# FusionCalc vs NibbleCalc

The clearest difference is update cadence: NibbleCalc at every 5 weeks against FusionCalc's every 3 months. FusionCalc's advantage is iOS requirement (16.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. FusionCalc sells 2 in-app purchases, starting at $4.99 per month and NibbleCalc sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

FusionCalc ships an update every 3 months, NibbleCalc every 5 weeks. The most recent releases landed on September 9, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | FusionCalc | NibbleCalc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Size | 6 MB | 9 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [VALENTINA-GABRIELA CORCODEL](https://appshunter.io/developer/1762301357) | [LiChuan Lin](https://appshunter.io/developer/1895785594) |

## What reviewers say

### FusionCalc

[App page](https://appshunter.io/ios/app/fusioncalc-calculator-app/id6446907713)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Subscription Monthly | $4.99 | per month |
| Remove Ads | $14.99 | one-time |


### NibbleCalc

[App page](https://appshunter.io/ios/app/nibblecalc-dev-calculator/id6765700593)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is FusionCalc free?

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

### Is NibbleCalc free?

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

### Do FusionCalc or NibbleCalc have ads?

Both FusionCalc and NibbleCalc show ads.

### Which is updated more often, FusionCalc or NibbleCalc?

FusionCalc ships an update every 3 months, and NibbleCalc every 5 weeks. Most recently, FusionCalc was updated on September 9, 2026 and NibbleCalc on September 8, 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.*