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Best apps like RF-CALC

10+ similar apps compared and reviewed

4.6 avg rating
6 free apps
Updated September 2026
RF-CALC
RF-CALC
Julien Geissbuehler
📚 Education
🔧 Utilities

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

HamLog#1

HamLog by Pignology, LLC

Editor's Choice
🔧 Utilities
3.7😐(59 ratings)
$0.99
HamLog screenshot 1
HamLog screenshot 2
HamLog screenshot 3
HamLog screenshot 4
HamLog screenshot 5

This application serves as a comprehensive logging and tool suite for amateur radio operators. It facilitates contact logging, rig control, and offers numerous utilities for field and mobile operations. Features include callsign resolution, data export/import, and various radio-related calculators and information resources.

What We Love

  • 🚀 Comprehensive logging functionality with quick entry
  • 🛠️ Extensive built-in tools (65+) including QRZ lookup, DX cluster, grid calculator
  • 💰 Excellent value for money (originally $0.99)
  • ☁️ Cloud sync feature across devices

Room to Improve

  • ⚠️ Lack of active maintenance since 2023
  • 🐛 Frequent crashes on newer iOS versions
  • 🔗 Server-dependent features frequently non-functional
GPSTime#2

GPSTime by Gimin Kim

GPS and UTC Time converter
Strong Contender
🔧 Utilities
5.0(1 ratings)
Free
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GPSTime screenshot 4

This tool converts between GPS Time and UTC, supporting various formats like GPS Week, Gregorian calendar, and Modified Julian Date. It accurately handles leap seconds and saves conversion history for GNSS professionals, researchers, and students.

HAM QuickLog#3

HAM QuickLog by Mircules

Fast HAM Radio Logging & Tools
Worth Considering
🔧 Utilities
5.0(1 ratings)
$2.99
HAM QuickLog screenshot 1
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HAM QuickLog screenshot 6

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.

More apps like RF

4
RadioEquations
RadioEquations
RadioEquations
by Robert J Sarvis Jr
Free

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.

Access to common radio telecommunications functionsAccompanying descriptions for comprehensionDesigned for professionals in the field
🔧 Utilities
(2)
free
5
RST Scope
RST Scope
RST Scope
Spectrum&WaterFall Display App
Free

This utility app provides spectrum scope and waterfall displays for amateur radio operators. It enhances radios lacking these features by analyzing microphone input, allowing for clear distinction of Morse code and detailed audio frequency visualization.

Spectrum scope and waterfall displayMorse code distinction via FFTAdjustable waterfall speed
🔧 Utilities
(1)
ad-supported
6
Command-Line Calculator
Command-Line Calculator
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
🔧 Utilities
(5)
free
7
Jurassic Fuels
Jurassic Fuels
Jurassic Fuels
Great pricing, great value.
Free
🔧 Utilities
(0)
8
rtl_tcp SDR
rtl_tcp SDR
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
🔧 Utilities
(32)
paid
9
HAM-Toolbox
HAM-Toolbox
HAM-Toolbox
Tools for HAM-Radio Operators
$14.99

This utility app offers a comprehensive suite of tools for amateur radio operators, including band conditions, DX-Cluster monitoring, and a logbook. It features direct radio integration for tuning and automatic logging, along with various calculations and resource information.

DX-Cluster and PSK-Reporter activity monitoringBandplan, Glossar, and AWG resource informationBuilt-in radio integration for direct tuning
🔧 Utilities
(7)
paid
10
PROG_CALC
PROG_CALC
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
🔧 Utilities
(1)
free
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