# 3W vs Standard Form Calculator

The clearest difference is ads: 3W at none against Standard Form Calculator's shown. Standard Form Calculator's advantage is device support (3 vs 1). On price, update cadence, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. 3W sells 5 one-off in-app purchases and Standard Form Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

3W ships an update every 9 months, Standard Form Calculator every 8 months. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 3W | Standard Form Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/standard-form-calculator/id1595532933/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 8 months** |
| Monetization | — | Free with in-app purchases |
| Size | 6 MB | 39 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Juice Box Monkey Designs Inc.](https://appshunter.io/developer/1447575768) | [Asad Ahsan](https://appshunter.io/developer/1326954499) |

## What reviewers say

### 3W

[App page](https://appshunter.io/ios/app/3w/id1545079011)

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Word Tip | $0.99 | one-time |
| Sentence Tip | $1.99 | one-time |
| Paragraph Tip | $3.99 | one-time |
| Short Story Tip | $5.99 | one-time |
| Novel Tip | $19.99 | one-time |


### Standard Form Calculator

[App page](https://appshunter.io/ios/app/standard-form-calculator/id1595532933)

Easily convert any number into its standard form, scientific notation, or engineering notation. This tool simplifies large and small numbers for better understanding and calculation. It offers accurate conversions and works both online and offline.

**Highlights:** Standard form conversion, Scientific notation, Engineering notation, Online and offline functionality, User-friendly interface, Accurate results

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard Form Calc Premium | $4.99 | one-time |


## Frequently asked questions

### Is 3W free?

3W is free to download, with in-app purchases available.

### Is Standard Form Calculator free?

Standard Form Calculator is free to download, with in-app purchases available.

### Do 3W or Standard Form Calculator have ads?

Standard Form Calculator shows ads; 3W does not.

### Which is updated more often, 3W or Standard Form Calculator?

3W ships an update every 9 months, and Standard Form Calculator every 8 months. Most recently, 3W was updated on November 7, 2026 and Standard Form Calculator on November 3, 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.*