VB3m vs SoundTether
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VB3m
This app is a virtual tonewheel organ emulator, meticulously recreating the sound and functionality of the classic Hammond B3. It offers advanced features like dual manuals, pedalboard, physical modeling, and a versatile rotary speaker effect, all controllable via MIDI.
- Dual manuals and pedalboard
- Physical modeling engine
- Rotary speaker effect
- Tube overdrive simulation
- MIDI CC mapping
- AUv3 plugin support
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GSi VB3m simulates the famous american tonewheel organ better known as the Hammond Organ B3. Main features: - Two manuals plus pedalboard - Two sets of 9 drawbars each for upper and lower manual - Two drawbars for the pedalboard - Physical modeling engine with full polyphony (91 tonewheels) - Rotary speaker effect with two variations plus one static amp - Virtual microphone positioning - Tube overdrive simulation - Two band equalizer - Digital reverb - Program bank with 32 memory locations - On screen keyboard (upper manual only) - Split function - Pedal-to-lower function - Pedal String Bass decay - Global tuning between A=430 Hz and A=450 Hz - Fully customizable Midi CC Mapping with Midi Learn function - Reverse all drawbar CC option - Sustain pedal support for sustaining notes - User selectable Midi channels - Freely assignable Program Change numbers - Low latency Core Audio support - IAA support - AUv3 plugin extension included - Background audio option - Free Cloud service to easily exchange Programs and Midi Maps Please note: to connect a USB-Midi controller, please use Apple's Camera Connection Kit (Lightning to USB-A). Don't connect your recharge cable to a USB host port, that won't transfer Midi data. For better performance, make sure your battery is fully charged or power your device wherever possible. For more details, please read this Q&A article: https://lnx.gsidsp.com/help/knowledgebase.php?article=1
SoundTether
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Listen to your PC audio on your phone or connected earphones. 1. Download the free SoundTether PC app at soundtether.cottonray.com. 2. Open it on your PC to display the connection QR code. 3. Scan the QR code with your phone to connect. No account or manual address entry is needed. Check connection status and network latency. Audio keeps playing when the phone screen is off. Network conditions may affect connection and playback. Choose from English, Korean, Japanese, Simplified Chinese, Spanish, French, German, Portuguese and Russian in Settings. The camera is used only to scan the QR code. Photos and videos are not saved. An interstitial ad may appear when connecting. Remove ads Remove all ads with a one-time purchase. Restore purchases.
Screenshots
Verdict
The clearest difference is price: SoundTether at Free against VB3m's $14.99. SoundTether also leads on update cadence (every 5 days vs fortnightly). VB3m's advantage is in-app purchases (none vs 3) and ads (none vs shown).
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
SoundTether is free to download; VB3m costs $14.99 up front. SoundTether sells 3 one-off in-app purchases. VB3m asks for nothing beyond the download.
VB3m ships an update fortnightly, SoundTether every 5 days. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.
| Parameter | VB3m | SoundTether |
|---|---|---|
| Price | $14.99 | Free — better |
| Rating | 4.5 (40 ratings) — better | — |
| Positive reviews | 78.0% of reviews | — |
| Number of ratings | 40 — better | — |
| Update frequency | Fortnightly | Every 5 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 24 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Genuine Soundware | JEONG HYEON CHOI |
Bugs and requests
VB3m
Reported bugs
14 issues- Sound gets stuck
- Non funziona più (stops working)
- Non riesco più a sentire il suono (no sound after iPad update)
- Sounds get stuck, developer not responding
- UI is pixelated and needs a refresh
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- Graphics are very low res (needs fixing!)
- Blurry graphics on iPad Pro 12”
- Problems recording with GarageBand iOS
- Difficulty connecting with MIDI keyboard and audio interface on iPad 9th gen
- App screen goes dark and no sound when connected to MIDI/audio interface
- Minor bug: sometimes the app seems to lose track of the (swell) expression pedal
- Problema GarageBand: not working as Audio Unit with native GarageBand keyboard
- Latency issues on older iPhone models
- Battery drains when in background
Requested features
30 requests- Add parametric EQ
- Adjustable sustain
- Adjustable Leslie transition speed
- Save drawbar registrations
- Reverse color keys for quick access
Show 25 moreShow fewer
- Toggle setting for rotary control
- Increase UI size
- Add sustain pedal triggers bass note
- Add percussion volume control
- Add black keys to keyboard view
- Add up/down selector buttons for presets
- Option to save parameters globally or per preset
- Add MIDI learn
- Clean setting on drive knob
- Leslie speed switch on organ page
- More presets
- Integrate half moon Leslie directly on organ screen
- Add mute function for use with other apps
- Option to decide buffer size
- Transpose +2 octaves for lower split
- More Leslie tweaks (speed, ramp-up times, amp models)
- Add reverse color keys to keyboard page
- Allow rotary control to have 'toggle' setting
- Increase UI size
- Add user saved presets
- Add MIDI learn
- Clean setting on drive knob
- Leslie speed switch on organ page
- More presets
- Expression pedal mapping improvement
SoundTether
Not enough reviews yet to summarise bugs or requests.
In-app purchases
VB3m
No in-app purchases
SoundTether
- 커피 한 잔$0.49
- 커피 세 잔$1.99
- 커피 다섯 잔$2.99
