# 1Calc vs Ace Calc

The clearest difference is rating: Ace Calc at 5.0 against 1Calc's 2.0. Ace Calc also leads on ads (none vs shown) and device support (3 vs 1). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. 1Calc sells 3 in-app purchases, starting at $0.99 per month and Ace Calc sells 3 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Ace Calc holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

1Calc ships an update fortnightly, Ace Calc monthly. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 1Calc | Ace Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/1calc-one-calculator/id6502853473/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ace-calc/id6758740876/reviews)** |
| Number of ratings | 1 | **2** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Free with in-app purchases | Freemium |
| Size | 6 MB | 32 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Asim Roy](https://appshunter.io/developer/1703408134) | [4636 Digital LLC](https://appshunter.io/developer/1857542871) |

## 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 |


### Ace Calc

[App page](https://appshunter.io/ios/app/ace-calc/id6758740876)

Perform calculations with voice commands or traditional input. Save results as variables, access a full history, and customize the interface with themes. Offers basic and advanced scientific functions for everyday and complex math needs.

**Highlights:** Voice input for hands-free calculations, Save results as reusable variables, Full calculation history, Basic and scientific functions, Customizable themes and styles, Undo/Redo support

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro Package | $5.99 | per month |
| Yearly Pro Package | $34.99 | per year |
| Lifetime Pro Package | $49.99 | one-time |


## Frequently asked questions

### Is 1Calc free?

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

### Is Ace Calc free?

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

### Which has better reviews, 1Calc or Ace Calc?

Ace Calc is rated higher. 1Calc averages 2.0 out of 5 from 1 ratings, while Ace Calc averages 5.0 from 2 ratings.

### Do 1Calc or Ace Calc have ads?

1Calc shows ads; Ace Calc does not.

### Which is updated more often, 1Calc or Ace Calc?

1Calc ships an update fortnightly, and Ace Calc monthly. Most recently, 1Calc was updated on November 4, 2026 and Ace Calc on October 31, 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.*