Comparison

RM vs TB Flowtones

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

Head to head
About

RM

This audio effect app offers versatile modulation capabilities, including ring, amplitude, phase, and frequency modulation. It features a built-in carrier oscillator, multimode filter, envelope follower, and LFO for creating unique sounds. It can be used standalone or with other audio apps.

Highlights
  • Multiple modulation types (Ring, AM, FM, Phase)
  • Built-in carrier oscillator
  • Multimode filter (LP, HP, BP)
  • Envelope follower and LFO
  • Standalone and IAA/Audiobus support
  • AUv3 plugin compatibility
Features
Read full description

RM-1 Wave Modulator RM-1 is a multi purpose audio effect designed around various types of modulation. Featuring a built-in carrier oscillator, multimode filter, envelope follower and low frequency oscillator, RM-1 creates new sounds by combining carrier waveform and the audio input in different ways. Types of modulation: - Ring Modulation (virtual analog) - Ring Modulation (digital) - Amplitude Modulation - Phase Modulation (DX-style FM) - Frequency Modulation (linear) Overview: - Built-in carrier oscillator with variable wave-shape (sine->square) - Built-in multimode Filter (LP, HP, BP) - Built-in Envelope Follower and LFO Connectivity: - Standalone (MIC, USB audio) - IAA / Audiobus - AUv3 Plugin

About

TB Flowtones

This virtual analog synthesizer app offers a true VA synthesis engine with analog-modeled filters and extensive modulation options. Create warm, analog-sounding music with a powerful architecture, diverse waveforms, and pro-grade effects. It also includes an integrated step sequencer and hundreds of presets.

Highlights
  • True virtual analog synthesis engine
  • Analog-modelled non-linear filters
  • Extensive modulation options
  • Pro-grade studio effects
  • Integrated step sequencer
  • Hundreds of presets and intelligent randomizer
Currently charting
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TB Flowtones Virtual Analog Synthesizer app and AUv3 plug-in Thanks to it's true VA synthesis engine, the use of analog-modelled non-linear filters and extensive modulation options, Flowtones sounds warmer and more analog than digital romplers and wavetable-based synths. TB Flowtones comes as stand-alone app as well as AUv3 plugin. True virtual analog synthesis features: - 4 VCO architecture (two voice layers with two VCOs each) - 4 synthesis engine types, in part modelled after famous analog synthesisers - 36 analog VCO waveforms featuring all classic waveforms and more - All VCO waveforms support pulse width modulation - Full stereo and mono unison modes for each VCO independently - Noise and subharmonic oscillators for each VCO - Unique ring and self-modulation matrix - High-quality, warm, non-linear filters (VCF) with over 30 filter types, including unique multi-resonance filters Modulation features: - Four LFOs with 30 waveforms each - LFOs can modulate other LFOs, including themselves! - Three additional envelope generators, with key velocity modulation - Quick access to modulation strengths through context menus - Hundreds of modulation signal paths available - LFOs can produce noise as waveform to randomly modulate other parameters; for example to simulate slight variations in analog filter parameters as they happen in analog circuits. Pro-grade effects - Studio-quality reverb, delay, and chorus effects - Unique formant filter to add vocal character - Analog and digital distortion / bit crushing effects - Master equaliser and peak limiter for final touch - Non-linear power supply simulation for authentic interaction between notes Step sequencer - Fully integrated, intuitive step sequencer - Can trigger chords and note series / phrases - Can run asynchronously or synchronously to the host - Smart copy/paste of note series to improve workflow - Smart zoom: edit fine details while keeping an overview over the full sequence Presets and intelligent randomizer - Flowtones comes with hundreds of presets to spark your creativity - Intelligent randomizer to explore endless sound synthesis possibilities What you should know: - Licenses acquired for this platform are not compatible with other platforms. - Audio Unit (AUv3) extensions require an iPad mini 2, iPad 4 or later models.

Screenshots

TB Flowtones4 screens

Verdict

The call

The clearest difference is update cadence: TB Flowtones at every 3 months against RM's every 10 months. TB Flowtones also leads on review sentiment (83% vs 67%) and chart position (#188 vs unranked). RM's advantage is iOS requirement (9.0 vs 13.0). On price, rating, ratings volume and ads 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

RM costs $9.99 and TB Flowtones $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for RM against 4.7 for TB Flowtones. Both are backed by a comparable volume of ratings — 18 and 39 respectively. Written reviews are what separate them: 67% of RM's written reviews are positive against 83% of TB Flowtones's.

UpkeepUpdate frequency

RM ships an update every 10 months, TB Flowtones every 3 months. The most recent releases landed on September 19, 2026 and September 26, 2026 respectively.

Scorecard5 real differences · 6 level
RM versus TB Flowtones: the parameters behind the verdict, then further details
ParameterRMTB Flowtones
Price$9.99$9.99
Rating4.6 (18 ratings)4.7 (39 ratings) — better
Positive reviews66.7% of reviews82.9% of reviews — better
Number of ratings1839 — better
Update frequencyEvery 10 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank—#188 — better
DevicesiPadiPhone, iPad, iPod — better
Requires iOS9.0 — better13.0
Further details — not scored
Size35 MB17 MB
Age rating4+4+
DeveloperKai ArasToneBoosters

Customer experience

RM

All ratings18 ratings
Positive94.4%
Neutral0.0%
Negative5.6%
Written reviews6 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

TB Flowtones

All ratings39 ratings
Positive89.7%
Neutral7.7%
Negative2.6%
Written reviews35 reviews
Positive82.9%
Neutral11.4%
Negative5.7%

In-app purchases

None

RM

No in-app purchases

None

TB Flowtones

No in-app purchases

Questions

Is RM free?
RM costs $9.99, with no in-app purchases.
Is TB Flowtones free?
TB Flowtones costs $9.99, with no in-app purchases.
Which has better reviews, RM or TB Flowtones?
TB Flowtones is rated higher. RM averages 4.6 out of 5 from 18 ratings, while TB Flowtones averages 4.7 from 39 ratings.
Do RM or TB Flowtones have ads?
Neither RM nor TB Flowtones shows ads.
Which is updated more often, RM or TB Flowtones?
RM ships an update every 10 months, and TB Flowtones every 3 months. Most recently, RM was updated on September 19, 2026 and TB Flowtones on September 26, 2026.

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