Comparison

Ruismaker FM vs WebSDR

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

Head to head
About

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.

Highlights
  • FM synthesis engine for percussion
  • Create custom drum sounds
  • Euclidean sequencer
  • AUv3 compatible
  • No samples used
  • MIDI CC controllable
Features
Read full description

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

About

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.

Highlights
  • 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
Features
Read full description

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

Ruismaker FM2 screens
WebSDR3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Ruismaker FM costs $4.99 and WebSDR $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
Ruismaker FM versus WebSDR: the parameters behind the verdict, then further details
ParameterRuismaker FMWebSDR
Price$4.99 — better$5.99
Rating5.0 (54 ratings) — better2.4 (27 ratings)
Positive reviews83.3% of reviews — better20.6% of reviews
Number of ratings54 — better27
Update frequencyEvery 5 weeks — betterEvery 11 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better14.5
Further details — not scored
Size8 MB20 MB
Age rating4+4+
DeveloperBram BosBlue Mangoo Consulting Company Limited

Customer experience

Ruismaker FM

All ratings54 ratings
Positive98.1%
Neutral1.9%
Negative0.0%
Written reviews36 reviews
Positive83.3%
Neutral8.3%
Negative8.3%

WebSDR

All ratings27 ratings
Positive33.3%
Neutral7.4%
Negative59.3%
Written reviews34 reviews
Positive20.6%
Neutral5.9%
Negative73.5%

In-app purchases

None

Ruismaker FM

No in-app purchases

None

WebSDR

No in-app purchases

Questions

Is Ruismaker FM free?
Ruismaker FM costs $4.99, with no in-app purchases.
Is WebSDR free?
WebSDR costs $5.99, with no in-app purchases.
Which has better reviews, Ruismaker FM or WebSDR?
Ruismaker FM is rated higher. Ruismaker FM averages 5.0 out of 5 from 54 ratings, while WebSDR averages 2.4 from 27 ratings.
Do Ruismaker FM or WebSDR have ads?
Neither Ruismaker FM nor WebSDR shows ads.
Which is updated more often, Ruismaker FM or WebSDR?
Ruismaker FM ships an update every 5 weeks, and WebSDR every 11 months. Most recently, Ruismaker FM was updated on October 24, 2026 and WebSDR on October 27, 2026.

Other comparisons