# Formula Calculator # vs Currency Cheat Sheet Widgets

The clearest difference is in-app purchases: Currency Cheat Sheet Widgets at none against Formula Calculator #'s 4. Currency Cheat Sheet Widgets also leads on ads (none vs shown) and update cadence (daily vs every 5 weeks). Formula Calculator #'s advantage is device support (3 vs 1) and iOS requirement (12.0 vs 26.1). On price there is nothing between them.

Both are free to download. Formula Calculator # sells 4 one-off in-app purchases. Currency Cheat Sheet Widgets asks for nothing beyond the download.

Formula Calculator # ships an update every 5 weeks, Currency Cheat Sheet Widgets daily. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Formula Calculator # | Currency Cheat Sheet Widgets |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/formula-calculator/id6504839903/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 67 MB | 7 MB |
| Requires iOS | **12.0** | 26.1 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [威 刘](https://appshunter.io/developer/1465235012) | [Dennis Van Dalen](https://appshunter.io/developer/1862992231) |

## What reviewers say

### Formula Calculator #

[App page](https://appshunter.io/ios/app/formula-calculator/id6504839903)

Perform calculations with a vast library of built-in formulas or create your own. Save and sync custom formulas to the cloud for easy access across devices. Includes a comprehensive scientific calculator.

**Highlights:** Extensive built-in calculation formulas, Create and save custom formulas, Cloud synchronization for custom formulas, Share custom formulas with others, Comprehensive scientific calculator

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 month subscription | $1.49 | one-time |
| 3 months subscription | $2.49 | one-time |
| 6 months subscription | $3.49 | one-time |
| 1 year subscription | $4.49 | one-time |


### Currency Cheat Sheet Widgets

[App page](https://appshunter.io/ios/app/currency-cheat-sheet-widgets/id6756807004)

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

**In-app purchases:** none


## Frequently asked questions

### Is Formula Calculator # free?

Formula Calculator # is free to download, with in-app purchases available.

### Is Currency Cheat Sheet Widgets free?

Currency Cheat Sheet Widgets is free to download, with no in-app purchases.

### Do Formula Calculator # or Currency Cheat Sheet Widgets have ads?

Formula Calculator # shows ads; Currency Cheat Sheet Widgets does not.

### Which is updated more often, Formula Calculator # or Currency Cheat Sheet Widgets?

Formula Calculator # ships an update every 5 weeks, and Currency Cheat Sheet Widgets daily. Most recently, Formula Calculator # was updated on October 2, 2026 and Currency Cheat Sheet Widgets on October 7, 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.*