# zeroStudy vs HiShadow

The clearest difference is update cadence: zeroStudy at every 2 days against HiShadow's every 10 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. zeroStudy sells 3 in-app purchases, starting at $12.00 per month and HiShadow sells 8 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

zeroStudy ships an update every 2 days, HiShadow every 10 days. The most recent releases landed on October 31, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | zeroStudy | HiShadow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 10 days |
| Size | 43 MB | 61 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [JIA JIUN Ku](https://appshunter.io/developer/1884246557) | [I Ting Huang](https://appshunter.io/developer/6792437704) |

## What reviewers say

### zeroStudy

[App page](https://appshunter.io/ios/app/zerostudy/id6760388575)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| zeroStudy Pro Monthly | $12.00 | per month |
| zeroStudy Pro Yearly | $84.00 | per year |
| zeroStudy Pro Lifetime | $269.00 | one-time |


### HiShadow

[App page](https://appshunter.io/ios/app/hishadow-shadowing-and-ai-chat/id6792437492)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic | $5.99 | per month |
| Pro | $11.99 | per month |
| Max | $19.99 | per month |
| Pro 1 Month | $24.99 | per month |
| Pro 3 Months | $59.99 | per 3 months |
| Pro 方案年訂閱 | $79.99 | per year |
| Pro 6 Months | $99.99 | per 6 months |
| Pro 12 Months | $129.99 | per year |


## Frequently asked questions

### Is zeroStudy free?

zeroStudy is free to download, with in-app purchases available.

### Is HiShadow free?

HiShadow is free to download, with in-app purchases available.

### Do zeroStudy or HiShadow have ads?

Neither zeroStudy nor HiShadow shows ads.

### Which is updated more often, zeroStudy or HiShadow?

zeroStudy ships an update every 2 days, and HiShadow every 10 days. Most recently, zeroStudy was updated on October 31, 2026 and HiShadow 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.*