# Fomcal vs InstantMemo

The clearest difference is price: InstantMemo at Free against Fomcal's $1.99. InstantMemo also leads on in-app purchases (none vs 1) and review sentiment (100% vs 75%). On ads, device support and iOS requirement there is nothing between them.

InstantMemo is free to download; Fomcal costs $1.99 up front. Fomcal sells 1 one-off in-app purchase. InstantMemo asks for nothing beyond the download.

Fomcal ships an update every 3 months, InstantMemo every 2 weeks. The most recent releases landed on October 13, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Fomcal | InstantMemo |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 6 MB | 10 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NOBORU IMAI](https://appshunter.io/developer/896071356) | [Shigeki Matsunaka](https://appshunter.io/developer/1490398291) |

## What reviewers say

### Fomcal

[App page](https://appshunter.io/ios/app/fomcal/id954145664)

This app allows you to create and save custom calculation formulas for daily use. It supports complex functions, logical operations, and parameter studies, with options to export results as CSV. An optional numeric pad enhances input efficiency.

**Highlights:** Save and reuse custom formulas, Support for logical and comparison functions, Parameter study for variable analysis, Export results as CSV, Optional enhanced numeric pad, Extended syntax for branching and iteration

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Enhancements | $1.99 | one-time |


### InstantMemo

[App page](https://appshunter.io/ios/app/instantmemo/id1499441936)

This app is designed for quick note-taking, prioritizing speed and simplicity. It removes all non-essential features to ensure the fastest possible startup time for immediate jotting down of ideas.

**Highlights:** Maximum startup speed, Eliminates extra functions, Immediate note-taking, Simple interface

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

**In-app purchases:** none


## Frequently asked questions

### Is Fomcal free?

Fomcal costs $1.99, and also offers in-app purchases.

### Is InstantMemo free?

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

### Do Fomcal or InstantMemo have ads?

Neither Fomcal nor InstantMemo shows ads.

### Which is updated more often, Fomcal or InstantMemo?

Fomcal ships an update every 3 months, and InstantMemo every 2 weeks. Most recently, Fomcal was updated on October 13, 2026 and InstantMemo on October 15, 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.*