# OR vs AD

The clearest difference is price: OR at Free against AD's $6.99. OR also leads on rating (5.0 vs 4.7) and review sentiment (100% vs 86%). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

OR is free to download; AD costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

OR holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 8 and 14 respectively. Written reviews point the same way: 100% of OR's written reviews are positive against 86% of AD's.

OR ships an update every 6 weeks, AD every 3 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | OR | AD |
| --- | --- | --- |
| Price | **Free** | $6.99 |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/or-1-midi-sequencer/id6789592969/reviews)** | [4.7 (14 ratings)](https://appshunter.io/ios/app/ad-202/id6795327427/reviews) |
| Number of ratings | 8 | **14** |
| Positive reviews | **100.0% of reviews** | 85.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | **Free** | Paid |
| Size | 10 MB | 74 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Jori Eero Larres](https://appshunter.io/developer/6789592971) | [Audio Damage, Inc.](https://appshunter.io/developer/1248448317) |

## What reviewers say

### OR

[App page](https://appshunter.io/ios/app/or-1-midi-sequencer/id6789592969)

This application acts as a generative MIDI Note-FX, controlling external synths, samplers, and drum machines. It offers advanced features like Euclidean and polyrhythmic sequencing, stochastic drift, and scale quantization with chord lock. Designed for musicians to create complex MIDI patterns without generating sound itself.

**Highlights:** Euclidean sequencing, Polyrhythm generation, Stochastic drift, Modulators, Scale quantizer with chord lock, Tempo and random performance controls, MIDI Learn

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

**In-app purchases:** none


### AD

[App page](https://appshunter.io/ios/app/ad-202/id6795327427)

This app emulates a classic 1983 micro synthesizer with modern enhancements like MPE and eight-voice polyphony. It offers a rich sound engine with multiple oscillators, filters, and a comprehensive drive section for unique sonic textures. Enjoy extensive modulation options and a built-in keyboard for immediate creativity.

**Highlights:** Eight-voice polyphony, MPE support, Classic four-pole lowpass filter, Comprehensive drive section, AUv3 and standalone operation, Preset manager with favorites, Built-in chicklet keyboard

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OR free?

OR is free to download, with no in-app purchases.

### Is AD free?

AD costs $6.99, with no in-app purchases.

### Which has better reviews, OR or AD?

OR is rated higher. OR averages 5.0 out of 5 from 8 ratings, while AD averages 4.7 from 14 ratings.

### Do OR or AD have ads?

Neither OR nor AD shows ads.

### Which is updated more often, OR or AD?

OR ships an update every 6 weeks, and AD every 3 weeks. Most recently, OR was updated on October 24, 2026 and AD on October 25, 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.*