# FS Nucleus vs Collins Infinity

The clearest difference is update cadence: Collins Infinity at every 3 months against FS Nucleus's every 9 months. Collins Infinity also leads on iOS requirement (11.0 vs 15.6). 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.

FS Nucleus ships an update every 9 months, Collins Infinity every 3 months. The most recent releases landed on September 14, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | FS Nucleus | Collins Infinity |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 months** |
| Size | 33 MB | 141 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [FOUNTAINHEAD EDUCATION LLP](https://appshunter.io/developer/1408999214) | [HarperCollins Publishers India](https://appshunter.io/developer/989158175) |

## What reviewers say

### FS Nucleus

[App page](https://appshunter.io/ios/app/fs-nucleus/id1625806958)

**Features:** macOS Compatibility

**In-app purchases:** none


### Collins Infinity

[App page](https://appshunter.io/ios/app/collins-infinity/id6443555048)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is FS Nucleus free?

FS Nucleus is free to download, with no in-app purchases.

### Is Collins Infinity free?

Collins Infinity is free to download, with no in-app purchases.

### Do FS Nucleus or Collins Infinity have ads?

Neither FS Nucleus nor Collins Infinity shows ads.

### Which is updated more often, FS Nucleus or Collins Infinity?

FS Nucleus ships an update every 9 months, and Collins Infinity every 3 months. Most recently, FS Nucleus was updated on September 14, 2026 and Collins Infinity on September 19, 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.*