# PolyTune vs Cortex Cloud

The clearest difference is price: Cortex Cloud at Free against PolyTune's $4.99. Cortex Cloud also leads on rating (3.4 vs 2.8) and update cadence (every 6 weeks vs every 40 months). PolyTune's advantage is review sentiment (66% vs 29%) and iOS requirement (9.0 vs 13.0). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Cortex Cloud is free to download; PolyTune costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Cortex Cloud holds the better App Store score, 3.4 against 2.8. Both are backed by a comparable volume of ratings — 79 and 72 respectively. Written reviews complicate that: 66% of PolyTune's written reviews are positive against 29% of Cortex Cloud's, so the app with the better star average is not the one people write more warmly about.

PolyTune ships an update every 40 months, Cortex Cloud every 6 weeks. The most recent releases landed on September 28, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | PolyTune | Cortex Cloud |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [2.8 (79 ratings)](https://appshunter.io/ios/app/polytune/id364009203/reviews) | **[3.4 (72 ratings)](https://appshunter.io/ios/app/cortex-cloud/id1484938666/reviews)** |
| Number of ratings | **79** | 72 |
| Positive reviews | **65.7% of reviews** | 28.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 40 months | **Every 6 weeks** |
| Monetization | Paid | **Free** |
| Size | 45 MB | 100 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TC Electronic](https://appshunter.io/developer/364009206) | [Neural DSP](https://appshunter.io/developer/1458496080) |

## What reviewers say

### PolyTune

[App page](https://appshunter.io/ios/app/polytune/id364009203)

This application provides a powerful and accurate tuning tool for musicians. It allows for simultaneous tuning of all strings, supports various guitar and bass modes, and offers drop tunings. Its technology is based on a highly-regarded pedal tuner used by professionals.

**Highlights:** Tune all strings at once, Guitar/bass mode, Drop tunings support, Award-winning pedal technology, Chromatic tuning modes, High accuracy

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🩵 Works really well
- 💯 Accurate and precise
- 🔢 Polyphonic tuning mode
- 🎨 Customizable display colors
- 🔌 Works with electric and acoustic guitars

**What reviewers complain about**

- 🐛 Crashes or freezes on newer iOS versions
- 🔇 Struggles to pick up low strings or in noisy environments
- ⏱️ Screen dims during use
- 🚫 No support for alternate/custom tunings
- 💤 Drains battery quickly when running in background

**Reported bugs**

- Crashes on launch
- Unable to detect or tune certain strings
- Inaccurate tuning readings

**Requested features**

- Add support for 432Hz tuning
- Implement custom tuning options
- Improve compatibility with external audio interfaces
- Add a dedicated on/off switch


### Cortex Cloud

[App page](https://appshunter.io/ios/app/cortex-cloud/id1484938666)

Manage your Nano Cortex and access cloud-based content with an elegant interface. Browse and download presets, neural captures, and more. Control your device's profile and privacy settings.

**Highlights:** Control Nano Cortex, Access Cortex Cloud, Browse users and presets, Download content, Manage profile and privacy, Share content

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PolyTune free?

PolyTune costs $4.99, with no in-app purchases.

### Is Cortex Cloud free?

Cortex Cloud is free to download, with no in-app purchases.

### Which has better reviews, PolyTune or Cortex Cloud?

Cortex Cloud is rated higher. PolyTune averages 2.8 out of 5 from 79 ratings, while Cortex Cloud averages 3.4 from 72 ratings.

### Do PolyTune or Cortex Cloud have ads?

Neither PolyTune nor Cortex Cloud shows ads.

### Which is updated more often, PolyTune or Cortex Cloud?

PolyTune ships an update every 40 months, and Cortex Cloud every 6 weeks. Most recently, PolyTune was updated on September 28, 2026 and Cortex Cloud on September 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.*