# Calcvier vs Error Note

The clearest difference is price: Error Note at $0.99 against Calcvier's $2.99. Calcvier's advantage is iOS requirement (15.6 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

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

## The numbers

| Metric | Calcvier | Error Note |
| --- | --- | --- |
| Price | $2.99 | **$0.99** |
| Rating | **[4.4 (143 ratings)](https://appshunter.io/ios/app/calcvier-keyboard-calculator/id954157490/reviews)** | — |
| Number of ratings | **143** | — |
| Positive reviews | 81.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | — |
| Monetization | Free | — |
| Size | 6 MB | 17 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sergei Shpygar](https://appshunter.io/developer/866778152) | [建春 张](https://appshunter.io/developer/1844027944) |

## 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


### Error Note

[App page](https://appshunter.io/ios/app/error-note/id6755984755)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calcvier free?

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

### Is Error Note free?

Error Note costs $0.99, with no in-app purchases.

### Do Calcvier or Error Note have ads?

Neither Calcvier nor Error Note shows ads.

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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.*