# 1000digit Calc vs WebShelf

The clearest difference is in-app purchases: 1000digit Calc at none against WebShelf's 1. 1000digit Calc also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.4). On price, update cadence and ads there is nothing between them.

Both are free to download. WebShelf sells 1 one-off in-app purchase. 1000digit Calc asks for nothing beyond the download.

1000digit Calc ships an update weekly, WebShelf every 4 days. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 1000digit Calc | WebShelf |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/1000digit-calc/id6463856899/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | Free | — |
| Size | 5 MB | 4 MB |
| Requires iOS | **15.0** | 17.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Yukihiro Shioya](https://appshunter.io/developer/1565306192) | [SHIGEMITSU RYOMA](https://appshunter.io/developer/6775736847) |

## What reviewers say

### 1000digit Calc

[App page](https://appshunter.io/ios/app/1000digit-calc/id6463856899)

Perform arithmetic operations on integers up to 1,000 digits. Supports parentheses for complex calculations and automatically saves results to the clipboard for easy reuse in other applications.

**Highlights:** 1,000-digit integer calculations, Parentheses support for formula order, Automatic clipboard saving of results, Four basic arithmetic operations, Cross-application result reuse

**Features:** macOS Compatibility

**In-app purchases:** none


### WebShelf

[App page](https://appshunter.io/ios/app/webshelf/id6775736845)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full (Unlimited Saves) | $2.99 | one-time |


## Frequently asked questions

### Is 1000digit Calc free?

1000digit Calc is free to download, with no in-app purchases.

### Is WebShelf free?

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

### Do 1000digit Calc or WebShelf have ads?

Neither 1000digit Calc nor WebShelf shows ads.

### Which is updated more often, 1000digit Calc or WebShelf?

1000digit Calc ships an update weekly, and WebShelf every 4 days. Most recently, 1000digit Calc was updated on October 30, 2026 and WebShelf 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.*