# BLEASS Alpha Synthesizer vs Oscilloscope & Spectrogram

The clearest difference is price: Oscilloscope & Spectrogram at $5.99 against BLEASS Alpha Synthesizer's $14.99. Oscilloscope & Spectrogram also leads on in-app purchases (none vs 10) and update cadence (every 4 days vs every 2 months). BLEASS Alpha Synthesizer's advantage is rating (4.9 vs 4.6) and review sentiment (86% vs 70%). On ads and device support there is nothing between them.

BLEASS Alpha Synthesizer costs $14.99 and Oscilloscope & Spectrogram $5.99 up front. BLEASS Alpha Synthesizer sells 10 one-off in-app purchases. Oscilloscope & Spectrogram asks for nothing beyond the download.

BLEASS Alpha Synthesizer holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 108 and 28 respectively. Written reviews point the same way: 86% of BLEASS Alpha Synthesizer's written reviews are positive against 70% of Oscilloscope & Spectrogram's.

BLEASS Alpha Synthesizer ships an update every 2 months, Oscilloscope & Spectrogram every 4 days. The most recent releases landed on October 16, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | BLEASS Alpha Synthesizer | Oscilloscope & Spectrogram |
| --- | --- | --- |
| Price | $14.99 | **$5.99** |
| Rating | **[4.9 (108 ratings)](https://appshunter.io/ios/app/bleass-alpha-synthesizer/id1476042892/reviews)** | [4.6 (28 ratings)](https://appshunter.io/ios/app/oscilloscope-and-spectrogram/id1525484137/reviews) |
| Number of ratings | **108** | 28 |
| Positive reviews | **86.1% of reviews** | 70.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 38 MB | 3 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [BLEASS](https://appshunter.io/developer/1220444177) | [Blue Mangoo Consulting Company Limited](https://appshunter.io/developer/1475107602) |

## What reviewers say

### BLEASS Alpha Synthesizer

[App page](https://appshunter.io/ios/app/bleass-alpha-synthesizer/id1476042892)

This versatile polyphonic synthesizer offers a virtual analog sound engine inspired by classic hardware. It provides intuitive sound design tools, efficient CPU usage, and a unique motion sequencer for expressive modulation. Explore a vast library of presets and create unique sounds for your music.

**Highlights:** Virtual analog polyphonic stereo synthesizer, Intuitive sound design interface, CPU efficient for live performance, Unique motion sequencer, Built-in arpeggiator, Over 200 factory presets, Audio Unit V3 compatible

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sound Of Izrael Preset Pack | $2.99 | one-time |
| Red Sky Lullaby Preset Pack | $2.99 | one-time |
| MPE Preset Pack #1 | $3.99 | one-time |
| Lily Jordy Preset Pack | $3.99 | one-time |
| The GarageBand Guide Pack | $3.99 | one-time |
| Hoops Collection #1 | $3.99 | one-time |
| Yawdel Preset Pack | $3.99 | one-time |
| Funk Preset Pack | $3.99 | one-time |
| Torley Preset Pack | $4.99 | one-time |
| The Sound Test Room Pack | $4.99 | one-time |


### Oscilloscope & Spectrogram

[App page](https://appshunter.io/ios/app/oscilloscope-and-spectrogram/id1525484137)

Analyze audio in real-time with detailed oscilloscope and spectrogram views. Pause, scroll, and zoom to precisely identify frequencies, notes, and sound events. Offers advanced triggering and a unique Bark-frequency scale for detailed analysis.

**Highlights:** Real-time oscilloscope and spectrogram, Pause and scroll audio history, Pinch-to-zoom functionality, Frequency and MIDI note identification, Stereo and mono views, Trigger with lookahead

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is BLEASS Alpha Synthesizer free?

BLEASS Alpha Synthesizer costs $14.99, and also offers in-app purchases.

### Is Oscilloscope & Spectrogram free?

Oscilloscope & Spectrogram costs $5.99, with no in-app purchases.

### Which has better reviews, BLEASS Alpha Synthesizer or Oscilloscope & Spectrogram?

BLEASS Alpha Synthesizer is rated higher. BLEASS Alpha Synthesizer averages 4.9 out of 5 from 108 ratings, while Oscilloscope & Spectrogram averages 4.6 from 28 ratings.

### Do BLEASS Alpha Synthesizer or Oscilloscope & Spectrogram have ads?

Neither BLEASS Alpha Synthesizer nor Oscilloscope & Spectrogram shows ads.

### Which is updated more often, BLEASS Alpha Synthesizer or Oscilloscope & Spectrogram?

BLEASS Alpha Synthesizer ships an update every 2 months, and Oscilloscope & Spectrogram every 4 days. Most recently, BLEASS Alpha Synthesizer was updated on October 16, 2026 and Oscilloscope & Spectrogram on October 4, 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.*