YMCK Player 2 vs OB
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
YMCK Player 2
This musical instrument app allows you to play solos by sliding or tilting your device. It offers multiple key/scale assignments and scene memory for live performances, with light and dark themes for different stage environments.
- Slide to play solos
- Tilt for vibrato and scrolling
- Multiple key/scale assignments
- Scene memory for live shows
- Light/Dark color themes
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YMCK Player 2 is a simple musical instrument. You can play a stunning solo only by sliding on the screen or by tilting the device. This version "2" is more focused on the functionalities useful in your live stage than decorative visuals. * Easy to play Slide on the screen. That's all you need to play a solo. Additionally you can tilt the device vertically to scrool the keyboard and tilt it backward to apply vibrato. * Multiple Key/Scales You can assign multiple key/scales in a single screen, which allows you to use it in a song with key changes. * Scene Memory You can register multiple Scenes, and switch quickly the settings during your live show. * Color Themes Light/Dark color themes. Dark theme will help you operating in a dark stage environment.
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.
- Oberheim OB-X emulation
- Recreates original sound and behavior
- Added enhancements to original design
- Micro random detuning
- Rich and good sound quality
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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.
Screenshots
Verdict
The clearest difference is review sentiment: OB at 57% against YMCK Player 2's 0%. OB also leads on rating (4.3 vs 3.0) and update cadence (every 2 months vs every 41 months). YMCK Player 2's advantage is price ($1.99 vs $14.99). On ads, in-app purchases, device support and iOS requirement 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
YMCK Player 2 costs $1.99 and OB $14.99 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 3.0. 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. Written reviews point the same way: 0% of YMCK Player 2's written reviews are positive against 57% of OB's.
YMCK Player 2 ships an update every 41 months, OB every 2 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | YMCK Player 2 | OB |
|---|---|---|
| Price | $1.99 — better | $14.99 |
| Rating | 3.0 (1 ratings) | 4.3 (64 ratings) — better |
| Positive reviews | 0.0% of reviews | 57.0% of reviews — better |
| Number of ratings | 1 | 64 — better |
| Update frequency | Every 41 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | 武志 除村 | DiscoDSP LLC |
Customer experience
YMCK Player 2
OB
Bugs and requests
YMCK Player 2
Not enough reviews yet to summarise bugs or 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)
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- 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
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- 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
In-app purchases
YMCK Player 2
No in-app purchases
OB
No in-app purchases









