# OB vs TakeSheet

The clearest difference is price: TakeSheet at Free against OB's $19.99. OB's advantage is in-app purchases (none vs 1) and iOS requirement (15.0 vs 17.6). On update cadence, ads and device support there is nothing between them.

TakeSheet is free to download; OB costs $19.99 up front. TakeSheet sells 1 one-off in-app purchase. OB asks for nothing beyond the download.

OB ships an update every 10 days, TakeSheet every 2 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | OB | TakeSheet |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | **[4.1 (15 ratings)](https://appshunter.io/ios/app/ob-xd-3-auv3-synth/id6654915211/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 2 weeks |
| Monetization | Paid | — |
| Size | 210 MB | 89 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [DiscoDSP LLC](https://appshunter.io/developer/1465262828) | [Yevgeny Levin](https://appshunter.io/developer/1800429376) |

## What reviewers say

### OB

[App page](https://appshunter.io/ios/app/ob-xd-3-auv3-synth/id6654915211)

This app recreates a classic vintage synthesizer, offering rich, full-bodied tones for electronic music, recordings, and film scores. It features MPE support, an on-screen MIDI keyboard, and high-quality rendering for enhanced music production.

**Highlights:** Oberheim OB-X emulation, MPE support, On-screen MIDI keyboard, High-quality retina rendering, AUv3 improvements, Preset search with categories

**Features:** macOS Compatibility

**In-app purchases:** none


### TakeSheet

[App page](https://appshunter.io/ios/app/takesheet/id6775195197)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TakeSheet Pro Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is OB free?

OB costs $19.99, with no in-app purchases.

### Is TakeSheet free?

TakeSheet is free to download, with in-app purchases available.

### Do OB or TakeSheet have ads?

Neither OB nor TakeSheet shows ads.

### Which is updated more often, OB or TakeSheet?

OB ships an update every 10 days, and TakeSheet every 2 weeks. Most recently, OB was updated on October 30, 2026 and TakeSheet on October 31, 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.*