# NuRack Auv3 FX Processor vs TB Flowtones

The clearest difference is update cadence: NuRack Auv3 FX Processor at every 3 weeks against TB Flowtones's every 3 months. NuRack Auv3 FX Processor also leads on chart position (#197 vs unranked) and price ($7.99 vs $9.99). On rating, review sentiment, ratings volume and ads there is nothing between them.

NuRack Auv3 FX Processor costs $7.99 and TB Flowtones $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.7 for NuRack Auv3 FX Processor against 4.7 for TB Flowtones. Both are backed by a comparable volume of ratings — 42 and 39 respectively. Written reviews are what separate them: 84% of NuRack Auv3 FX Processor's written reviews are positive against 83% of TB Flowtones's.

NuRack Auv3 FX Processor ships an update every 3 weeks, TB Flowtones every 3 months. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | NuRack Auv3 FX Processor | TB Flowtones |
| --- | --- | --- |
| Price | **$7.99** | $9.99 |
| Rating | [4.7 (42 ratings)](https://appshunter.io/ios/app/nurack-auv3-fx-processor/id1520146960/reviews) | [4.7 (39 ratings)](https://appshunter.io/ios/app/tb-flowtones/id1576472437/reviews) |
| Number of ratings | **42** | 39 |
| Positive reviews | **84.4% of reviews** | 82.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Paid | Paid |
| Best chart rank | **#197** | — |
| Size | 26 MB | 17 MB |
| Requires iOS | 13 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [4Pockets.com](https://appshunter.io/developer/370131860) | [ToneBoosters](https://appshunter.io/developer/1472446500) |

## What reviewers say

### NuRack Auv3 FX Processor

[App page](https://appshunter.io/ios/app/nurack-auv3-fx-processor/id1520146960)

**Currently charting:** #197 Top Paid · Music (US App Store)

Design custom audio and MIDI effects racks with over 80 building blocks. Route audio in series or parallel and create unique interfaces for your sound processing needs.

**Highlights:** Design custom effects racks, Over 80 audio and MIDI building blocks, Full routing control (series/parallel), Customizable interface builder, Seamless effect switching, 3 independent audio racks mode, Extensive automation options

**In-app purchases:** none


### TB Flowtones

[App page](https://appshunter.io/ios/app/tb-flowtones/id1576472437)

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

**In-app purchases:** none


## Frequently asked questions

### Is NuRack Auv3 FX Processor free?

NuRack Auv3 FX Processor costs $7.99, with no in-app purchases.

### Is TB Flowtones free?

TB Flowtones costs $9.99, with no in-app purchases.

### Which has better reviews, NuRack Auv3 FX Processor or TB Flowtones?

NuRack Auv3 FX Processor and TB Flowtones are both rated 4.7 out of 5 on the App Store, from 42 and 39 ratings respectively.

### Do NuRack Auv3 FX Processor or TB Flowtones have ads?

Neither NuRack Auv3 FX Processor nor TB Flowtones shows ads.

### Which is updated more often, NuRack Auv3 FX Processor or TB Flowtones?

NuRack Auv3 FX Processor ships an update every 3 weeks, and TB Flowtones every 3 months. Most recently, NuRack Auv3 FX Processor was updated on October 15, 2026 and TB Flowtones on October 8, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*