This keyboard app provides a dedicated number row on the top of your iPhone or iPad keyboard for faster and easier number input. It offers customizable themes, intelligent word suggestions, and quick access to symbols.
3.0(2 ratings)
$0.99
Best apps like RF-CALC
10+ similar apps compared and reviewed
4.6 avg rating
7 free apps
Updated July 2026
Whether you want more options like RF or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.
Top Alternatives to RF
5.0(1 ratings)
$2.99
This app offers rapid logging for amateur radio operators, featuring customizable templates and offline tools. It allows for direct logging on mobile devices, eliminating the need for later transcription, and can generate printable PDF logs.
RadioEquations by Robert J Sarvis Jr
Worth Considering
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5.0(2 ratings)
FreeIn-App Purchases
This utility app provides quick access to essential functions for radio telecommunications professionals. It includes helpful descriptions to ensure users understand each function, even if they are new to the field.
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4
Recollector App
by MapRecord Publications
Free
Manage and view your collections on your mobile device. This companion app syncs with desktop versions, allowing you to carry your cataloged items with you. Enjoy image viewing, searching, and sorting capabilities.
Collection viewing on mobileSyncs with PC/Mac versionsImage viewing
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free5
Command-Line Calculator
Calculator with History
Free
This app offers a command-line interface for performing complex calculations, including chained operations, variable assignments, and advanced mathematical functions. It supports various number bases, constants, and provides a built-in help system for ease of use.
Command-line interfaceChained calculationsVariable assignment
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free6
Jurassic Fuels
Great pricing, great value.
Free
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7
rtl_tcp SDR
RTL-SDR Software Defined Radio
$12.99
$19.99 | 35% OFF
This app acts as a software-defined radio receiver for iOS devices, allowing you to listen to various radio signals and view RF spectrum data. It connects to external SDR peripherals via a network protocol, requiring a separate server setup.
Listen to AM, FM, SSB, CW signalsView RF spectrum and waterfallConnect to networked RTL-SDR peripherals
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PROG_CALC
programmable calculator
Free
This app offers a programmable calculator with two distinct modes for daily computing and advanced mathematical functions. It supports system conversions between binary, octal, decimal, and hexadecimal, and allows for variable storage and code sharing.
Basic and advanced calculation modesSyntax parserVariable storage and editing
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free9
Packet Commander
Terminal for Packet Radio
Free
This app provides a classic terminal experience for packet radio communication on mobile devices. It offers powerful terminal features, smart connection management, and real-time over-the-air traffic monitoring. It's designed for amateur radio operators to connect with nodes, BBS, and decode traffic.
Full-screen terminal for packet nodes and BBSClassic color themes and adjustable layoutYAPP protocol support for file transfers
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QRV - Ham Radio Multitool
Spots, Band Plans & Widgets
Free
This app consolidates essential ham radio tools for efficient operation and DX success. It provides real-time band conditions, call sign lookups, DXpedition tracking, and built-in calculators. Premium features offer live spots and customized notifications.
Real-time band conditionsCall sign lookup (QRZ/HamQTH)DXpedition calendar and alerts
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freemium