# Amphi Notes vs CalcGrid

The clearest difference is price: Amphi Notes at Free against CalcGrid's $0.99. CalcGrid's advantage is update cadence (every 3 days vs every 4 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

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

Amphi Notes ships an update every 4 months, CalcGrid every 3 days. The most recent releases landed on September 13, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Amphi Notes | CalcGrid |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 days** |
| Size | 82 MB | 0 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Seung Yong Lee](https://appshunter.io/developer/1790998522) | [VIADEX VENTURES INC](https://appshunter.io/developer/1792353141) |

## What reviewers say

### Amphi Notes

[App page](https://appshunter.io/ios/app/amphi-notes/id6740662483)

**Features:** macOS Compatibility

**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 Amphi Notes free?

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

### Is CalcGrid free?

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

### Do Amphi Notes or CalcGrid have ads?

Neither Amphi Notes nor CalcGrid shows ads.

### Which is updated more often, Amphi Notes or CalcGrid?

Amphi Notes ships an update every 4 months, and CalcGrid every 3 days. Most recently, Amphi Notes was updated on September 13, 2026 and CalcGrid on September 11, 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.*