# CalcFast vs CalcGrid

The clearest difference is price: CalcFast at Free against CalcGrid's $0.99. CalcGrid's advantage is update cadence (every 3 days vs every 2 months) and iOS requirement (13.0 vs 18.0). On ads, in-app purchases and device support there is nothing between them.

CalcFast is free to download; CalcGrid costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

CalcFast ships an update every 2 months, CalcGrid every 3 days. The most recent releases landed on October 13, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | CalcFast | CalcGrid |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.2 (20 ratings)](https://appshunter.io/ios/app/calcfast/id876781417/reviews)** | — |
| Number of ratings | **20** | — |
| Positive reviews | 78.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 6 MB | 0 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hannes Sverrisson](https://appshunter.io/developer/428851947) | [VIADEX VENTURES INC](https://appshunter.io/developer/1792353141) |

## What reviewers say

### CalcFast

[App page](https://appshunter.io/ios/app/calcfast/id876781417)

A fast and elegant calculator for Apple devices that displays your calculation history. It offers a Today Extension for quick access and supports Apple Watch, external keyboards, and VoiceOver.

**Highlights:** Calculation history display, Today Extension for quick calculations, Apple Watch app, Dark/light mode selection, External keyboard support, VoiceOver support

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

**In-app purchases:** none


### CalcGrid

[App page](https://appshunter.io/ios/app/calcgrid/id6744668495)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CalcFast free?

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

### Is CalcGrid free?

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

### Do CalcFast or CalcGrid have ads?

Neither CalcFast nor CalcGrid shows ads.

### Which is updated more often, CalcFast or CalcGrid?

CalcFast ships an update every 2 months, and CalcGrid every 3 days. Most recently, CalcFast was updated on October 13, 2026 and CalcGrid on September 30, 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.*