# PV vs HiSono

The clearest difference is update cadence: HiSono at fortnightly against PV's monthly. HiSono also leads on iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

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

PV ships an update monthly, HiSono fortnightly. The most recent releases landed on October 3, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | PV | HiSono |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Size | 46 MB | 189 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [汎宇能源科技股份有限公司](https://appshunter.io/developer/1686067953) | [Hukui Biotechnology](https://appshunter.io/developer/1591429992) |

## What reviewers say

### PV

[App page](https://appshunter.io/ios/app/pv-eye/id1311145797)

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

**In-app purchases:** none


### HiSono

[App page](https://appshunter.io/ios/app/hisono/id6449582837)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PV free?

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

### Is HiSono free?

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

### Do PV or HiSono have ads?

Neither PV nor HiSono shows ads.

### Which is updated more often, PV or HiSono?

PV ships an update monthly, and HiSono fortnightly. Most recently, PV was updated on October 3, 2026 and HiSono on October 7, 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.*