SDR Receiver vs xBLEtz
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SDR Receiver
This app demodulates and plays AM and FM radio signals received by compatible SDR hardware. It allows users to listen to various broadcasts, manage station lists, and adjust audio settings. Requires a separate radio and host computer for operation.
- Demodulate AM and FM signals
- Manage station lists (import/export)
- Adjustable squelch and LNA gain
- Adjustable audio filters
- Signal strength indicator
- AirPlay audio streaming
- Lock Screen controls
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Demodulate and play AM and FM signals received by an RTL-SDR, Airspy HF+ or SDRplay radio. Requires a radio and a host computer which are not provided with SDR Receiver and must be separately installed and configured. Streams data from an rtl_tcp, hfp_tcp or rsp_tcp server application which are free and open source applications. The appropriate server application must be installed on the host computer and configured for the attached radio. SDR Receiver is a Software Defined Radio (SDR) that processes, demodulates and plays AM, narrowband FM and wideband FM signals. Listen to communications from aircraft (AM), amateur repeaters and VHF handhelds, police and fire, NOAA weather reports (narrowband FM) and commercial broadcasts (wideband FM). • Easily entered and managed lists of stations simplify station selection. • Export and import lists of stations in CSV or TSV format. • Adjustable squelch that works for both AM and FM signals. • Adjustable LNA gain (for RTL-SDR and SDRplay radios). • Adjustable audio high pass and low pass filters. • Audio AGC for AM, optimized for aircraft communications. • Selectable IQ Offset eliminates DC errors. • DC Blocker option reduces spurious errors. • Signal strength indicator that shows power level in the signal passband. • Multiple sampling rates to accommodate different network bandwidths. • Selectable 8-bit or 16-bit sample size streaming from Airspy HF+ and SDRplay radios. • Option to play audio over AirPlay to a HomePod, HomePod mini or any AirPlay compatible device. • Stream synchronized audio to multiple AirPlay 2 compatible devices. • Lock Screen shows controls and streaming station information. • Custom URLs enable another application on the same device to set the station and start streaming. • Supports VoiceOver. SDR Receiver processes signals that are streamed over the network from a host computer (Mac, PC or Raspberry Pi) that is attached by USB bus to an RTL-SDR, Airspy HF+ or SDRplay radio. An rtl_tcp server or equivalent application running on the host computer receives baseband IQ data from the radio and streams the sampled signals over the network to the iPhone or iPad running SDR Receiver. Requires an RTL-SDR, Airspy HF+ or SDRplay radio and a host computer which are not provided with the application. Support for 192 ksps and 384 ksps Airspy HF+ sampling rates requires Airspy HF+ firmware version R3.0.7 or later, and hfp_tcp version v.1.2.117 or later.
xBLEtz
Explore, connect to, and interact with Bluetooth Low Energy devices. This tool allows you to read, write, and receive notifications from device characteristics, and even replicate peripheral data structures.
- Discover available Bluetooth LE peripherals
- Connect to Bluetooth LE devices
- Browse device services and characteristics
- Read, write, and notify characteristic properties
- Replicate peripheral profiles
- Virtual peripheral mode
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The xBLEtz is the powerful tool to discover, connect and browse Bluetooth Low Energy peripherals (also known as Bluetooth Smart, or Bluetooth Light). The xBLEtz can replicate peripheral data structure, too. Key Features: - Discover for any available peripherals - Connect to the peripheral - Browse Services and Characteristics - Support Read,Write and Notify properties in Characteristic - Write to Characteristics in Binary and UTF-8 - Replicate peripheral profiles (such as Services, Characteristics and Descriptors) - Provide virtual peripheral mode - Advertise as a peripheral using replicated peripheral This app will work on iPhone 7 or later.
Screenshots
Verdict
The clearest difference is review sentiment: SDR Receiver at 73% against xBLEtz's 0%. SDR Receiver also leads on rating (4.1 vs 1.0) and ratings volume (15 vs 1). xBLEtz's advantage is price ($1.99 vs $9.99). On ads, in-app purchases, monetization model 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
SDR Receiver costs $9.99 and xBLEtz $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
SDR Receiver holds the better App Store score, 4.1 against 1.0. That said, the two scores are not equally well evidenced: SDR Receiver has 15 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 73% of SDR Receiver's written reviews are positive against 0% of xBLEtz's.
SDR Receiver ships an update every 4 months, xBLEtz every 10 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.
| Parameter | SDR Receiver | xBLEtz |
|---|---|---|
| Price | $9.99 | $1.99 — better |
| Rating | 4.1 (15 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 73.1% of reviews — better | 0.0% of reviews |
| Number of ratings | 15 — better | 1 |
| Update frequency | Every 4 months — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 2 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Transition Technology Ventures, LLC | Kouichi Abe |
Customer experience
SDR Receiver
xBLEtz
In-app purchases
SDR Receiver
No in-app purchases
xBLEtz
No in-app purchases









