# 1Calc vs MSRX AI Calculator

The clearest difference is in-app purchases: MSRX AI Calculator at none against 1Calc's 3. MSRX AI Calculator also leads on ads (none vs shown). 1Calc's advantage is update cadence (fortnightly vs every 6 months) and iOS requirement (18.0 vs 26.2). On price and device support there is nothing between them.

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

1Calc ships an update fortnightly, MSRX AI Calculator every 6 months. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | 1Calc | MSRX AI Calculator |
| --- | --- | --- |
| 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 6 months |
| Monetization | Free with in-app purchases | — |
| Size | 6 MB | 7 MB |
| Requires iOS | **18.0** | 26.2 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Asim Roy](https://appshunter.io/developer/1703408134) | [Mrinal Singh Raja](https://appshunter.io/developer/1879524280) |

## What reviewers say

### 1Calc

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

This app offers a streamlined calculator experience with a history feature to review past calculations. It boasts a modern design with customizable themes and ensures a premium user experience by being ad-free for premium users. Enhanced percentage calculation logic provides accurate results.

**Highlights:** History functionality, Customizable themes, Ad-free premium experience, Accurate percentage calculation, Smart and modern design

**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 |


### MSRX AI Calculator

[App page](https://appshunter.io/ios/app/msrx-ai-calculator/id6759639887)

**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 MSRX AI Calculator free?

MSRX AI Calculator is free to download, with no in-app purchases.

### Do 1Calc or MSRX AI Calculator have ads?

1Calc shows ads; MSRX AI Calculator does not.

### Which is updated more often, 1Calc or MSRX AI Calculator?

1Calc ships an update fortnightly, and MSRX AI Calculator every 6 months. Most recently, 1Calc was updated on November 4, 2026 and MSRX AI Calculator on November 5, 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.*