Red Panic Button vs Big Button Calculator Pro Lite
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Red Panic Button
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.
- Send Panic SMS
- Send Panic Email
- Record voice message
- Customizable alert text
- Emergency Number feature
- Works with Apple Watch
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**Red Panic Button is now a universal app** When you are in trouble press the Red Panic Button! You just have to set a panic number or mail address and the phone will send a message which contains your address and location, determined using the fine GPS based or coarse GSM based coordinates. Features: - Send Panic SMS (works only on iPhone and iPad 3G) - Automatically send Panic email to designated email list - Retina display ready - Uses GPS/Network (where available on iPhone and iPad 3G) to determine your location or Wifi (on the iPod touch and iPad Wifi) - Emergency Number feature! You can now set the Emergency Number that is called at the press of the Red Panic Button. The number can be set from app settings. - Record voice feature! You can now send a recording to designated email list - Alert text customization Free features: -Send Panic SMS -Send Panic Email - Photo/video alert message - Audio alert message - One Secondary Alert - Works with Apple Watch - Works with BLE Alert Button Single User Subscription features: - No ADS - Unlimited panic contacts (We don't upload your contacts to server) - Unlimited Secondary Alerts Terms of use - https://www.redpanicbutton.com/legal/terms-of-use/ Privacy Policy - https://www.redpanicbutton.com/legal/privacy-policy/ Tips: - To reach more friends, multiple email addresses and phone numbers can be added - Stay tuned for more features ___ Red Panic Button requires internet connection in order to display the current address and send the email message. The Panic SMS feature does not work on iPod touch and iPad Wifi! Continued use of GPS running in the background can dramatically decrease battery life.
Big Button Calculator Pro Lite
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.
- Large buttons
- Dual-line display
- 18 color themes
- Multi-line input
- Gesture controls
- VoiceOver accessibility
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This is THE BEST calculator for iOS with big buttons and colorful backgrounds! This version is ad supported. ・Dual-line display - shows the input and result at the same time ・Percentage and backspace button ・18 color themes ・Multi-line input for really long equations ・Automatic scientific formatting ・VoiceOver accessibility ・Split View Gestures ・Swipe left on the display to backspace ・Swipe right on the display to clear ・Tap & hold on the result to copy ・Tap & hold on the input to move the cursor, copy, paste Customize ・Color Theme ・Sound URL Scheme: bigcalculatorpro://
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Red Panic Button | Big Button Calculator Pro Lite |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (17 ratings) | 4.7 (14K ratings) — better |
| Positive reviews | 28.2% of reviews | 83.1% of reviews — better |
| Number of ratings | 17 | 14K — better |
| Update frequency | Every 5 weeks — better | Every 3 months |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.2 |
| Further details — not scored | ||
| Size | 63 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | ULTIMATE COMMUNICATION SOFTWARE LTD | Cider Software LLC |
Customer experience
Red Panic Button
Big Button Calculator Pro Lite
Bugs and requests
Red Panic Button
Not enough reviews yet to summarise bugs or requests.
Big Button Calculator Pro Lite
Reported bugs
2 issues- Occasionally shows answer before calculation is complete
- Rounding issues leading to inaccurate results
Requested features
4 requests- Add more background options
- Allow custom background uploads
- Add option to change button colors
- Improve ad experience or offer ad-free version
In-app purchases
Red Panic Button
- Single User Full Version$0.991 Month
Big Button Calculator Pro Lite
No in-app purchases
Questions
Is Red Panic Button free?
Is Big Button Calculator Pro Lite free?
Which has better reviews, Red Panic Button or Big Button Calculator Pro Lite?
Do Red Panic Button or Big Button Calculator Pro Lite have ads?
Which is updated more often, Red Panic Button or Big Button Calculator Pro Lite?
Other comparisons
