# Stack Investment vs Slomo

The clearest difference is in-app purchases: Stack Investment at none against Slomo's 3. Slomo's advantage is iOS requirement (15.1 vs 18). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Slomo sells 3 in-app purchases, starting at $2.99 per month. Stack Investment asks for nothing beyond the download.

Stack Investment ships an update every 11 days, Slomo fortnightly. The most recent releases landed on September 16, 2026 and July 31, 2026 respectively.

## The numbers

| Metric | Stack Investment | Slomo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 11 days** | Fortnightly |
| Size | 43 MB | 60 MB |
| Requires iOS | 18 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ibrahim Azzam](https://appshunter.io/developer/1846762388) | [Ahmad Faour](https://appshunter.io/developer/1893998834) |

## What reviewers say

### Stack Investment

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Slomo

[App page](https://appshunter.io/ios/app/slomo-subscription-tracker/id6769283706)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $2.99 | per month |
| Slomo Pro Yearly | $79.99 | per year |
| Slomo Pro Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is Stack Investment free?

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

### Is Slomo free?

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

### Do Stack Investment or Slomo have ads?

Neither Stack Investment nor Slomo shows ads.

### Which is updated more often, Stack Investment or Slomo?

Stack Investment ships an update every 11 days, and Slomo fortnightly. Most recently, Stack Investment was updated on September 16, 2026 and Slomo on July 31, 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.*