Locate misplaced items with a single touch. This app helps you find lost belongings by tracking anti-lost devices and provides two-way reminders when you're out of range. You can also set personalized 'do not disturb' times for uninterrupted use.





25+ iOS apps curated and reviewed
From beginner-friendly picks to power-user tools, our rfinder list covers 25+ iPhone apps updated through May 2026. Compare ratings, prices, and screenshots in one place.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | 2.2★ (12) | No | No | Jul 2026 | |
| 2 | Free | 4.2★ (237) | No | Yes | Jul 2026 | |
| 3 | Free | 2.8★ (16K) | No | No | Jul 2026 | |
| 4 | Free | 3.5★ (17) | No | No | Jul 2026 | |
| 5 | Free | 4.5★ (2.4K) | No | Yes | Jul 2026 | |
| 6 | Free | 4.5★ (3.5K) | Yes | No | Jul 2026 | |
| 7 | Free | 4.2★ (35) | No | No | Jul 2026 | |
| 8 | Free | 4.7★ (42K) | No | No | Jul 2026 |





Locate misplaced items with a single touch. This app helps you find lost belongings by tracking anti-lost devices and provides two-way reminders when you're out of range. You can also set personalized 'do not disturb' times for uninterrupted use.






Access a comprehensive, offline directory of amateur radio repeaters worldwide. Search by various criteria, view detailed information including distance and bearing, and easily submit updates. Optimized for both phones and tablets.






Locate your Apple devices, AirTags, and personal items. Share your location with friends and family, and receive directions to their whereabouts. Protect your data with lost mode and remote erase options.


Connect to the EchoLink network using your iOS device. This application allows validated Amateur Radio operators to access the system from virtually anywhere. Registration with a valid Amateur Radio callsign is required.


Scan your current network for suspicious devices and identify hidden cameras or bugs using advanced AI and Wi-Fi scanning. Protect your privacy in hotels, public spaces, and more by ensuring your environment is safe.


Scan and analyze all devices connected to your local network. This essential tool helps protect your privacy by identifying everything on your network. Regular updates ensure an improved user experience.


Access the extensive QRZ.COM database of amateur radio call signs on your mobile device. Instantly find information for over 1.2 million call signs globally, including license details and profile photos. Features include an interactive map, email functionality, and a call sign history.


Track your pet's location in real-time and monitor their health and activity levels. Set up virtual boundaries to receive alerts if your pet strays, and receive health insights to ensure their well-being. This app provides peace of mind for pet owners, whether their pet is an active adventurer or an indoor companion.


Detect electromagnetic fields (EMF) around you using your phone's sensors. Identify high-radiation zones in your home and workplace to better organize your environment and potentially improve well-being. Measure EMF emitted by various electronic devices and appliances.


Scan your surroundings and Wi-Fi networks for unusual devices that may compromise your privacy. Detect hidden cameras, GPS trackers, and other potential threats using AI lens detection and network scanning. Stay safe and secure in hotels, at home, or in any sensitive location.


Prepare for your Technician Class FCC Amateur Radio License exam. Review official question pools, take topic-specific quizzes, and simulate the actual exam. Track your progress and find local exam sessions.


This app helps you protect your privacy by scanning your surroundings for hidden cameras and suspicious recording devices. It transforms your phone into a reliable detector, offering peace of mind in any unfamiliar environment.


Easily locate lost Bluetooth devices like earbuds, smartwatches, and trackers. The app uses proximity indicators and vibrations to guide you closer to your missing items. Manage subscriptions through your Apple ID settings.


Transform your iPhone into an EMF detector to monitor electromagnetic fields. Identify radiation levels in various environments to assess safety at home, work, or in public spaces. Gain insights to make informed decisions about your surroundings.


Protect your privacy by scanning your surroundings for hidden spy cameras. This app offers multiple detection methods, including Wi-Fi scanning and infrared detection, to help you identify suspicious devices in any location.


Instantly look up amateur radio callsigns to find contact details, including distance, bearing, and local time. This reference tool helps ham radio operators quickly access essential information for their communications.


This app transforms your device into a professional sound level meter, precisely measuring ambient noise pressure. It offers advanced features like frequency analysis, historical data management, and dosimeter functions, making it useful for various applications and entertainment.


Identify all devices on your WiFi network to understand who is connected, check for security threats, and troubleshoot network issues. It offers tools for speed testing, device analysis, and security alerts, with advanced features available through an optional hardware add-on.


This utility app helps engineers and students calculate and convert RF-specific values like impedance, wavelength, and return loss. It also includes a calculator for comparing RF cables and assemblies, and provides access to product catalogs and branch information.


Protect your privacy by detecting hidden cameras in hotels, Airbnbs, and public spaces. This app offers multiple scanning methods, including Wi-Fi, Bluetooth, IR, magnetic, and lens detection, to help you identify and locate spying devices. Get peace of mind knowing your personal space is secure.