# Square Inches Calculator vs BILLeBOOK

The clearest difference is in-app purchases: BILLeBOOK at none against Square Inches Calculator's 3. BILLeBOOK also leads on update cadence (every 3 weeks vs every 31 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Square Inches Calculator sells 3 in-app purchases, starting at $0.99 per 7 days. BILLeBOOK asks for nothing beyond the download.

Square Inches Calculator ships an update every 31 months, BILLeBOOK every 3 weeks. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Square Inches Calculator | BILLeBOOK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/square-inches-calculator/id1563367598/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 31 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Size | 2 MB | 32 MB |
| Requires iOS | 14.2 | **13.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Anna Filobok](https://appshunter.io/developer/1613515832) | [Ketan Sharma](https://appshunter.io/developer/1453581837) |

## What reviewers say

### Square Inches Calculator

[App page](https://appshunter.io/ios/app/square-inches-calculator/id1563367598)

This app quickly calculates area in square inches and converts between imperial and metric units. Simply input width and length in various units to get instant area results in multiple formats.

**Highlights:** Instant area calculation, Imperial to metric conversion, Supports centimeters, meters, inches, feet, yards, Calculates square centimeters, meters, inches, feet, yards, Real-time unit conversion

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $0.99 | per 7 days |
| Premium Access | $1.99 | per month |
| Premium Access | $5.99 | per year |


### BILLeBOOK

[App page](https://appshunter.io/ios/app/billebook-software/id1606010812)

**In-app purchases:** none


## Frequently asked questions

### Is Square Inches Calculator free?

Square Inches Calculator is free to download, with in-app purchases available.

### Is BILLeBOOK free?

BILLeBOOK is free to download, with no in-app purchases.

### Do Square Inches Calculator or BILLeBOOK have ads?

Neither Square Inches Calculator nor BILLeBOOK shows ads.

### Which is updated more often, Square Inches Calculator or BILLeBOOK?

Square Inches Calculator ships an update every 31 months, and BILLeBOOK every 3 weeks. Most recently, Square Inches Calculator was updated on November 3, 2026 and BILLeBOOK on October 25, 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.*