Comparison

UniTuner Pro vs CentiGrade Visual Tuner

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

Head to head
About

UniTuner Pro

This advanced chromatic tuner offers 1/10th cent accuracy with visual feedback and a tone generator. It supports over 200 string instrument tunings, custom tunings, and various tuning systems. Visualize pitch, harmonics, and overtones for precise instrument tuning.

Highlights
  • 1/10th cent accuracy
  • Tone generator with multiple waveforms
  • Over 200 instrument tunings
  • Custom tuning creation
  • Audio visualization (spectrogram)
  • Intonation diagram (tuning map)
Features
Currently charting
Read full description

Features: - Customizable User Interface: Pick your favorite readout method in landscape or portrait mode. - App supports dark and light mode. - Recognized note shown in classical notation - Accurate Cent Readout with Direct Feedback: No more guessing! Get precise 1/10th cent accuracy from bass to the highest note. - Tone Generator: Tune your drums or instrument by ear using the tone generator, which includes Sine-Wave, Triangle, and Square-Wave options. - Timeline: Visualize the pitch in cents of the detected note. - Audio Visualization (Spectrogram): View your instrument's harmonic spectrum for better understanding the overtones. Intonation Diagram (Tuning Map): Display of the note with all overtones! This unique feature visualizes a note’s pitch over time—from the initial attack to the final decay. Perfect for instruments with short sustain, such as percussion instruments. - Customizable Concert Pitch: Set your concert pitch from 220 Hz to 880 Hz. - Over 200 Tunings for String Instruments, including: Ahenk, Armonico, Arpeggione, Bağlama / Saz - long neck, Baglamas, Bajo Quinto, Bajo Sexto, Balalaika, Bandurria - Spanish, Banjo, Banjo - Bass, Banjo - Cello, Banjo - Contrabass, Banjo - Tenor, Banjolete, Bass (Doublebass), Bouzouki (trichordo), Bouzouki (tetrachordo), Cello, Cuban Laúd, Dotara, Dulcimer - 3 course, Dulcimer - 4 course, Fiddle, Gekkin, Guitalete, Guitar, Guitar - 12-String, Guitar - Baritone, Guitarrón, Halszither, Hurdy Gurdy, Irish Bouzouki, Jarana Huasteca, Kamancheh, Kithara Sarda, Kora, Koto, Laúd - Spanish, Laúd - Cuban, Laúd - Philippine, Mandobass - 4 String, Mandobass - 8 String, Mandocello, Mandola, Mandolin, Nevoud, Oud, Pedal Steel Guitar, Pipa, Portuguese Guitar, Qinqin, Requinto, Russian Guitar, Setar, Ukulele, Ukulele - Baritone, Ukulele - Bass, Ukulele - Soprano, Vihuela, Viol (Baritone, Bass, Contrabass, Soprano, Tenor, Treble), Viola, Violin, Violin - Tenor, Xiaoruan, Yueqin, Zheng - You can also create and store your own custom tunings and instruments. - "Perfect 5th" tuning for: Violin, Viola, Cello, Double bass. - Transpose: The output can be shifted by a specified number of semitones - Note names: English, German, Japanese, Korean, Chinese, Russian, Greek, Bengali, Hindustani, Fixed & Movable Solfège - Choose from Various Tuning Systems for Open Tunings or Historical Instruments: Just Intonation, Pythagorean, Meantone, and many more. - You can also create and store your own custom temperaments. - Enhance your open tunings with Just Intonation: Experience the unique sound quality of pure tuning by setting the UniTuner to Just Intonation and the root note of your tuning

About

CentiGrade Visual Tuner

This app provides instant, ad-free tuning with a unique rolling trace feature for pitch practice. Its interface dynamically zooms as you approach the target note, offering multiple visual modes and presets for various instruments.

Highlights
  • Instant tuning on launch
  • Rolling trace for pitch history
  • Dynamic zoom interface
  • Fluid wave visualizer
  • Chromatic, Guitar, Bass presets
Features
Read full description

No Ads: Instant tuning as soon as you open the app. Rolling Trace: See a historical line of your pitch for perfect intonation practice. Dynamic Zoom: The interface adapts as you get closer to your target note. Multiple Modes: Toggle between a fluid wave visualizer and the rolling history roll. Presets: Support for Chromatic, Guitar, and Bass tuning.

Screenshots

UniTuner Pro4 screens
CentiGrade Visual Tuner4 screens

Verdict

The call

The clearest difference is price: CentiGrade Visual Tuner at $0.99 against UniTuner Pro's $7.99. CentiGrade Visual Tuner also leads on update cadence (every 4 days vs fortnightly) and iOS requirement (13.0 vs 15.6). UniTuner Pro's advantage is chart position (#161 vs unranked). On rating, ratings volume, 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

UniTuner Pro costs $7.99 and CentiGrade Visual Tuner $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for UniTuner Pro against 5.0 for CentiGrade Visual Tuner. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

UniTuner Pro ships an update fortnightly, CentiGrade Visual Tuner every 4 days. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 7 level
UniTuner Pro versus CentiGrade Visual Tuner: the parameters behind the verdict, then further details
ParameterUniTuner ProCentiGrade Visual Tuner
Price$7.99$0.99 — better
Rating5.0 (1 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings11
Update frequencyFortnightlyEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank#161 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size3 MB18 MB
Age rating4+4+
DeveloperKlaus FeckerPHILIP BRADLEY KING

Customer experience

UniTuner Pro

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

CentiGrade Visual Tuner

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

In-app purchases

None

UniTuner Pro

No in-app purchases

None

CentiGrade Visual Tuner

No in-app purchases

Questions

Is UniTuner Pro free?
UniTuner Pro costs $7.99, with no in-app purchases.
Is CentiGrade Visual Tuner free?
CentiGrade Visual Tuner costs $0.99, with no in-app purchases.
Which has better reviews, UniTuner Pro or CentiGrade Visual Tuner?
UniTuner Pro and CentiGrade Visual Tuner are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do UniTuner Pro or CentiGrade Visual Tuner have ads?
Neither UniTuner Pro nor CentiGrade Visual Tuner shows ads.
Which is updated more often, UniTuner Pro or CentiGrade Visual Tuner?
UniTuner Pro ships an update fortnightly, and CentiGrade Visual Tuner every 4 days. Most recently, UniTuner Pro was updated on October 30, 2026 and CentiGrade Visual Tuner on October 25, 2026.

Other comparisons