# OB vs Guitar Analyzer

The clearest difference is update cadence: Guitar Analyzer at weekly against OB's every 2 months. OB's advantage is rating (4.3 vs 4.0) and ratings volume (64 vs 1). On ads and in-app purchases there is nothing between them.

OB costs $14.99 and Guitar Analyzer $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

OB holds the better App Store score, 4.3 against 4.0. That said, the two scores are not equally well evidenced: OB has 64 ratings behind it against 1, so its average is the more settled of the two.

OB ships an update every 2 months, Guitar Analyzer weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | OB | Guitar Analyzer |
| --- | --- | --- |
| Price | **$14.99** | $19.99 |
| Rating | **[4.3 (64 ratings)](https://appshunter.io/ios/app/ob-xd-auv3-synth/id1465262829/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/guitar-analyzer/id6746745584/reviews) |
| Number of ratings | **64** | 1 |
| Positive reviews | 57.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free | — |
| Size | 25 MB | 8 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [DiscoDSP LLC](https://appshunter.io/developer/1465262828) | [Oleg Levkutnik](https://appshunter.io/developer/792134887) |

## What reviewers say

### OB

[App page](https://appshunter.io/ios/app/ob-xd-auv3-synth/id1465262829)

This app emulates the classic Oberheim OB-X synthesizer, offering its rich sound and behavior with added enhancements. It focuses on sonic quality and includes micro random detuning for authentic analog warmth. External effects are recommended to further shape its versatile soundscapes.

**Highlights:** Oberheim OB-X emulation, Recreates original sound and behavior, Added enhancements to original design, Micro random detuning, Rich and good sound quality

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🎶 Incredible sound quality
- ✨ Inspiring creative tool
- 🎹 Faithful emulation of classic synth
- 🎛️ Great for programming
- 🎚️ Useful presets

**What reviewers complain about**

- 🐛 Unusable UI on older devices
- 💻 Poor GUI scaling on iPad Pro
- 🎛️ Controls unresponsive or misaligned
- 📉 Limited functionality without updates
- 🤷‍♂️ No clear upgrade path

**Reported bugs**

- Crashes in Audiobus
- Cannot use in MIDI section of Audiobus
- Preset browser issues (scrolling, cut off banks)
- Automation bug with cutoff freq
- UI issues on iPad Pro (buttons misaligned, text cut off)

**Requested features**

- Add last/high priority for mono patches
- Increase polyphony to 8 voices
- MIDI Learn functionality
- Preset browser improvements (categories, scrolling)
- Adjustable keyboard size


### Guitar Analyzer

[App page](https://appshunter.io/ios/app/guitar-analyzer/id6746745584)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OB free?

OB costs $14.99, with no in-app purchases.

### Is Guitar Analyzer free?

Guitar Analyzer costs $19.99, with no in-app purchases.

### Which has better reviews, OB or Guitar Analyzer?

OB is rated higher. OB averages 4.3 out of 5 from 64 ratings, while Guitar Analyzer averages 4.0 from 1 ratings.

### Do OB or Guitar Analyzer have ads?

Neither OB nor Guitar Analyzer shows ads.

### Which is updated more often, OB or Guitar Analyzer?

OB ships an update every 2 months, and Guitar Analyzer weekly. Most recently, OB was updated on October 24, 2026 and Guitar Analyzer on October 24, 2026.

---

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