This app helps detect hidden surveillance devices in private spaces like hotels and rentals. It scans for hidden cameras, Wi-Fi, and Bluetooth devices, providing detailed reports to protect your privacy.
5.0(2 ratings)
FreeIn-App Purchases
Best apps like Card U-卡友制作明信片寄送
35+ similar apps compared and reviewed
3.9 avg rating
9 free apps
Updated July 2026
Card U is great, but it's not the only option. Explore 35+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.
Top Alternatives to Card U
Intelligent Robot Vacuums by 灿杰 郑
Strong Contender
🔧 Utilities
1.0(2 ratings)
Free
Control your smart robot vacuums remotely. Start, pause, or stop cleaning sessions, set custom schedules, and adjust suction power. Share access with friends and family, and find support resources within the app.
天文望远镜AR by Shenzhen Augmreal Technology Co., Ltd.
Worth Considering
🔧 Utilities
0.0(0 ratings)
Free
More apps like Card U
4
手机管家 - 一键清理垃圾照片助手软件
自动清理优化手机中视频、照片、截图等相册
Free
This app helps declutter your phone by automatically identifying and removing duplicate photos, screenshots, and expired reminders. It also offers features like contact merging, hardware information display, and customizable widgets.
One-click duplicate photo and screenshot cleanupAutomatic deletion of expired remindersContact merging for duplicate entries
🔧 Utilities
(8)
freemium5
皮皮动画
by Pencilstub
Free
🔧 Utilities
(0)
6
AI Salt-AI Photo Generator
AI Face Swap,Portrait,Image
Free
This AI-powered tool generates professional-grade portraits and headshots from user-uploaded photos. It offers face-swapping capabilities and a user-friendly interface for creating polished images for various platforms.
AI-generated portraitsProfessional headshot creationFace swap functionality
🔧 Utilities
(5)
free with in-app purchases7
Sorar AI - AI Video
AI Painter,Text-to-Video,Anime
Free
Transform your photos and ideas into unique digital art and videos. Upload images or use text prompts to generate AI-powered paintings and animations in various styles, including cartoon and oil painting. Create personalized cartoon characters from pet photos.
Text-to-video generationAI text-to-image paintingPhoto style transformation
🔧 Utilities
(15)
free with in-app purchases8
早安语录-励志正能量文案
by 祥龙 王
Free
Start your day with uplifting morning quotes and positive energy messages. This app provides daily affirmations and greetings to boost your mood and confidence, helping you attract potential clients.
Daily positive morning quotesUplifting mood messagesConfidence boosting affirmations
🔧 Utilities
(2)
ad-supported9
条形码生成器-扫描器
条码扫描制作器
Free
Quickly generate and scan barcodes and QR codes. Customize designs, share them as images, and save them to your local album. The app also keeps a history of scans and creations, with export options.
Fast barcode/QR code scanningOne-click creation and generationCustomizable design styles
🔧 Utilities
(2)
free with in-app purchases10
黑白短信 - 过滤短信拦截防骚扰
by 磊 岑
$0.99
This app intelligently filters and blocks unwanted messages, including spam, scams, and ads. It offers customizable rules and a powerful machine learning model for high recognition accuracy. Enjoy a clean, ad-free experience with offline blocking for enhanced privacy and security.
Intelligent spam, scam, and ad blockingCustomizable keyword blacklists and whitelistsOffline message filtering
🔧 Utilities
(12)
paid