iAntiTheft vs SIMPlus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iAntiTheft
This application provides robust security features to protect your phone from theft. It offers multiple alarm modes triggered by specific actions like cable unplugging, device movement, or removal from a pocket. The app intelligently detects calls and Siri usage to prevent false alarms and integrates with your device's security features.
- Four protection modes (Power, Motion, Pocket, Earphone)
- Smart Auto-Protection mode
- Call and Siri detection
- Integrates with Passcode, Touch ID, Face ID
- Maximizes volume automatically
- Runs reliably in the background
- Today Widget support
Read full descriptionHide full description
iAntiTheft: The Ultimate Anti-Theft Alarm App for Your Phone Protect your phone from theft with iAntiTheft, a powerful app packed with features designed to keep your device secure. Key Features: Four Powerful Protection Modes: • Power Mode: Triggers an alarm when the lightning cable is unplugged. • Motion Mode: Activates an alarm if the device is moved. • Pocket Mode: Alerts you when the phone is removed from your pocket. • Earphone Mode: Sounds an alarm if the earphones are unplugged. Smart Auto-Protection: • The smart mode automatically selects the most suitable protection setting with just one tap. Let the app choose the best mode for you effortlessly. Seamless Call & Siri Detection: • The app detects when you’re on a call or using Siri, ensuring the alarm doesn’t activate during these moments. Once the call ends, simply return your device to the required state to resume protection. Additional Features: • Fully integrates with your device’s passcode, Touch ID, and Face ID. • Automatically locks the volume at its maximum setting for added security. • Runs reliably in the background and lock mode. • Includes a convenient Today Widget in the Notification Center. • Designed with an optimized, user-friendly interface for a seamless experience. --------------------- Stay Connected: • Follow us on Twitter: http://www.twitter.com/iantitheft • Like us on Facebook: http://www.facebook.com/iantitheft • For any feedback, email us at: iantitheft@gmail.com
SIMPlus
This app enables dual SIM functionality on your iPhone, allowing you to use two numbers simultaneously. It also provides mobile phone capabilities for iPads and iPods, with integrated VoIP-PSTN calling for when Bluetooth devices are not connected.
- Dual SIM iPhone functionality
- Mobile functionality for iPad/iPod
- BLE-enabled connectivity
- VoIP-PSTN call integration
- Use two numbers simultaneously
Read full descriptionHide full description
SIMPlus is a BLE-enabled app that turns your iPhone into a dual sim phone and gives your iPad and iPod mobile phone functionality. VoIP-PSTN call also integrated when BLE device is not connected.
Screenshots
Verdict
The clearest difference is rating: iAntiTheft at 4.6 against SIMPlus's 3.6. iAntiTheft also leads on review sentiment (64% vs 41%) and ratings volume (1.2K vs 157). SIMPlus's advantage is update cadence (fortnightly vs every 2 months). On price, ads, in-app purchases and monetization model 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. iAntiTheft sells 1 one-off in-app purchase and SIMPlus sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
iAntiTheft holds the better App Store score, 4.6 against 3.6. That said, the two scores are not equally well evidenced: iAntiTheft has 1.2K ratings behind it against 157, so its average is the more settled of the two. Written reviews point the same way: 64% of iAntiTheft's written reviews are positive against 41% of SIMPlus's.
iAntiTheft ships an update every 2 months, SIMPlus fortnightly. The most recent releases landed on September 18, 2026 and September 21, 2026 respectively.
| Parameter | iAntiTheft | SIMPlus |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (1.2K ratings) — better | 3.6 (157 ratings) |
| Positive reviews | 64.5% of reviews — better | 41.2% of reviews |
| Number of ratings | 1.2K — better | 157 |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 16 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Hung Nguyen | 均 魏 |
Customer experience
iAntiTheft
SIMPlus
User reviews
iAntiTheft
From 1.2K App Store ratingsWhat we love
- 🚀 Lightning-fast and reliable
- 🔒 Effective security features
- 👍 Simple and user-friendly
- 💡 Customizable alarm sounds
Room to improve
- 🐛 Occasional bugs and crashes
- 🔋 High battery consumption
- 🔒 Alarm can be deactivated by turning off the device
- 👎 Limited free features
SIMPlus
From 157 App Store ratingsWhat we love
- 📱 Dual SIM functionality on iPhone
- 🚀 Fast call and message delivery
- 💰 Saves money on roaming charges
- 🎨 Improved UI design in recent updates
- 📞 Call recording feature
Room to improve
- 🔌 Requires app to stay open in background
- 🔊 Poor call audio quality and voice issues
- 📉 Frequent disconnections
- 🐛 Multiple connectivity problems
- 📱 Incompatible with some iOS versions
Bugs and requests
iAntiTheft
Reported bugs
3 issues- Incompatibility with newer iOS versions
- Alarm not triggering consistently
- Issues with volume control and muting
Requested features
4 requests- Prevent thief from turning off the device
- Add photo/video capture of the thief
- Integrate with Apple Watch for remote control
- Implement a delay option for alarm activation
SIMPlus
Reported bugs
20 issues- Call audio not working or distorted
- Device disconnects automatically after 1-2 minutes
- Bluetooth connection drops during calls
- Microphone not working with Bluetooth devices
- Network settings revert after saving
Show 15 moreShow fewer
- SMS messages display with Chinese characters
- Incoming calls show as 'unknown' contact
- App crashes on launch
- Connection failed error messages
- Device shows offline status
- Messages not saving after app close
- PIN code not saving
- Confirm button disappears on PIN entry
- Mobile data turns off unexpectedly
- Widget not auto-refreshing
- Time zone display incorrect
- Incoming calls not showing on Apple Watch
- No notification sound when locked
- App hangs with poor internet connection
- Incompatibility with iOS 17/18 updates
Requested features
20 requests- USSD code support for balance checks
- Apple Watch app integration
- Dark mode theme
- Conference call functionality
- Call waiting feature
Show 15 moreShow fewer
- Automatic OTP copying
- Separate ringtones for different SIMs
- Manual carrier selection option
- Background app operation without location services
- Contact synchronization
- SIM Toolkit (STK) application
- Default iOS dialer integration
- Network type selection (LTE only, etc.)
- Data roaming control options
- Widget auto-refresh
- Phone number display in app
- Scheduled message sending
- Call history from native phone app
- CarPlay support
- IMEI customization
In-app purchases
iAntiTheft
- Full Version$1.99
SIMPlus
- 10 minutes VOIP on SIMPlus$0.99
- SIMPlus Widget$0.99
- 20 minutes VOIP on SIMPlus$1.99
Show 7 moreShow fewer
- Remote Device Server Access 30 Days$1.99
- 60 minutes VOIP on SIMPlus$4.99
- 100 minutes voice call$7.99
- 120 minutes VOIP on SIMPlus$7.99
- 270 minutes VOIP on SIMPlus$14.99
- Remote Device Server Access 1 Year$19.99
- Remote Device Lifetime Access$49.99
