it on stage with me!" - Rosanne Cash "Cleartune and Clockwork are my most used apps." - Ezra Oklan (Nicole Atkins, Norah Jones, Antibalas Afrobeat Orchestra, Matt Beck (Matchbox 20), Chico Hamilton, Arnie Lawrence) "I've been having trouble with interference on stage with other tuners for the iPhone. Used Cleartune last night before a gig and had no problems with stage noise. Excellent tuner for bass." - Rob Calder (Kanye West, Angus and Julia Stone, The Break and Repair Method, Ghostface Killah) Used in the making of the Gorillaz album "The Fall" Follow us on Facebook at www.facebook.com/cleartune ----------------------------------- • Featured in Electronic Musician, Matchbox Mag, Making Music Mag, Premiere Guitar, MacWorld, Apple Staff Picks, Worship Leader Mag, Acoustic Guitar • Spotted in use backstage by The Black Keys, C.W. Stone King (www.va.ryanpolei.com), Grammy Nominee Sones de México (gearwire.com) ----------------------------------- Cleartune is a chromatic instrument tuner and pitch pipe that allows you to quickly and accurately tune your instrument using the built-in mic in your device. Cleartune features a unique "note wheel" interface allowing you to quickly find your pitch, paired with a highly responsive fine-tuning meter for the perfect tune. With support for custom temperaments, transposition, notations such as solfège, and adjustable calibration, Cleartune packs more power than most pro tuners, yet is simple enough for everyone to use. Cleartune can tune acoustic or electric guitar, bass, bowed strings, woodwinds, brass, piano, tympani and any other instrument that can sustain a tone. Most electronic tuners cannot properly tune a violin. With a built in temperament for violin family instruments, Cleartune will have the 5ths singing perfectly. Features: - Note Wheel Display - Ultra responsive 25 cent range fine tuning display - Needle Damping option - Accuracy ±0.01 semitone (±1 cent) - Selectable Temperaments - Selectable Notations (such as Solfège) - User-defined temperament and notations - Support for transposing instruments - Automatic reference note calibration - Adjustable A4 calibration in 0.1 Hz increment - Pitch Pipe/Tone generator - Selectable tone waveform - Automatic or manual note selection

About

Amazing Slow Downer

Learn songs and techniques by slowing down music without altering pitch. Adjust playback speed, change tuning, and create seamless loops. Ideal for musicians, transcribers, and dancers.

Highlights
  • Adjust playback speed (25%-200%)
  • Change pitch without distortion
  • Create seamless loops
  • Support for Apple Music streaming
  • Change tuning and musical key
Features
Read full description

If you're a musician who likes to learn new songs and techniques by listening to the same piece of music over and over but wish that the music could be played a little slower, then you'll enjoy Amazing Slow Downer. You can repeat any section of the music at full speed, slow it down or even speed it up by changing the speed between 25% (1/4 of original speed) and 200% (double speed) without changing the pitch! Change the tuning or musical key? No problem, Amazing Slow Downer handles that as well. Setup seamless loops by touching the "Set" buttons during playback. Amazing Slow Downer is the ideal tool for any musician, transcriber or dancer wanting to improve their skills. New - Support for streaming "Apple Music" audio! Note: Some functions such as "Pitch change" and "Equalizer" are not available when playing "Apple Music" songs. Please note: According to Spotify, third party apps will not any longer have access to streaming Spotify content in a way that works for slowing down / pitch change audio starting September 1, 2022. This will affect Amazing Slow Downer. This means that you should NOT buy Amazing Slow Downer if playing Spotify content is your only use of the app. This change does NOT affect any other type of audio content that Amazing Slow Downer can play back.

Screenshots

Cleartune2 screens
Amazing Slow Downer4 screens

Verdict

The call

The clearest difference is price: Cleartune at $3.99 against Amazing Slow Downer's $14.99. Cleartune also leads on iOS requirement (9.0 vs 16.0). Amazing Slow Downer's advantage is rating (3.9 vs 3.7) and review sentiment (69% vs 60%). On ratings volume, update cadence, ads and in-app purchases 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

Cleartune costs $3.99 and Amazing Slow Downer $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Amazing Slow Downer holds the better App Store score, 3.9 against 3.7. Both are backed by a comparable volume of ratings — 885 and 462 respectively. Written reviews point the same way: 60% of Cleartune's written reviews are positive against 69% of Amazing Slow Downer's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. Both last shipped on November 10, 2026.

Scorecard4 real differences · 7 level
Cleartune versus Amazing Slow Downer: the parameters behind the verdict, then further details
ParameterCleartuneAmazing Slow Downer
Price$3.99 — better$14.99
Rating3.7 (885 ratings)3.9 (462 ratings) — better
Positive reviews59.9% of reviews68.6% of reviews — better
Number of ratings885 — better462
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank#18 — better#24
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.0 — better16.0
Further details — not scored
Size8 MB6 MB
Age rating4++4
DeveloperBitcount ltd.Roni Music

Customer experience

Cleartune

All ratings880 ratings
Positive63.2%
Neutral9.0%
Negative27.8%
Written reviews922 reviews
Positive59.9%
Neutral9.2%
Negative30.9%

Amazing Slow Downer

All ratings460 ratings
Positive71.7%
Neutral7.4%
Negative20.9%
Written reviews366 reviews
Positive68.6%
Neutral7.9%
Negative23.5%

User reviews

Cleartune

From 885 App Store ratings

What we love

  • 🚀 Accurate and sensitive
  • 👍 Elegant and intuitive interface
  • 🎨 Supports custom temperaments
  • 💡 Useful for tuning various instruments

Room to improve

  • 🐛 Freezes or becomes unresponsive
  • 🐛 Fails to detect certain notes or frequencies
  • 🔋 Drains battery quickly
  • 🔍 Struggles with background noise

Amazing Slow Downer

From 462 App Store ratings

What we love

  • 🚀 Excellent for learning songs
  • 👍 Great for transcribing and practicing
  • 🎶 Allows slowing down and looping songs
  • 💡 Useful for language learning
  • 👍 Intuitive and easy to use

Room to improve

  • 🐛 Occasional bugs and crashes
  • 🔌 Compatibility issues with Apple Music
  • 💰 Considered expensive by some
  • 🔍 Difficulty setting precise loop points
  • 🔇 No volume control independent of device

Bugs and requests

Cleartune

Reported bugs

3 issues
  • Incompatible with newer iOS versions
  • Needle movement is erratic or jumpy
  • Pitch pipe feature not working

Requested features

3 requests
  • Add Apple Watch support
  • Improve noise cancellation and sensitivity
  • Restore previous functionality (e.g. locked pitch wheel)

Amazing Slow Downer

Reported bugs

3 issues
  • Playback freezing or not working as expected
  • Inability to access purchased songs from iTunes library
  • Connectivity issues when trying to use with Spotify

Requested features

5 requests
  • Add ability to record and import voice memos
  • Improve library management and organization
  • Implement Audiobus support for looping in other apps
  • Add more precise speed and pitch adjustment controls
  • Provide option to display waveform for better visualization

In-app purchases

None

Cleartune

No in-app purchases

None

Amazing Slow Downer

No in-app purchases

Questions

Is Cleartune free?
Cleartune costs $3.99, with no in-app purchases.
Is Amazing Slow Downer free?
Amazing Slow Downer costs $14.99, with no in-app purchases.
Which has better reviews, Cleartune or Amazing Slow Downer?
Amazing Slow Downer is rated higher. Cleartune averages 3.7 out of 5 from 885 ratings, while Amazing Slow Downer averages 3.9 from 462 ratings.
Do Cleartune or Amazing Slow Downer have ads?
Neither Cleartune nor Amazing Slow Downer shows ads.
Which is updated more often, Cleartune or Amazing Slow Downer?
Cleartune ships an update every 2 months, and Amazing Slow Downer every 2 months. Most recently, Cleartune was updated on November 10, 2026 and Amazing Slow Downer on November 10, 2026.
Which is more popular, Cleartune or Amazing Slow Downer?
Cleartune currently peaks at #18 in the App Store charts, and Amazing Slow Downer at #24. Chart position reflects recent download velocity rather than total install base.

Other comparisons