# UniTuner Pro vs CentiGrade Visual Tuner

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.

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.

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.

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.

## The numbers

| Metric | UniTuner Pro | CentiGrade Visual Tuner |
| --- | --- | --- |
| Price | $7.99 | **$0.99** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/unituner-pro-chromatic-tuner/id6741528331/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/centigrade-visual-tuner/id6758646319/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | Paid | Paid |
| Best chart rank | **#161** | — |
| Size | 3 MB | 18 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Klaus Fecker](https://appshunter.io/developer/1455227164) | [PHILIP BRADLEY KING](https://appshunter.io/developer/1874172215) |

## What reviewers say

### UniTuner Pro

[App page](https://appshunter.io/ios/app/unituner-pro-chromatic-tuner/id6741528331)

**Currently charting:** #161 Top Paid · Music (US App Store)

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:** Vision Pro support

**In-app purchases:** none


### CentiGrade Visual Tuner

[App page](https://appshunter.io/ios/app/centigrade-visual-tuner/id6758646319)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*