# ±0正負零 vs Parati Audio

The clearest difference is iOS requirement: ±0正負零 at 13.0 against Parati Audio's 16.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

±0正負零 ships an update every 9 days, Parati Audio fortnightly. Both last shipped on October 25, 2026.

## The numbers

| Metric | ±0正負零 | Parati Audio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Fortnightly |
| Size | 75 MB | 110 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [冠源 余](https://appshunter.io/developer/1100084170) | [Rehear Audiology Company LTD](https://appshunter.io/developer/1844818154) |

## What reviewers say

### ±0正負零

[App page](https://appshunter.io/ios/app/0/id6739824373)

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

**In-app purchases:** none


### Parati Audio

[App page](https://appshunter.io/ios/app/parati-audio/id6753747457)

**In-app purchases:** none


## Frequently asked questions

### Is ±0正負零 free?

±0正負零 is free to download, with no in-app purchases.

### Is Parati Audio free?

Parati Audio is free to download, with no in-app purchases.

### Do ±0正負零 or Parati Audio have ads?

Neither ±0正負零 nor Parati Audio shows ads.

### Which is updated more often, ±0正負零 or Parati Audio?

±0正負零 ships an update every 9 days, and Parati Audio fortnightly. Most recently, ±0正負零 was updated on October 25, 2026 and Parati Audio 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.*