# Security Investments vs Stack Investment

The clearest difference is update cadence: Stack Investment at every 11 days against Security Investments's every 11 months. Security Investments's advantage is iOS requirement (15.1 vs 18). 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.

Security Investments ships an update every 11 months, Stack Investment every 11 days. Both last shipped on October 28, 2026.

## The numbers

| Metric | Security Investments | Stack Investment |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 11 days** |
| Size | 34 MB | 43 MB |
| Requires iOS | **15.1** | 18 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Security Investments Limited](https://appshunter.io/developer/1826547369) | [Ibrahim Azzam](https://appshunter.io/developer/1846762388) |

## What reviewers say

### Security Investments

[App page](https://appshunter.io/ios/app/security-investments/id6748609007)

**Features:** macOS Compatibility

**In-app purchases:** none


### Stack Investment

[App page](https://appshunter.io/ios/app/stack-investment/id6754151114)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Security Investments free?

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

### Is Stack Investment free?

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

### Do Security Investments or Stack Investment have ads?

Neither Security Investments nor Stack Investment shows ads.

### Which is updated more often, Security Investments or Stack Investment?

Security Investments ships an update every 11 months, and Stack Investment every 11 days. Most recently, Security Investments was updated on October 28, 2026 and Stack Investment on October 28, 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.*