# Fomcal vs Triangle Calc A

The clearest difference is in-app purchases: Triangle Calc A at none against Fomcal's 1. Triangle Calc A also leads on price ($0.99 vs $1.99). Fomcal's advantage is update cadence (every 3 months vs every 56 months) and iOS requirement (12.0 vs 26.0). On ads and device support there is nothing between them.

Fomcal costs $1.99 and Triangle Calc A $0.99 up front. Fomcal sells 1 one-off in-app purchase. Triangle Calc A asks for nothing beyond the download.

Fomcal ships an update every 3 months, Triangle Calc A every 56 months. The most recent releases landed on November 1, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Fomcal | Triangle Calc A |
| --- | --- | --- |
| Price | $1.99 | **$0.99** |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 56 months |
| Monetization | Free with in-app purchases | — |
| Size | 6 MB | 0 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [NOBORU IMAI](https://appshunter.io/developer/896071356) | [kohei yamane](https://appshunter.io/developer/1239055575) |

## 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 |


### Triangle Calc A

[App page](https://appshunter.io/ios/app/triangle-calc-a/id1582200016)

**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 Triangle Calc A free?

Triangle Calc A costs $0.99, with no in-app purchases.

### Do Fomcal or Triangle Calc A have ads?

Neither Fomcal nor Triangle Calc A shows ads.

### Which is updated more often, Fomcal or Triangle Calc A?

Fomcal ships an update every 3 months, and Triangle Calc A every 56 months. Most recently, Fomcal was updated on November 1, 2026 and Triangle Calc A on October 27, 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.*