SIMPlus vs SIMBOX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
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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.
SIMBOX
This app provides remote access to multiple physical SIM cards from a single smartphone, eliminating the need for multiple devices or expensive roaming fees. Users can manage calls and texts from their home country numbers while traveling globally, ensuring seamless communication and cost savings.
- Remote SIM access
- No roaming charges
- Native call/SMS experience
- 24/7 connectivity
- Universal network support
- Simple setup
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Tired of carrying multiple phones or paying exorbitant international roaming fees? SIMBOX is the ultimate multi-card solution, giving you remote access and full control over up to four physical SIM cards from a single smartphone. Just leave your SIMBOX device plugged in at home and travel the world worry-free! Roam-Free Global Communication Access your home-country SIMs via 4G/3G/2G internet, no matter where your travels take you. - No Roaming Charges: Make and receive calls/SMS on your home numbers while abroad—saving you money instantly. - Native Experience: Enjoy the same reliable, high-quality calling experience as if the SIM was in your phone. - Seamless SMS: Send and receive verification codes and messages without interruption. Key Features & Benefits SIMBOX simplifies your life with secure, 24/7 connectivity. - Remote Access: Global connection to your SIMs from anywhere. 24/7 Power: The device stays plugged in at home (DOCK)—no battery charging required. Universal Support: Compatible with 2G, 3G, and 4G networks across all major carriers. Simple Setup: Download the app, register, and connect your SIMBOX device in minutes. Who Needs SIMBOX? - Global Travelers/Commuters: Travel freely between cities/countries and keep your local number active without missed calls or roaming costs. - Multi-Identity Users: Easily separate business, personal, and secondary lines for clear management and privacy. - New Card Applicants: Keep your old, frequently used number active while enjoying promotional offers from a new carrier. Manage your phone numbers efficiently, save money on roaming, and simplify your life with SIMBOX!
Screenshots
Verdict
The clearest difference is rating: SIMPlus at 3.6 against SIMBOX's 2.2. SIMPlus also leads on review sentiment (41% vs 18%) and update cadence (fortnightly vs every 5 weeks). SIMBOX's advantage is in-app purchases (none vs 10) and iOS requirement (12.0 vs 15.0). 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. SIMPlus sells 10 one-off in-app purchases. SIMBOX asks for nothing beyond the download.
SIMPlus holds the better App Store score, 3.6 against 2.2. That said, the two scores are not equally well evidenced: SIMPlus has 157 ratings behind it against 28, so its average is the more settled of the two. Written reviews point the same way: 41% of SIMPlus's written reviews are positive against 18% of SIMBOX's.
SIMPlus ships an update fortnightly, SIMBOX every 5 weeks. The most recent releases landed on September 21, 2026 and August 23, 2026 respectively.
| Parameter | SIMPlus | SIMBOX |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (157 ratings) — better | 2.2 (28 ratings) |
| Positive reviews | 41.2% of reviews — better | 17.9% of reviews |
| Number of ratings | 157 — better | 28 |
| Update frequency | Fortnightly — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 27 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | 均 魏 | HONGKONG UCLOUDLINK NETWORK TECHNOLOGY LIMITED |
Customer experience
SIMPlus
SIMBOX
Bugs and requests
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
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- 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
SIMBOX
Not enough reviews yet to summarise bugs or requests.
In-app purchases
SIMPlus
- 10 minutes VOIP on SIMPlus$0.99
- SIMPlus Widget$0.99
- 20 minutes VOIP on SIMPlus$1.99
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- 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
SIMBOX
No in-app purchases
