# rare numbers vs Space Ducks 2

The clearest difference is in-app purchases: rare numbers at none against Space Ducks 2's 4. Space Ducks 2's advantage is update cadence (every 3 days vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Space Ducks 2 sells 4 one-off in-app purchases. rare numbers asks for nothing beyond the download.

rare numbers ships an update every 4 months, Space Ducks 2 every 3 days. The most recent releases landed on October 16, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | rare numbers | Space Ducks 2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/space-ducks-2/id6761355927/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 13 MB | 118 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kevin Griffing](https://appshunter.io/developer/1772253467) | [Specktronica LLC](https://appshunter.io/developer/1875097192) |

## What reviewers say

### rare numbers

[App page](https://appshunter.io/ios/app/rare-numbers/id6744262836)

**Features:** macOS Compatibility

**In-app purchases:** none


### Space Ducks 2

[App page](https://appshunter.io/ios/app/space-ducks-2/id6761355927)

Build a vast space empire by growing a duck colony. Tap for resources, launch rockets, mine asteroids, and research technology at your own pace. Enjoy deep progression with stacking upgrades and prestige runs.

**Highlights:** Colony to empire expansion, Deep progression with upgrades, Tech tree research, Multiple visual themes, Offline earnings, Prestige runs

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DNA Vial - 1K | $4.99 | one-time |
| DNA Beaker - 5K | $9.99 | one-time |
| Stockpile License | $9.99 | one-time |
| DNA Lab - 25K | $19.99 | one-time |


## Frequently asked questions

### Is rare numbers free?

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

### Is Space Ducks 2 free?

Space Ducks 2 is free to download, with in-app purchases available.

### Do rare numbers or Space Ducks 2 have ads?

Both rare numbers and Space Ducks 2 show ads.

### Which is updated more often, rare numbers or Space Ducks 2?

rare numbers ships an update every 4 months, and Space Ducks 2 every 3 days. Most recently, rare numbers was updated on October 16, 2026 and Space Ducks 2 on October 22, 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.*