# 1Calc vs Calculator 4U

The clearest difference is in-app purchases: Calculator 4U at none against 1Calc's 3. Calculator 4U also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. 1Calc sells 3 in-app purchases, starting at $0.99 per month. Calculator 4U asks for nothing beyond the download.

1Calc ships an update fortnightly, Calculator 4U every 3 weeks. The most recent releases landed on October 24, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | 1Calc | Calculator 4U |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/1calc-one-calculator/id6502853473/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Size | 6 MB | 2 MB |
| Requires iOS | **18.0** | 18.2 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Asim Roy](https://appshunter.io/developer/1703408134) | [Naseer Mohammed](https://appshunter.io/developer/1794812503) |

## What reviewers say

### 1Calc

[App page](https://appshunter.io/ios/app/1calc-one-calculator/id6502853473)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Yearly | $3.99 | per year |
| Lifetime | $8.99 | one-time |


### Calculator 4U

[App page](https://appshunter.io/ios/app/calculator-4u/id6741595255)

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

**In-app purchases:** none


## Frequently asked questions

### Is 1Calc free?

1Calc is free to download, with in-app purchases available.

### Is Calculator 4U free?

Calculator 4U is free to download, with no in-app purchases.

### Do 1Calc or Calculator 4U have ads?

1Calc shows ads; Calculator 4U does not.

### Which is updated more often, 1Calc or Calculator 4U?

1Calc ships an update fortnightly, and Calculator 4U every 3 weeks. Most recently, 1Calc was updated on October 24, 2026 and Calculator 4U on October 6, 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.*