Comparison

OB vs Guitar Analyzer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

OB

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
Read full description

OB-Xd is based on the Oberheim OB-X. It attempts to recreate its sound and behavior, but as the original was very limited in some important ways, a number of things were added or altered to the original design. OB-Xd was designed to sound as good and as rich as the original. It implements micro random detuning. Also, like many synths of the OB-X's generation, the OB-Xd has no internal effects so its sounds and textures can be greatly enhanced by the use of additional processing like chorus, reverb, delay, etc.

About

Guitar Analyzer

Features
Read full description

The Guitar Analyzer app is a tool for analyzing and fine-tuning your acoustic or electric guitar: - A highly accurate guitar tuner with a cent scale indicator - An automatic scale tuner for all strings - A sound analyzer with multiple types of visual graphs for both the entire fretboard and individual strings - A sustain meter with sustain measurement by duration and factor - A dual custom sound oscillator for certain tasks where you need to hear the resonant frequency of an object or the beats between two specified frequencies - Conveniently select from over 50 well-known guitar brands to create your own list of guitars to explore and quickly switch between them - Choose from three string tunings (standard 6-string guitar, standard 4-string bass, and custom tuning for up to 12 strings in any key from 127 MIDI keys across the entire octave range) - Adjustable microphone sensitivity, noise threshold, and a choice between 2 types of amplitude analysis (peak and RMS) With this app, you can accurately tune your guitar, adjust the scale, and even choose the best guitar from several. By recording the sound across all frets for each string, you can use the displayed graphs to identify fret defects or nut placement, see unevenness in the sound in different places, see where the problem might be by changing the pitch shift of the frets, find the "dead note" and its position on the fretboard, as well as the resonant frequency of the instrument

Screenshots

OB1 screens
Guitar Analyzer3 screens

Verdict

The call

The clearest difference is update cadence: Guitar Analyzer at weekly against OB's every 2 months. OB's advantage is price ($14.99 vs $19.99) and device support (3 vs 1). On ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

OB ships an update every 2 months, Guitar Analyzer weekly. The most recent releases landed on October 22, 2026 and October 16, 2026 respectively.

Scorecard4 real differences · 6 level
OB versus Guitar Analyzer: the parameters behind the verdict, then further details
ParameterOBGuitar Analyzer
Price$14.99 — better$19.99
Rating4.4 (65 ratings) — better—
Positive reviews57.0% of reviews—
Number of ratings65 — better—
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better17.6
Further details — not scored
Size25 MB8 MB
Age rating4+9+
DeveloperDiscoDSP LLCOleg Levkutnik

Bugs and requests

OB

Reported bugs

13 issues
  • 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)
Show 8 more
  • App suspends on iOS 14
  • No virtual keyboard in standalone app
  • AUv3 crashes when adding second instance
  • UI messed up in AU
  • Knobs don't line up with display
  • Wonky controls
  • Programmer page without menu, cannot save/open patches
  • LFOing filter cutoff jerky

Requested features

19 requests
  • Add last/high priority for mono patches
  • Increase polyphony to 8 voices
  • MIDI Learn functionality
  • Preset browser improvements (categories, scrolling)
  • Adjustable keyboard size
Show 14 more
  • GUI scaling/layout redesign for iPhone
  • Skins for GUI
  • MIDI keyboard in standalone mode
  • Effects
  • Preset manager
  • Zoom functionality for AUv3 on iPhone
  • Fix knob turning bugs
  • Add patch select in DAW apps
  • GUI color scheme options
  • Manual in settings
  • Import presets
  • Layering sounds (like original OBXa)
  • White pinstripes on blue background (cosmetic)
  • Mod wheel customization

Guitar Analyzer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

OB

No in-app purchases

None

Guitar Analyzer

No in-app purchases

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.
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 22, 2026 and Guitar Analyzer on October 16, 2026.

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