Comparison

Frequency Conversion vs Antenna Tools

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Frequency Conversion

Features
Read full description

Frequency Converter is a fast, practical tool for converting frequency units and understanding wave measurements with clarity. Whether you work with audio, radio, electronics, telecommunications, physics, engineering, or education, this app helps you calculate and compare frequency values in seconds. Convert between common frequency units including Hz, kHz, MHz, GHz, and THz, and view related wave information such as wavelength and period where applicable. The clean interface is designed for quick input, easy reading, and smooth everyday use, making it useful for students, technicians, radio enthusiasts, engineers, teachers, and anyone who needs reliable frequency calculations on iPhone. Frequency Converter is built to make technical conversions simple. Enter a value, choose your units, and instantly see the converted result. Use it when studying wave behavior, checking signal ranges, comparing audio frequencies, reviewing RF bands, or working through science and electronics problems. The app also includes helpful reference content so you can better understand frequency ranges and their real-world meaning. Key features include: • Convert frequency values across Hz, kHz, MHz, GHz, and THz • Calculate related wave properties such as wavelength and period • Simple, readable conversion results • Conversion history for reviewing recent calculations • Reference information for common frequency ranges • Clean design for students, engineers, hobbyists, and professionals • Useful for audio, radio, wireless, electronics, physics, and telecom work • Supports quick calculations without unnecessary complexity Frequency Converter is ideal for learning, field work, lab use, classroom exercises, and everyday technical reference. From low-frequency audio signals to high-frequency wireless and electromagnetic waves, the app gives you a convenient way to move between units and understand the numbers behind wave behavior. Download Frequency Converter to make frequency, wavelength, and period calculations faster, clearer, and easier to manage. Thanks for your support and do visit nitrio.com for more apps for your iOS devices.

About

Antenna Tools

This utility app assists engineers, technicians, students, and radio enthusiasts with essential antenna and RF calculations. It simplifies complex formulas into easy-to-use calculators for designing, installing, or tuning antennas, providing fast and accurate results for field and lab use.

Highlights
  • Calculate antenna dimensions by frequency
  • Convert frequency to wavelength
  • Radio system setup tools
  • Quick technical calculations
  • Reliable field performance
Features
Read full description

Antenna Tools is a practical utility app designed to assist engineers, technicians, students, and radio enthusiasts with essential antenna and RF calculations. Whether you are designing, installing, or tuning antennas, this app provides fast and accurate results to support your work. Built for field and lab use, Antenna Tools simplifies complex radio frequency formulas into easy-to-use calculators. Key Features: Calculate antenna dimensions based on frequency. Instantly convert between frequency and wavelength. Useful tools for radio system setup and adjustments. Clean interface optimized for quick technical calculations. Reliable performance for field and workshop environments. Antenna Tools is a must-have companion for RF professionals, ham radio operators, and students working in wireless communication and antenna design.. in-app purchase included 
 Lifetime to Remove Ads Privacy Policy : https://docs.google.com/document/d/1Dn1gNdDP2AHL7sg-px4rxdLAcoGHlNB8/edit#heading=h.1ionsc3v3xmq Terms and Condition : https://docs.google.com/document/d/1t-LREPKByKaM0UkbIo4o0E1gdAYs21Oe30EfGxenEss/edit?usp=sharing

Screenshots

Frequency Conversion4 screens
Antenna Tools4 screens

Verdict

The call

The clearest difference is price: Antenna Tools at Free against Frequency Conversion's $2.99. Antenna Tools also leads on update cadence (every 4 months vs every 22 months) and iOS requirement (13.0 vs 17.6). Frequency Conversion's advantage is in-app purchases (none vs 1) and ads (none vs shown). On 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

CostPrice · In-app purchases · Ads · Monetization

Antenna Tools is free to download; Frequency Conversion costs $2.99 up front. Antenna Tools sells 1 one-off in-app purchase. Frequency Conversion asks for nothing beyond the download.

UpkeepUpdate frequency

Frequency Conversion ships an update every 22 months, Antenna Tools every 4 months. The most recent releases landed on September 11, 2026 and September 12, 2026 respectively.

Scorecard5 real differences · 4 level
Frequency Conversion versus Antenna Tools: the parameters behind the verdict, then further details
ParameterFrequency ConversionAntenna Tools
Price$2.99Free — better
Rating—5.0 (7 ratings) — better
Number of ratings—7 — better
Update frequencyEvery 22 monthsEvery 4 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS17.613.0 — better
Further details — not scored
Size2 MB58 MB
Age rating4+4+
DeveloperHeng Jia LiangNanjibhai Gorasiya

In-app purchases

None

Frequency Conversion

No in-app purchases

1 purchases

Antenna Tools

One-time1
  • Lifetime premium$9.99

Questions

Is Frequency Conversion free?
Frequency Conversion costs $2.99, with no in-app purchases.
Is Antenna Tools free?
Antenna Tools is free to download, with in-app purchases available.
Do Frequency Conversion or Antenna Tools have ads?
Antenna Tools shows ads; Frequency Conversion does not.
Which is updated more often, Frequency Conversion or Antenna Tools?
Frequency Conversion ships an update every 22 months, and Antenna Tools every 4 months. Most recently, Frequency Conversion was updated on September 11, 2026 and Antenna Tools on September 12, 2026.

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