Comparison

CarlTune vs Tuning Fork Pro

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

Head to head
About

CarlTune

This app analyzes sounds from your microphone to display pitch, frequency, and octave. It offers intuitive graphical interfaces and supports a wide range of instruments and custom tunings for precise tuning.

Highlights
  • Chromatic tuning
  • Pitch and frequency display
  • Cent value adjustment
  • Multiple instrument tunings
  • Custom tuning options
  • Pitch pipe with keyboard interface
Features
Read full description

This is a chromatic tuner that captures the sound coming into the microphone, analyzes it, and displays the pitch. It shows the frequency and octave of the analyzed pitch, and the difference (cent value) from the standard pitch at the same time, allowing you to know the current pitch more specifically and quickly. In addition, graphical interfaces such as analog clocks provide more intuitive and multi-dimensional information. ▶Main features: ● Colors : You can select almost any color. ● Notation : Supports US, Europe, Korea, Thailand, Japan, and India. ● Rotation : Supports landscape mode and portrait mode screen. ● Hit range : You can fine-tune by adjusting ±Cent value from the standard pitch. ● Tunings: Provides various instruments and custom tuning interfaces. 6 String Guitar (Standard, Standard D, Drop D, Double Drop D, EAEGBE, Open D, Open E, Open Dmaj7, Open Emaj7, Open D7, Open E7, Open D6, Open E6, Open D minor, Open E minor, Open G, Open A, Open Gmaj7, Open C, Open A minor, Dad Gad, Papa Papa), 4-string bass guitar, 6-string bass guitar, ukulele, violin, viola, cello, double bass, mandolin, mandola, Guitarelle In addition, the default chromatic interface can be used for almost all instruments such as flute, kalimba, daegeum, gayageum, and vocal practice. ● Pitch pipe : Produces a mathematically accurately calculated frequency tone. Also, the piano keyboard interface and standard frequency values ​​can help you understand sounds and music. ● Visibility : You can adjust the graphic interface aspect ratio to fit the aspect ratio of the device screen. ● Transposition, concert pitch : You can change the most well-known tuning standard A4=440Hz. It also provides a transposition function for transposing instruments such as the clarinet, trumpet and saxophone. ● All features are free, including ads. ● You can remove ads by making in-app payment (paid purchase).

About

Tuning Fork Pro

This app helps musicians tune their instruments by ear using precise tone generation. It offers a wide range of notes and calibration options with various waveform selections. The app is designed for ease of use and compatibility with external audio devices.

Highlights
  • Note generation from A1 to C7
  • A4 Calibration (415Hz to 466Hz)
  • Sine, Square, Triangle, Sawtooth waveforms
  • Output volume control
  • Precise tone emission algorithm
  • External speaker compatibility
Features
Read full description

Tune your musical instruments by ear with precision and ease! · Generate notes from A1 to C7 in 4 different waveforms · A4 Calibration from 415Hz to 466Hz · Sine, Square, Triangle and Sawtooth waveforms · Output volume setting · Instant load and most precise algorithm for tone emission. · Compatible with external speakers · 64-bit Universal app, works with iPhone, iPad and iPod touch!

Screenshots

CarlTune4 screens
Tuning Fork Pro2 screens

Verdict

The call

CarlTune and Tuning Fork Pro both sit at 4.3 stars, but that hides the real split: 68% of CarlTune's written reviews are positive against 46% of Tuning Fork Pro's. CarlTune also leads on monetization model (free with in-app purchases vs paid) and update cadence (every 8 days vs every 2 weeks). On price, rating, ratings volume and ads 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. CarlTune sells 1 one-off in-app purchase and Tuning Fork Pro sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.3 for CarlTune against 4.3 for Tuning Fork Pro. Both are backed by a comparable volume of ratings — 62 and 35 respectively. Written reviews are what separate them: 68% of CarlTune's written reviews are positive against 46% of Tuning Fork Pro's.

UpkeepUpdate frequency

CarlTune ships an update every 8 days, Tuning Fork Pro every 2 weeks. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard4 real differences · 6 level
CarlTune versus Tuning Fork Pro: the parameters behind the verdict, then further details
ParameterCarlTuneTuning Fork Pro
PriceFreeFree
Rating4.3 (62 ratings) — better4.3 (35 ratings)
Positive reviews67.6% of reviews — better46.2% of reviews
Number of ratings62 — better35
Update frequencyEvery 8 days — betterEvery 2 weeks
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.6
Further details — not scored
Size8 MB11 MB
Age rating4+4+
DeveloperJUNG IL PARKPedro Daniel Macalupu Cumpen

Customer experience

CarlTune

All ratings62 ratings
Positive82.3%
Neutral6.5%
Negative11.3%
Written reviews37 reviews
Positive67.6%
Neutral8.1%
Negative24.3%

Tuning Fork Pro

All ratings35 ratings
Positive82.9%
Neutral2.9%
Negative14.3%
Written reviews13 reviews
Positive46.2%
Neutral15.4%
Negative38.5%

In-app purchases

1 purchases

CarlTune

One-time1
  • Remove ads$3.99
2 purchases

Tuning Fork Pro

One-time2
  • Remove ads$2.99
  • A4 Calibration & Harmonics$3.99

Questions

Is CarlTune free?
CarlTune is free to download, with in-app purchases available.
Is Tuning Fork Pro free?
Tuning Fork Pro is free to download, with in-app purchases available.
Which has better reviews, CarlTune or Tuning Fork Pro?
CarlTune is rated higher. CarlTune averages 4.3 out of 5 from 62 ratings, while Tuning Fork Pro averages 4.3 from 35 ratings.
Do CarlTune or Tuning Fork Pro have ads?
Both CarlTune and Tuning Fork Pro show ads.
Which is updated more often, CarlTune or Tuning Fork Pro?
CarlTune ships an update every 8 days, and Tuning Fork Pro every 2 weeks. Most recently, CarlTune was updated on November 1, 2026 and Tuning Fork Pro on November 2, 2026.

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