# Calculator vs BIG CALCULATOR.

The clearest difference is review sentiment: BIG CALCULATOR. at 100% against Calculator's 20%. BIG CALCULATOR. also leads on rating (4.5 vs 1.8) and update cadence (every 3 weeks vs every 15 months). Calculator's advantage is in-app purchases (none vs 1) and iOS requirement (13.0 vs 15.0). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. BIG CALCULATOR. sells 1 in-app purchase, starting at $2.99 per year. Calculator asks for nothing beyond the download.

BIG CALCULATOR. holds the better App Store score, 4.5 against 1.8. That said, the two scores are not equally well evidenced: BIG CALCULATOR. has 63 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 20% of Calculator's written reviews are positive against 100% of BIG CALCULATOR.'s.

Calculator ships an update every 15 months, BIG CALCULATOR. every 3 weeks. The most recent releases landed on October 7, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Calculator | BIG CALCULATOR. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (5 ratings)](https://appshunter.io/ios/app/calculator-plus/id598278054/reviews) | **[4.5 (63 ratings)](https://appshunter.io/ios/app/big-calculator/id1114392920/reviews)** |
| Number of ratings | 5 | **63** |
| Positive reviews | 20.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 15 months | **Every 3 weeks** |
| Monetization | Ad-supported | Ad-supported |
| Size | 6 MB | 13 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ABCiSoft](https://appshunter.io/developer/409799840) | [Adysseus](https://appshunter.io/developer/447444997) |

## What reviewers say

### Calculator

[App page](https://appshunter.io/ios/app/calculator-plus/id598278054)

A straightforward calculator app designed for ease of use with large, legible digits. It offers a simple interface for quick calculations on mobile devices.

**Highlights:** Large, clear numbers, Simple interface, Easy calculations, Mobile-friendly design

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

**In-app purchases:** none


### BIG CALCULATOR.

[App page](https://appshunter.io/ios/app/big-calculator/id1114392920)

This utility app offers a straightforward and visually clear calculator experience, ideal for users of all ages. Its large numbers and dark interface enhance readability, while landscape mode support on iPhones and iPads provides added convenience.

**Highlights:** Large numbers for easy viewing, Simple and easy-to-see interface, Landscape mode support, Dark UI for eye comfort, Suitable for all ages

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Big Calculator Plus | $2.99 | per year |


## Frequently asked questions

### Is Calculator free?

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

### Is BIG CALCULATOR. free?

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

### Which has better reviews, Calculator or BIG CALCULATOR.?

BIG CALCULATOR. is rated higher. Calculator averages 1.8 out of 5 from 5 ratings, while BIG CALCULATOR. averages 4.5 from 63 ratings.

### Do Calculator or BIG CALCULATOR. have ads?

Both Calculator and BIG CALCULATOR. show ads.

### Which is updated more often, Calculator or BIG CALCULATOR.?

Calculator ships an update every 15 months, and BIG CALCULATOR. every 3 weeks. Most recently, Calculator was updated on October 7, 2026 and BIG CALCULATOR. 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.*