SIMPlus vs UUUSIM
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.
UUUSIM
This app utilizes Bluetooth to enable your device to send and receive text messages, make phone calls, and access the internet. It leverages Bluetooth technology for seamless connectivity and functionality.
- Send and receive text messages via Bluetooth
- Make phone calls through Bluetooth
- Access 4G internet using Bluetooth
- Utilizes Bluetooth standard protocol
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UUU SIM is a Bluetooth standard protocol software that communicates with devices through a mobile phone's Bluetooth connection. You can use the app software to make phone calls and send and receive text messages through the SIM card on the device. UUU SIM devices also provide hotspot connections.
Screenshots
Verdict
The clearest difference is rating: SIMPlus at 3.6 against UUUSIM's 2.0. SIMPlus also leads on ratings volume (160 vs 10) and review sentiment (42% vs 33%). UUUSIM's advantage is in-app purchases (none vs 10). On price, update cadence, 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. UUUSIM asks for nothing beyond the download.
SIMPlus holds the better App Store score, 3.6 against 2.0. That said, the two scores are not equally well evidenced: SIMPlus has 160 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 42% of SIMPlus's written reviews are positive against 33% of UUUSIM's.
SIMPlus ships an update fortnightly, UUUSIM every 2 weeks. The most recent releases landed on October 12, 2026 and October 9, 2026 respectively.
| Parameter | SIMPlus | UUUSIM |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (160 ratings) — better | 2.0 (10 ratings) |
| Positive reviews | 41.6% of reviews — better | 33.3% of reviews |
| Number of ratings | 160 — better | 10 |
| Update frequency | Fortnightly — better | Every 2 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 — better | 15.6 |
| Further details — not scored | ||
| Size | 35 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | 均 魏 | 卫英 梁 |
Customer experience
SIMPlus
UUUSIM
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
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- 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
UUUSIM
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
UUUSIM
No in-app purchases
