# TB Flowtones vs NERD Synth A2x + AUv3

The clearest difference is update cadence: NERD Synth A2x + AUv3 at fortnightly against TB Flowtones's every 3 months. NERD Synth A2x + AUv3 also leads on ratings volume (1.3K vs 39) and price ($5.99 vs $9.99). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

TB Flowtones costs $9.99 and NERD Synth A2x + AUv3 $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

NERD Synth A2x + AUv3 holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: NERD Synth A2x + AUv3 has 1.3K ratings behind it against 39, so its average is the more settled of the two. Written reviews point the same way: 83% of TB Flowtones's written reviews are positive against 90% of NERD Synth A2x + AUv3's.

TB Flowtones ships an update every 3 months, NERD Synth A2x + AUv3 fortnightly. The most recent releases landed on September 22, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | TB Flowtones | NERD Synth A2x + AUv3 |
| --- | --- | --- |
| Price | $9.99 | **$5.99** |
| Rating | [4.7 (39 ratings)](https://appshunter.io/ios/app/tb-flowtones/id1576472437/reviews) | **[4.9 (1.3K ratings)](https://appshunter.io/ios/app/nerd-synth-a2x-plus-auv3/id6478898564/reviews)** |
| Number of ratings | 39 | **1.3K** |
| Positive reviews | 82.9% of reviews | **90.4% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Paid | Paid |
| Best chart rank | — | **#183** |
| Size | 17 MB | 242 MB |
| Requires iOS | **13.0** | 14.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ToneBoosters](https://appshunter.io/developer/1472446500) | [AudioKit Pro](https://appshunter.io/developer/1307785645) |

## What reviewers say

### 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


### NERD Synth A2x + AUv3

[App page](https://appshunter.io/ios/app/nerd-synth-a2x-plus-auv3/id6478898564)

**Currently charting:** #183 Top Paid · Music (US App Store)

This virtual analog synthesizer offers a powerful and intuitive sound design experience, inspired by classic hardware. Explore over 40 classic waveforms, a versatile arpeggiator, step sequencer, and lush effects to craft unique electronic music.

**Highlights:** Virtual Analog Synthesizer, 40+ Classic Waveforms, Arpeggiator, Step Sequencer, Lush Effects Suite, Four-voice Unison, AUv3 Plugin Support

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- ⭐ Outstanding synth
- 👍 Very nice and rich sounding
- 🎨 Great presets and sound design
- 🔧 Easy to use and intuitive
- 💻 Works well in AUv3 environments

**What reviewers complain about**

- 🐛 Doesn't show up in Logic
- 🔧 Needs to be more Mac-compatible
- 🔧 Changing presets can be sluggish
- 🔧 Missing aftertouch/expression support

**Reported bugs**

- Doesn't fit properly in Logic Pro for iPad
- Keyboard keys get stuck when using a controller

**Requested features**

- Dark mode option
- Undo/redo functionality
- Improved Logic Pro integration
- Ability to change color scheme


## Frequently asked questions

### Is TB Flowtones free?

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

### Is NERD Synth A2x + AUv3 free?

NERD Synth A2x + AUv3 costs $5.99, with no in-app purchases.

### Which has better reviews, TB Flowtones or NERD Synth A2x + AUv3?

NERD Synth A2x + AUv3 is rated higher. TB Flowtones averages 4.7 out of 5 from 39 ratings, while NERD Synth A2x + AUv3 averages 4.9 from 1.3K ratings.

### Do TB Flowtones or NERD Synth A2x + AUv3 have ads?

Neither TB Flowtones nor NERD Synth A2x + AUv3 shows ads.

### Which is updated more often, TB Flowtones or NERD Synth A2x + AUv3?

TB Flowtones ships an update every 3 months, and NERD Synth A2x + AUv3 fortnightly. Most recently, TB Flowtones was updated on September 22, 2026 and NERD Synth A2x + AUv3 on September 23, 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.*