# Red Panic Button vs Big Button Calculator Pro Lite

The clearest difference is review sentiment: Big Button Calculator Pro Lite at 83% against Red Panic Button's 28%. Big Button Calculator Pro Lite also leads on rating (4.7 vs 2.5) and in-app purchases (none vs 1). Red Panic Button's advantage is update cadence (every 5 weeks vs every 3 months) and iOS requirement (13.0 vs 15.2). On price, ads and device support there is nothing between them.

Both are free to download. Red Panic Button sells 1 in-app purchase, starting at $0.99 per month. Big Button Calculator Pro Lite asks for nothing beyond the download.

Big Button Calculator Pro Lite holds the better App Store score, 4.7 against 2.5. That said, the two scores are not equally well evidenced: Big Button Calculator Pro Lite has 14K ratings behind it against 17, so its average is the more settled of the two. Written reviews point the same way: 28% of Red Panic Button's written reviews are positive against 83% of Big Button Calculator Pro Lite's.

Red Panic Button ships an update every 5 weeks, Big Button Calculator Pro Lite every 3 months. The most recent releases landed on August 26, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Red Panic Button | Big Button Calculator Pro Lite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (17 ratings)](https://appshunter.io/ios/app/red-panic-button/id422029296/reviews) | **[4.7 (14K ratings)](https://appshunter.io/ios/app/big-button-calculator-pro-lite/id1131056808/reviews)** |
| Number of ratings | 17 | **14K** |
| Positive reviews | 28.2% of reviews | **83.1% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 63 MB | 45 MB |
| Requires iOS | **13.0** | 15.2 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ULTIMATE COMMUNICATION SOFTWARE LTD](https://appshunter.io/developer/422029299) | [Cider Software LLC](https://appshunter.io/developer/465180756) |

## What reviewers say

### Red Panic Button

[App page](https://appshunter.io/ios/app/red-panic-button/id422029296)

This app provides a one-touch solution for emergencies. Upon activation, it sends your location and a customizable alert message via SMS or email to pre-set contacts. It also offers features like voice recording and emergency number dialing.

**Highlights:** Send Panic SMS, Send Panic Email, Record voice message, Customizable alert text, Emergency Number feature, Works with Apple Watch

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Single User Full Version | $0.99 | per month |


### Big Button Calculator Pro Lite

[App page](https://appshunter.io/ios/app/big-button-calculator-pro-lite/id1131056808)

A user-friendly calculator app featuring large buttons and customizable colorful backgrounds. It offers a dual-line display, multi-line input for complex equations, and convenient gesture controls for editing and copying.

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

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 💡 Customizable backgrounds
- 🚀 Accurate calculations
- 👍 Large, clear numbers
- 👍 Helpful for homeschooling

**What reviewers complain about**

- 🐛 Ads can be intrusive
- 🐛 Ads in foreign languages
- 🐛 Ads take time to close
- 🔋 High battery consumption due to ads

**Reported bugs**

- Occasionally shows answer before calculation is complete
- Rounding issues leading to inaccurate results

**Requested features**

- Add more background options
- Allow custom background uploads
- Add option to change button colors
- Improve ad experience or offer ad-free version


## Frequently asked questions

### Is Red Panic Button free?

Red Panic Button is free to download, with in-app purchases available.

### Is Big Button Calculator Pro Lite free?

Big Button Calculator Pro Lite is free to download, with no in-app purchases.

### Which has better reviews, Red Panic Button or Big Button Calculator Pro Lite?

Big Button Calculator Pro Lite is rated higher. Red Panic Button averages 2.5 out of 5 from 17 ratings, while Big Button Calculator Pro Lite averages 4.7 from 14K ratings.

### Do Red Panic Button or Big Button Calculator Pro Lite have ads?

Both Red Panic Button and Big Button Calculator Pro Lite show ads.

### Which is updated more often, Red Panic Button or Big Button Calculator Pro Lite?

Red Panic Button ships an update every 5 weeks, and Big Button Calculator Pro Lite every 3 months. Most recently, Red Panic Button was updated on August 26, 2026 and Big Button Calculator Pro Lite on September 23, 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.*