# Stock HiLo vs Alpha Sight

The clearest difference is in-app purchases: Stock HiLo at none against Alpha Sight's 2. Stock HiLo also leads on update cadence (every 2 days vs every 8 days). Alpha Sight's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Alpha Sight sells 2 in-app purchases, starting at $9.99 per month. Stock HiLo asks for nothing beyond the download.

Stock HiLo ships an update every 2 days, Alpha Sight every 8 days. The most recent releases landed on October 11, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Stock HiLo | Alpha Sight |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 days** | Every 8 days |
| Size | 5 MB | 40 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yuki Taniguchi](https://appshunter.io/developer/1879248125) | [Jaehwan Jung](https://appshunter.io/developer/1895324732) |

## What reviewers say

### Stock HiLo

[App page](https://appshunter.io/ios/app/stock-hilo/id6759896635)

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

**In-app purchases:** none


### Alpha Sight

[App page](https://appshunter.io/ios/app/alpha-sight/id6763457584)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bio Insider Pro | $9.99 | per month |
| Bio Insider Pro | $84.00 | per year |


## Frequently asked questions

### Is Stock HiLo free?

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

### Is Alpha Sight free?

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

### Do Stock HiLo or Alpha Sight have ads?

Stock HiLo shows ads; Alpha Sight does not.

### Which is updated more often, Stock HiLo or Alpha Sight?

Stock HiLo ships an update every 2 days, and Alpha Sight every 8 days. Most recently, Stock HiLo was updated on October 11, 2026 and Alpha Sight 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.*