# CentiGrade Visual Tuner vs Tone Gen Studio

The clearest difference is update cadence: CentiGrade Visual Tuner at every 4 days against Tone Gen Studio's every 6 weeks. CentiGrade Visual Tuner also leads on iOS requirement (13.0 vs 18.6). On price, rating, ratings volume and ads there is nothing between them.

CentiGrade Visual Tuner costs $0.99 and Tone Gen Studio $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 CentiGrade Visual Tuner against 5.0 for Tone Gen Studio. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

CentiGrade Visual Tuner ships an update every 4 days, Tone Gen Studio every 6 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | CentiGrade Visual Tuner | Tone Gen Studio |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/centigrade-visual-tuner/id6758646319/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/tone-gen-studio/id6758694837/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 6 weeks |
| Monetization | Paid | Paid |
| Size | 18 MB | 5 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [PHILIP BRADLEY KING](https://appshunter.io/developer/1874172215) | [Scott Manley](https://appshunter.io/developer/1864388985) |

## What reviewers say

### 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


### Tone Gen Studio

[App page](https://appshunter.io/ios/app/tone-gen-studio/id6758694837)

Generate precise audio frequencies, conduct sweep tests, and analyze sound with a built-in microphone tuner and RTA analyzer. This toolkit is designed for musicians and audio engineers needing accurate tone and measurement tools.

**Highlights:** Pure tone generator with custom frequency, Preset tone pads, Sweep generator, Noise profiles (white, pink, brown), Binaural beats, Mic tuner with real-time display, RTA analyzer

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CentiGrade Visual Tuner free?

CentiGrade Visual Tuner costs $0.99, with no in-app purchases.

### Is Tone Gen Studio free?

Tone Gen Studio costs $0.99, with no in-app purchases.

### Which has better reviews, CentiGrade Visual Tuner or Tone Gen Studio?

CentiGrade Visual Tuner and Tone Gen Studio are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do CentiGrade Visual Tuner or Tone Gen Studio have ads?

Neither CentiGrade Visual Tuner nor Tone Gen Studio shows ads.

### Which is updated more often, CentiGrade Visual Tuner or Tone Gen Studio?

CentiGrade Visual Tuner ships an update every 4 days, and Tone Gen Studio every 6 weeks. Most recently, CentiGrade Visual Tuner was updated on October 24, 2026 and Tone Gen Studio on October 24, 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.*