# Calcvier vs Calc4Key

The clearest difference is update cadence: Calc4Key at daily against Calcvier's every 8 months. Calc4Key also leads on ratings volume (828 vs 143) and price ($0.99 vs $2.99). Calcvier's advantage is review sentiment (81% vs 63%). On rating, ads, in-app purchases and monetization model there is nothing between them.

Calcvier costs $2.99 and Calc4Key $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Calc4Key holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Calc4Key has 828 ratings behind it against 143, so its average is the more settled of the two. Written reviews complicate that: 81% of Calcvier's written reviews are positive against 63% of Calc4Key's, so the app with the better star average is not the one people write more warmly about.

Calcvier ships an update every 8 months, Calc4Key daily. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Calcvier | Calc4Key |
| --- | --- | --- |
| Price | $2.99 | **$0.99** |
| Rating | [4.4 (143 ratings)](https://appshunter.io/ios/app/calcvier-keyboard-calculator/id954157490/reviews) | **[4.6 (828 ratings)](https://appshunter.io/ios/app/calc4key/id1585531759/reviews)** |
| Number of ratings | 143 | **828** |
| Positive reviews | **81.2% of reviews** | 62.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Daily** |
| Monetization | Free | Free |
| Size | 6 MB | 9 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sergei Shpygar](https://appshunter.io/developer/866778152) | [Khang Le](https://appshunter.io/developer/1078541780) |

## What reviewers say

### Calcvier

[App page](https://appshunter.io/ios/app/calcvier-keyboard-calculator/id954157490)

Transform your device's keyboard into a powerful calculator. Perform quick calculations directly within any app without switching screens or copying and pasting results.

**Highlights:** Calculator keyboard integration, Perform calculations anywhere, No app switching required, No copy-pasting results, Use in Notes, Mail, Safari, Messages

**Features:** iMessage stickers

**In-app purchases:** none


### Calc4Key

[App page](https://appshunter.io/ios/app/calc4key/id1585531759)

Perform calculations directly within your keyboard, eliminating the need to switch apps or copy-paste results. This utility allows you to calculate anywhere you type, enhancing productivity and convenience.

**Highlights:** Calculator on keyboard, Calculate anywhere, No app switching, No copy-paste results, Easy keyboard selection

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

**In-app purchases:** none


## Frequently asked questions

### Is Calcvier free?

Calcvier costs $2.99, with no in-app purchases.

### Is Calc4Key free?

Calc4Key costs $0.99, with no in-app purchases.

### Which has better reviews, Calcvier or Calc4Key?

Calc4Key is rated higher. Calcvier averages 4.4 out of 5 from 143 ratings, while Calc4Key averages 4.6 from 828 ratings.

### Do Calcvier or Calc4Key have ads?

Neither Calcvier nor Calc4Key shows ads.

### Which is updated more often, Calcvier or Calc4Key?

Calcvier ships an update every 8 months, and Calc4Key daily. Most recently, Calcvier was updated on November 1, 2026 and Calc4Key on November 3, 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.*