# Calculator vs CellVkey

The clearest difference is ads: CellVkey at none against Calculator's shown. CellVkey also leads on update cadence (every 4 weeks vs every 110 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Calculator ships an update every 110 months, CellVkey every 4 weeks. Both last shipped on October 29, 2026.

## The numbers

| Metric | Calculator | CellVkey |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 110 months | **Every 4 weeks** |
| Size | 10 MB | 18 MB |
| Requires iOS | 15.6 | **15.4** |
| Devices | iPhone, iPod | **iPhone, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Ramalingam Sivaramakrishnan](https://appshunter.io/developer/892706271) | [NESTECH CORPORATION, LTD.](https://appshunter.io/developer/438677844) |

## What reviewers say

### Calculator

[App page](https://appshunter.io/ios/app/calculator-scientific/id1084811826)

**Features:** macOS Compatibility

**In-app purchases:** none


### CellVkey

[App page](https://appshunter.io/ios/app/cellvkey/id1437756843)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Calculator free?

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

### Is CellVkey free?

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

### Do Calculator or CellVkey have ads?

Calculator shows ads; CellVkey does not.

### Which is updated more often, Calculator or CellVkey?

Calculator ships an update every 110 months, and CellVkey every 4 weeks. Most recently, Calculator was updated on October 29, 2026 and CellVkey on October 29, 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.*