# Formula Calculator # vs Scan Note App

The clearest difference is ads: Scan Note App at none against Formula Calculator #'s shown. Formula Calculator #'s advantage is iOS requirement (12.0 vs 15.6). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Formula Calculator # sells 4 one-off in-app purchases and Scan Note App sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Formula Calculator # against 5.0 for Scan Note App. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Formula Calculator # ships an update every 5 weeks, Scan Note App every 6 weeks. The most recent releases landed on September 14, 2026 and August 26, 2026 respectively.

## The numbers

| Metric | Formula Calculator # | Scan Note App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/formula-calculator/id6504839903/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/scan-note-app-qr-code-labels/id6623997727/reviews) |
| Number of ratings | 2 | **3** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 5 weeks** | Every 6 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 67 MB | 126 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [威 刘](https://appshunter.io/developer/1465235012) | [Lilikoi Ventures, LLC](https://appshunter.io/developer/1762079214) |

## 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 |


### Scan Note App

[App page](https://appshunter.io/ios/app/scan-note-app-qr-code-labels/id6623997727)

This utility app allows you to attach QR codes to your belongings. If an item is found, the scanner is directed to your custom contact page, enabling quick and easy recovery with location notifications.

**Highlights:** Attach QR codes to items, Create custom contact pages, Receive location notifications, Easy item recovery, Personalized messages for finders

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| Quarterly Subscription | $12.99 | per 3 months |
| Annual Subscription | $29.99 | per year |


## Frequently asked questions

### Is Formula Calculator # free?

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

### Is Scan Note App free?

Scan Note App is free to download, with in-app purchases available.

### Which has better reviews, Formula Calculator # or Scan Note App?

Formula Calculator # and Scan Note App are both rated 5.0 out of 5 on the App Store, from 2 and 3 ratings respectively.

### Do Formula Calculator # or Scan Note App have ads?

Formula Calculator # shows ads; Scan Note App does not.

### Which is updated more often, Formula Calculator # or Scan Note App?

Formula Calculator # ships an update every 5 weeks, and Scan Note App every 6 weeks. Most recently, Formula Calculator # was updated on September 14, 2026 and Scan Note App on August 26, 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.*