# pocketOSC vs 531 metronome

The clearest difference is update cadence: 531 metronome at every 5 days against pocketOSC's every 12 months. pocketOSC's advantage is price ($0.99 vs $2.99) and iOS requirement (12.0 vs 18.4). On rating, ratings volume, ads and in-app purchases there is nothing between them.

pocketOSC costs $0.99 and 531 metronome $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for pocketOSC against 5.0 for 531 metronome. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

pocketOSC ships an update every 12 months, 531 metronome every 5 days. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | pocketOSC | 531 metronome |
| --- | --- | --- |
| Price | **$0.99** | $2.99 |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/pocketosc/id6450972460/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/531-metronome/id6759196151/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 5 days** |
| Monetization | Paid | Paid |
| Size | 30 MB | 11 MB |
| Requires iOS | **12.0** | 18.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [OSC Audio](https://appshunter.io/developer/1693533681) | [AKIHIKO YOSHIDA](https://appshunter.io/developer/1877362692) |

## What reviewers say

### pocketOSC

[App page](https://appshunter.io/ios/app/pocketosc/id6450972460)

This versatile audio tool generates various waveforms like Sine, Square, Saw, and Noise. It includes an oscilloscope and controls for wave, frequency, and volume, functioning as a plug-in or standalone application.

**Highlights:** Stereo capable oscillator, Oscilloscope display, Waveform generation (Sine, Square, Saw, Noise), Frequency and Volume control, VST3, AU, AUv3 support, Standalone operation, Resizable and automatable GUI

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

**In-app purchases:** none


### 531 metronome

[App page](https://appshunter.io/ios/app/531-metronome/id6759196151)

This app provides a metronome designed for complex rhythms and time signatures. It offers features like tap tempo, background playback, and swing for subdivisions, helping musicians focus on rhythm and practice.

**Highlights:** Tap tempo, Background play & lock-screen control, Swing for subdivisions, Complex time signatures, Sub accents & rests, Infinite groove creation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is pocketOSC free?

pocketOSC costs $0.99, with no in-app purchases.

### Is 531 metronome free?

531 metronome costs $2.99, with no in-app purchases.

### Which has better reviews, pocketOSC or 531 metronome?

pocketOSC and 531 metronome are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do pocketOSC or 531 metronome have ads?

Neither pocketOSC nor 531 metronome shows ads.

### Which is updated more often, pocketOSC or 531 metronome?

pocketOSC ships an update every 12 months, and 531 metronome every 5 days. Most recently, pocketOSC was updated on October 14, 2026 and 531 metronome on October 7, 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.*