CarlTune vs Tuning Fork Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Chromatic tuning
- Pitch and frequency display
- Cent value adjustment
- Multiple instrument tunings
- Custom tuning options
- Pitch pipe with keyboard interface
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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).
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.
- 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
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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
Verdict
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
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.
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.
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.
| Parameter | CarlTune | Tuning Fork Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (62 ratings) — better | 4.3 (35 ratings) |
| Positive reviews | 67.6% of reviews — better | 46.2% of reviews |
| Number of ratings | 62 — better | 35 |
| Update frequency | Every 8 days — better | Every 2 weeks |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 8 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | JUNG IL PARK | Pedro Daniel Macalupu Cumpen |
Customer experience
CarlTune
Tuning Fork Pro
In-app purchases
CarlTune
- Remove ads$3.99
Tuning Fork Pro
- Remove ads$2.99
- A4 Calibration & Harmonics$3.99








