# Big Button Calculator Pro vs Smart Electronics GPS

The clearest difference is price: Smart Electronics GPS at Free against Big Button Calculator Pro's $9.99. Smart Electronics GPS also leads on iOS requirement (11.0 vs 15.2). Big Button Calculator Pro's advantage is chart position (#181 vs unranked). On update cadence, ads, in-app purchases and device support there is nothing between them.

Smart Electronics GPS is free to download; Big Button Calculator Pro costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 19, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Big Button Calculator Pro | Smart Electronics GPS |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[4.9 (463 ratings)](https://appshunter.io/ios/app/big-button-calculator-pro/id1131056963/reviews)** | — |
| Number of ratings | **463** | — |
| Positive reviews | 78.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Paid | — |
| Best chart rank | **#181** | — |
| Size | 27 MB | 80 MB |
| Requires iOS | 15.2 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cider Software LLC](https://appshunter.io/developer/465180756) | [HAK KANARY](https://appshunter.io/developer/1476220422) |

## What reviewers say

### Big Button Calculator Pro

[App page](https://appshunter.io/ios/app/big-button-calculator-pro/id1131056963)

**Currently charting:** #181 Top Paid · Utilities (US App Store)

A user-friendly calculator app featuring large, colorful buttons and a dual-line display for simultaneous input and result viewing. It supports long equations, offers customizable themes and sounds, and includes accessibility features.

**Highlights:** Dual-line display, Big buttons, 18 color themes, Multi-line input, Gesture controls, VoiceOver accessibility

**Features:** Vision Pro support

**In-app purchases:** none


### Smart Electronics GPS

[App page](https://appshunter.io/ios/app/smart-electronics-gps/id1476220423)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Big Button Calculator Pro free?

Big Button Calculator Pro costs $9.99, with no in-app purchases.

### Is Smart Electronics GPS free?

Smart Electronics GPS is free to download, with no in-app purchases.

### Do Big Button Calculator Pro or Smart Electronics GPS have ads?

Neither Big Button Calculator Pro nor Smart Electronics GPS shows ads.

### Which is updated more often, Big Button Calculator Pro or Smart Electronics GPS?

Big Button Calculator Pro ships an update every 2 months, and Smart Electronics GPS every 2 months. Most recently, Big Button Calculator Pro was updated on September 19, 2026 and Smart Electronics GPS on September 18, 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.*