# Multiple Tone Generator vs Viking Synth

The clearest difference is price: Multiple Tone Generator at Free against Viking Synth's $3.99. Multiple Tone Generator also leads on review sentiment (88% vs 71%). Viking Synth's advantage is in-app purchases (none vs 2) and ads (none vs shown). On rating, ratings volume, update cadence and device support there is nothing between them.

Multiple Tone Generator is free to download; Viking Synth costs $3.99 up front. Multiple Tone Generator sells 2 one-off in-app purchases. Viking Synth asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for Multiple Tone Generator against 4.7 for Viking Synth. Both are backed by a comparable volume of ratings — 66 and 42 respectively. Written reviews are what separate them: 88% of Multiple Tone Generator's written reviews are positive against 71% of Viking Synth's.

Multiple Tone Generator ships an update every 3 months, Viking Synth every 4 months. The most recent releases landed on October 10, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Multiple Tone Generator | Viking Synth |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.8 (66 ratings)](https://appshunter.io/ios/app/multiple-tone-generator/id954158579/reviews)** | [4.7 (42 ratings)](https://appshunter.io/ios/app/viking-synth/id1085274012/reviews) |
| Number of ratings | **66** | 42 |
| Positive reviews | **87.5% of reviews** | 71.2% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 5 MB | 11 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Loop-Sessions.LLC.](https://appshunter.io/developer/414215366) | [Blamsoft, Inc.](https://appshunter.io/developer/1051938244) |

## What reviewers say

### Multiple Tone Generator

[App page](https://appshunter.io/ios/app/multiple-tone-generator/id954158579)

Generate multiple audio signals with adjustable waveforms, frequencies, and volumes for each channel. Offers presets for guitar and bass tuning, with options to expand channel support.

**Highlights:** Multiple audio channels, Adjustable waveforms (Sine, Triangle, Squire, Saw), Precise frequency control (20Hz - 20000Hz), Individual channel volume and mute, Logarithmic frequency sliders, Guitar and bass tuning presets

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Increase channels from 6 to 16 | $1.99 | one-time |
| Always remove banner ads. | $4.99 | one-time |


### Viking Synth

[App page](https://appshunter.io/ios/app/viking-synth/id1085274012)

This app emulates a classic monophonic analog synthesizer with advanced DSP technology. It features three variable wave oscillators, dual ladder filters, an LFO, and two modulation busses for versatile sound design.  An intuitive interface and extensive preset library make it ideal for creating thick bass and rich lead sounds.

**Highlights:** Three continuously variable wave oscillators, Dual ladder filters (Lowpass/Highpass), Multi-wave LFO, Two modulation busses, Intuitive user interface with expandable controls, 228 presets including Bass, Lead, and Synthwave, State-of-the-art DSP for authentic sound

**In-app purchases:** none

**What reviewers like**

- 🎶 Great sound quality
- 💡 Versatile sound options
- 💰 Excellent value (free)
- 💻 Lightweight and efficient
- 🎹 Good for learning synthesis

**What reviewers complain about**

- ❓ Preset issues
- 🔌 Not a standalone app
- 🐛 Occasional crashes
- 💾 Settings not saving
- 🤷‍♂️ Difficult to find/use

**Reported bugs**

- Presets not showing up
- Presets disappear
- App not showing in AUv3 menu
- Settings not saving after iOS 14 update
- Crashes when opening presets browser

**Requested features**

- More subtle drive mode
- Categorized preset browser
- Polyphony option
- Dark mode
- More apps from developer


## Frequently asked questions

### Is Multiple Tone Generator free?

Multiple Tone Generator is free to download, with in-app purchases available.

### Is Viking Synth free?

Viking Synth costs $3.99, with no in-app purchases.

### Which has better reviews, Multiple Tone Generator or Viking Synth?

Multiple Tone Generator is rated higher. Multiple Tone Generator averages 4.8 out of 5 from 66 ratings, while Viking Synth averages 4.7 from 42 ratings.

### Do Multiple Tone Generator or Viking Synth have ads?

Multiple Tone Generator shows ads; Viking Synth does not.

### Which is updated more often, Multiple Tone Generator or Viking Synth?

Multiple Tone Generator ships an update every 3 months, and Viking Synth every 4 months. Most recently, Multiple Tone Generator was updated on October 10, 2026 and Viking Synth on October 12, 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.*