Comparison

Mersenne 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

Mersenne

This app is an AUv3-compatible synthesizer designed to create bell-like metallic sounds. It combines FM synthesis, a noise generator, and a resonator for crafting clear tones and complex metallic textures.

Highlights
  • AUv3-compatible synthesizer
  • Dual FM synthesis modules
  • Noise generator
  • Resonator
  • Metallic sound design
  • Bell-like tones
Features
Read full description

Mersenne is an AUv3-compatible synthesizer that combines two FM synthesis modules, a noise generator, and a resonator to create bell-like metallic sounds. It is specifically designed for crafting both clear tones and complex textures with a distinctive metallic grit, making it an ideal tool for those deeply exploring metallic sound design. For more detailed information about the product, please visit the website. The website offers detailed product descriptions, manuals and videos, as well as important notices. https://icegear.net/

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
Read full description

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

Mersenne4 screens
TB Flowtones4 screens

Verdict

The call

The clearest difference is update cadence: Mersenne at monthly against TB Flowtones's every 3 months. Mersenne also leads on price ($8.00 vs $9.99). On rating, review sentiment, 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

Mersenne costs $8.00 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 — 4.7 for Mersenne against 4.7 for TB Flowtones. Both are backed by a comparable volume of ratings — 28 and 39 respectively. Written reviews are what separate them: 88% of Mersenne's written reviews are positive against 83% of TB Flowtones's.

UpkeepUpdate frequency

Mersenne ships an update monthly, TB Flowtones every 3 months. Both last shipped on October 24, 2026.

Scorecard2 real differences · 8 level
Mersenne versus TB Flowtones: the parameters behind the verdict, then further details
ParameterMersenneTB Flowtones
Price$8.00 — better$9.99
Rating4.7 (28 ratings) — better4.7 (39 ratings)
Positive reviews87.5% of reviews — better82.9% of reviews
Number of ratings2839 — better
Update frequencyMonthly — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size11 MB17 MB
Age rating4+4+
DevelopericeWorks, Inc.ToneBoosters

Customer experience

Mersenne

All ratings28 ratings
Positive92.9%
Neutral0.0%
Negative7.1%
Written reviews40 reviews
Positive87.5%
Neutral7.5%
Negative5.0%

TB Flowtones

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

In-app purchases

None

Mersenne

No in-app purchases

None

TB Flowtones

No in-app purchases

Questions

Is Mersenne free?
Mersenne costs $8.00, with no in-app purchases.
Is TB Flowtones free?
TB Flowtones costs $9.99, with no in-app purchases.
Which has better reviews, Mersenne or TB Flowtones?
Mersenne is rated higher. Mersenne averages 4.7 out of 5 from 28 ratings, while TB Flowtones averages 4.7 from 39 ratings.
Do Mersenne or TB Flowtones have ads?
Neither Mersenne nor TB Flowtones shows ads.
Which is updated more often, Mersenne or TB Flowtones?
Mersenne ships an update monthly, and TB Flowtones every 3 months. Most recently, Mersenne was updated on October 24, 2026 and TB Flowtones on October 24, 2026.

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