# Codex Calc vs Calculator + Formula & History

The clearest difference is price: Calculator + Formula & History at Free against Codex Calc's $0.99. Calculator + Formula & History also leads on update cadence (monthly vs every 6 months). Codex Calc's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

Calculator + Formula & History is free to download; Codex Calc costs $0.99 up front. Calculator + Formula & History sells 1 one-off in-app purchase. Codex Calc asks for nothing beyond the download.

Codex Calc ships an update every 6 months, Calculator + Formula & History monthly. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Codex Calc | Calculator + Formula & History |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/codex-calc/id505057155/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Monthly** |
| Monetization | Paid | — |
| Size | 11 MB | 25 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Driftwood Studio Software LLC](https://appshunter.io/developer/1822849713) | [IPPEI NAGAMINE](https://appshunter.io/developer/1860723239) |

## What reviewers say

### Codex Calc

[App page](https://appshunter.io/ios/app/codex-calc/id505057155)

This app offers a powerful yet intuitive calculator experience with a variety of modes including scientific, unit conversion, and tip calculation. It features a customizable interface and a detailed history tape for all your calculations.

**Highlights:** Full scientific calculator functions, Unit converter, Tip calculator, RPN mode, History tape, Customizable interface, Multiple visual themes

**Features:** macOS Compatibility

**In-app purchases:** none


### Calculator + Formula & History

[App page](https://appshunter.io/ios/app/calculator-plus-formula-and-history/id6757658561)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Codex Calc free?

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

### Is Calculator + Formula & History free?

Calculator + Formula & History is free to download, with in-app purchases available.

### Do Codex Calc or Calculator + Formula & History have ads?

Calculator + Formula & History shows ads; Codex Calc does not.

### Which is updated more often, Codex Calc or Calculator + Formula & History?

Codex Calc ships an update every 6 months, and Calculator + Formula & History monthly. Most recently, Codex Calc was updated on November 6, 2026 and Calculator + Formula & History on November 5, 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.*