Ruismaker FM vs WebSDR
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ruismaker FM
Design unique percussion sounds from scratch with a flexible synthesis engine. Create everything from traditional drums to unconventional effects. Offers a standalone Euclidean sequencer for pattern creation and export options.
- FM synthesis engine for percussion
- Create custom drum sounds
- Euclidean sequencer
- AUv3 compatible
- No samples used
- MIDI CC controllable
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Here comes the the crazy twin-sister of Ruismaker, designed for people who want to design their own percussion sounds from scratch. Ruismaker FM's simple, yet flexible synthesis engine lets you create anything from snaredrums, kickdrums and spacy toms to weird and unconventional percussive sounds and effects. Ruismaker FM is a unique drumsynth plugin (i.e. it does not use samples), which is coupled with a creative Euclidean sequencer when run in standalone mode. The plugin is fully AUv3 (Audio Unit) compatible: - Seamless integration with Garageband and other AU hosts - Audio Unit Instrument: making music on iOS doesn't get more convenient - Supports AUv3 Multi-Out in AUM and ApeMatrix - Each sound is modeled using authentic analog and FM algorithms; - Comes with dozens of unique customizable models - Does not use any samples; all sounds are synthesized in realtime, on the fly - Light on the CPU, so you can run lots of Ruismaker FMs simultaneously - Fully automatable parameters (requires host support) and MIDI CC controllable - Has its own preset manager The standalone sequencer is refreshingly different: - Program patterns using Euclidean algorithms - Powerful random feature and mutation probability settings per channel - Syncs with Ableton Link or MIDI Clock - Exports WAV and MIDI - Compatible with Audiobus 3 (including MIDI IN/OUT mode) - CoreMIDI In and Out - AU MIDI output for on-screen pads User manual available on Ruismaker.com
WebSDR
This Audio Unit plugin allows musicians to incorporate live radio broadcasts into their music. It accesses Software Defined Radio streams from servers worldwide, offering unique audio textures for performances and mixes.
- Plays Software Defined Radio streams
- Integrates live radio audio into music
- Accesses global radio servers
- Supports various radio modes (LSB, USB, CW, AM, FM)
- Provides unique audio textures for mixes
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WebSDR is an Audio Unit Plugin that plays audio from Software Defined Radio (SDR) streams. It allows you to incorporate the sound of live radio into a live music performance. WHAT IS SOFTWARE DEFINED RADIO? A software defined radio is a device with an antenna that connects to a computer and allows it to receive live radio broadcasts. It features a wide variety of protocols; in addition to standard AM and FM modes found in most consumer radios it typically includes modes for LSB, USB, CW and other settings used to listen in on the CB radios used by taxi drives, marine weather stations, air traffic control towers, amateur radio enthusiasts and many other types of radio broadcasts. The signals you can access using this app are not your own local radio stations; rather they are the radio stations in the vicinity of a collection of free servers, many of them operated by universities. These servers are positioned in many different countries around the world so using this plugin you can listen in on a variety of radio signals in a wide variety of languages and cultures. WHAT DO PEOPLE USE THIS PLUGIN FOR? The crackly sound of an old-style AM broadcast or a conversation between taxi drivers on a CB radio is a musical flavour that can not be replicated with other plugins. If you are looking for some really unique and interesting material to include in your performances or mixes, this plugin will supply. LIMITATIONS This plugin requires Javascript in order to play sound. Unfortunately that means that the UI must be open the entire time you are using it. When the UI is closed Javascript stops running, similar to the way a website stops playing audio when you close a tab in your browser. NOTE: THIS IS AN AUDIO UNIT PLUGIN. IT RUNS INSIDE A HOST APP SUCH AS GarageBand.
Screenshots
Verdict
The clearest difference is review sentiment: Ruismaker FM at 83% against WebSDR's 21%. Ruismaker FM also leads on rating (5.0 vs 2.4) and update cadence (every 5 weeks vs every 11 months). On ratings volume, ads, in-app purchases and monetization model 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
Ruismaker FM costs $4.99 and WebSDR $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Ruismaker FM holds the better App Store score, 5.0 against 2.4. Both are backed by a comparable volume of ratings — 54 and 27 respectively. Written reviews point the same way: 83% of Ruismaker FM's written reviews are positive against 21% of WebSDR's.
Ruismaker FM ships an update every 5 weeks, WebSDR every 11 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.
| Parameter | Ruismaker FM | WebSDR |
|---|---|---|
| Price | $4.99 — better | $5.99 |
| Rating | 5.0 (54 ratings) — better | 2.4 (27 ratings) |
| Positive reviews | 83.3% of reviews — better | 20.6% of reviews |
| Number of ratings | 54 — better | 27 |
| Update frequency | Every 5 weeks — better | Every 11 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 14.5 |
| Further details — not scored | ||
| Size | 8 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Bram Bos | Blue Mangoo Consulting Company Limited |
Customer experience
Ruismaker FM
WebSDR
In-app purchases
Ruismaker FM
No in-app purchases
WebSDR
No in-app purchases
Questions
Is Ruismaker FM free?
Is WebSDR free?
Which has better reviews, Ruismaker FM or WebSDR?
Do Ruismaker FM or WebSDR have ads?
Which is updated more often, Ruismaker FM or WebSDR?
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