Calculator 4.0 vs KeyConnect
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator 4.0
Perform daily calculations with a clean interface and large buttons. Features include decimal support, a calculation log, and two themes. Regular updates ensure continuous improvement and new functionalities.
- Intuitive interface with large buttons
- Backspace key for corrections
- Decimal point or comma support
- Calculation display log
- Two customizable themes
- Regular updates with new features
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Do the math with Calculator 4.0. Our calculator app features a sleek and intuitive interface, with large buttons and a clear display for easy input and output. Plus, with the backspace key you can correct or change numbers. Other features of our calculator app include support for decimal point or decimal comma, a display log for your calculation, and two themes to choose from!. And with regular updates and new features being added all the time, our calculator app is always improving and getting even better. Download our calculator app today and experience the ultimate in calculation convenience and accuracy!
KeyConnect
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Key Connect is a secure, private password manager that keeps your logins and secret notes locked behind Face ID — entirely on your device. Your vault stores two types of entries: logins (website, username, and password) and secure notes (freeform private text). Everything is encrypted in the iOS Keychain, so your secrets never leave your phone. BUILT-IN PASSWORD GENERATOR Stop reusing weak passwords. Key Connect's generator creates strong random passwords or memorable passphrases in seconds. Choose your length, toggle uppercase, digits, and symbols, or switch to passphrase mode for something you can actually remember. Copy to clipboard with one tap — and it auto-clears after 30 seconds. PASSWORD HEALTH AUDIT The Health tab scans your entire vault and gives you an overall score out of 100. It flags: - Weak passwords that don't meet strength criteria - Reused passwords shared across multiple accounts - Old passwords that haven't been changed in over a year Tap any flagged entry to jump straight to editing it. CATEGORIES AND FAVORITES Organize entries into custom categories with icons and color-coded chips. Star your most-used logins to find them instantly in the Favorites tab. FAST, FOCUSED, PRIVATE No account required. No cloud sync. No ads. Key Connect is a single-purpose tool designed to do one thing well: protect your passwords and keep them at your fingertips.
Screenshots
Verdict
The clearest difference is in-app purchases: KeyConnect at none against Calculator 4.0's 1. KeyConnect also leads on ads (none vs shown). Calculator 4.0's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 17.0). On price 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. Calculator 4.0 sells 1 one-off in-app purchase. KeyConnect asks for nothing beyond the download.
| Parameter | Calculator 4.0 | KeyConnect |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (54 ratings) — better | — |
| Number of ratings | 54 — better | — |
| Update frequency | Fortnightly | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 65 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Edison Largo | Linh Phan Nhat Khanh |
In-app purchases
Calculator 4.0
- Remove Ads$5.99
KeyConnect
No in-app purchases









