SDR Receiver vs SASER
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.
SASER
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1. SASER software capable of receiving the incoming signal for VLF stations by retranslating it with internal synthesizer engine. The stronger the signal of VLF radio station, the more sound amplification it produces. The scanner of SASER software capable of switching VLF radio stations according to a set of rules for predefined monitoring. 2. Derived hyperbolic function uses up to 1536 points of distributed network service, which lowers the potential risk of DDoS by 1536 times. SASER software capable of suppressing radio stations signal with digital processors resolution of up to 192-bit. The fundamental approach of SASER software is to organize unicasting translation using digital ether from existing radio stations and if no signal is present to switch to internal digital ether generator. 3. SASER software reproduces VLF network of radio stations without physical limitations of wave propagation. The algorithm of SASER software modem works not only on a spectral level, but also on the real-time event generator level by merging three levels of operation at once. 4. You can use the signals of VLF radio stations for unicast translation. SASER software can translate incoming signals into the internal network of 1536 points. 5. You can view the system of SASER software as a solution for transport networks used in VLF radio stations. 6. The sequencer of SASER software uses approximation operations in a spherical space for playback of resulting radio signals, formed in a presence of signal constellations.
Screenshots
Verdict
The clearest difference is update cadence: SASER at every 6 weeks against SDR Receiver's every 4 months. SASER also leads on price ($7.99 vs $9.99). On ads, in-app purchases, device support and iOS requirement 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 SASER $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.
SDR Receiver ships an update every 4 months, SASER every 6 weeks. The most recent releases landed on October 14, 2026 and October 1, 2026 respectively.
| Parameter | SDR Receiver | SASER |
|---|---|---|
| Price | $9.99 | $7.99 — better |
| Rating | 4.1 (15 ratings) — better | — |
| Positive reviews | 73.1% of reviews | — |
| Number of ratings | 15 — better | — |
| Update frequency | Every 4 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad | iPhone, iPad, Mac — better |
| Requires iOS | 17.0 | 16.2 — better |
| Further details — not scored | ||
| Size | 2 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Transition Technology Ventures, LLC | Ruslan Yusipov |
In-app purchases
SDR Receiver
No in-app purchases
SASER
No in-app purchases









