Comparison

rtl_tcp SDR vs QueenBee Language Interpreter

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

Head to head
About

rtl_tcp SDR

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.

Highlights
  • Listen to AM, FM, SSB, CW signals
  • View RF spectrum and waterfall
  • Connect to networked RTL-SDR peripherals
  • Supports Airspy HF+, SDRPlay, LimeSDR Mini
  • Direct connection to Hermes Lite 2
Features
Currently charting
Read full description

An RTL-SDR Software Defined Radio receiver app for iOS devices.  Listen to AM, FM, SSB and CW radio signals. View an RF spectrum and waterfall. Connect, via the rtl_tcp network protocol, to networked RTL-SDR USB peripherals. This app requires an external rtl_tcp server. iOS devices do not currently support the direct connection of USB peripherals such as an RTL-SDR. Thus, the use of this app requires network access to a server, such as a Raspberry Pi (or Mac), with an RTL-SDR unit plugged into its USB port, and running the rtl_tcp protocol at an TCP/IP network address accessible from your iOS device. This allows a Raspberry Pi (or Mac) to act, essentially, as the USB port adapter for your iOS device. The rtl_tcp SDR app can also connect to hfp_tcp for the Airspy HF+, rsp_tcp for SDRPlay devices, and lmm_tcp for the LimeSDR Mini; see GitHub for server source code. This app can also connect to a Hermes Lite 2 QRP transceiver directly, if it has a known IP address, or through an hl2_tcp server. No support is provided for installing any of the rtl_tcp or other tcp software needed to use this app (with a Raspberry Pi, or otherwise). Please do not download this app unless you are already familiar with Software Defined Radio, have an RTL-SDR or equivalent USB SDR peripheral, and have already installed and tested rtl_tcp on your Raspberry Pi, Mac, or other server. Note that this app requires a very high bandwidth network connection in order to receive streams of real-time RF samples from an RTL-SDR. It is recommended that your rtl_tcp server be on a wired connection rather than on the same WiFi as your iOS device.

About

QueenBee Language Interpreter

This AI-powered application provides real-time verbal language interpretation across 9 languages. It offers accurate, contextually relevant translations to help users overcome communication barriers in various situations. Review past conversations and customize settings for a seamless experience.

Highlights
  • Real-time verbal interpretation
  • 9 supported languages
  • AI-powered accuracy
  • Review past interpretations
  • Customizable translation settings
  • Intuitive interface
Features
Read full description

Experience real-time language interpretation like never before with our AI-powered app. Simply speak and receive instant verbal translations in any of our 9 supported languages. Our advanced AI ensures accurate and contextually relevant interpretations, bridging language barriers effortlessly. Key Features: - Real-time verbal interpretation in 9 languages - AI-powered accuracy for natural conversations - "Conversations" tab to review past interpretations - "Settings" tab to customize translations for your audience - Intuitive interface for seamless user experience Whether you're traveling abroad, conducting business meetings, or communicating with friends and family, our app provides the interpretation support you need. Experience the power of AI-driven language interpretation today.

Screenshots

rtl_tcp SDR3 screens
QueenBee Language Interpreter4 screens

Verdict

The call

The clearest difference is review sentiment: QueenBee Language Interpreter at 100% against rtl_tcp SDR's 40%. QueenBee Language Interpreter also leads on price (Free vs $12.99) and rating (5.0 vs 3.9). rtl_tcp SDR's advantage is ads (none vs shown) and chart position (#197 vs unranked). On in-app purchases and 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

QueenBee Language Interpreter is free to download; rtl_tcp SDR costs $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

QueenBee Language Interpreter holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: rtl_tcp SDR has 32 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 40% of rtl_tcp SDR's written reviews are positive against 100% of QueenBee Language Interpreter's.

UpkeepUpdate frequency

rtl_tcp SDR ships an update every 4 months, QueenBee Language Interpreter daily. The most recent releases landed on September 16, 2026 and June 1, 2026 respectively.

Scorecard9 real differences · 2 level
rtl_tcp SDR versus QueenBee Language Interpreter: the parameters behind the verdict, then further details
Parameterrtl_tcp SDRQueenBee Language Interpreter
Price$12.99Free — better
Rating3.9 (32 ratings)5.0 (6 ratings) — better
Positive reviews40.0% of reviews100.0% of reviews — better
Number of ratings32 — better6
Update frequencyEvery 4 monthsDaily — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationPaidAd-supported — better
Best chart rank#197 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.613.4 — better
Further details — not scored
Size3 MB21 MB
Age rating4+4+
DeveloperHotPaw ProductionsBeehive Advisors LLC

Customer experience

rtl_tcp SDR

All ratings32 ratings
Positive68.8%
Neutral9.4%
Negative21.9%
Written reviews30 reviews
Positive40.0%
Neutral16.7%
Negative43.3%

QueenBee Language Interpreter

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

rtl_tcp SDR

No in-app purchases

None

QueenBee Language Interpreter

No in-app purchases

Questions

Is rtl_tcp SDR free?
rtl_tcp SDR costs $12.99, with no in-app purchases.
Is QueenBee Language Interpreter free?
QueenBee Language Interpreter is free to download, with no in-app purchases.
Which has better reviews, rtl_tcp SDR or QueenBee Language Interpreter?
QueenBee Language Interpreter is rated higher. rtl_tcp SDR averages 3.9 out of 5 from 32 ratings, while QueenBee Language Interpreter averages 5.0 from 6 ratings.
Do rtl_tcp SDR or QueenBee Language Interpreter have ads?
QueenBee Language Interpreter shows ads; rtl_tcp SDR does not.
Which is updated more often, rtl_tcp SDR or QueenBee Language Interpreter?
rtl_tcp SDR ships an update every 4 months, and QueenBee Language Interpreter daily. Most recently, rtl_tcp SDR was updated on September 16, 2026 and QueenBee Language Interpreter on June 1, 2026.

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