# Bitbop vs Opaline FM

The clearest difference is rating: Bitbop at 5.0 against Opaline FM's 4.7. Opaline FM's advantage is ratings volume (3 vs 1) and iOS requirement (16.0 vs 18.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Bitbop holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Bitbop ships an update weekly, Opaline FM every 6 days. The most recent releases landed on November 10, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Bitbop | Opaline FM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bitbop-chiptune-groovebox/id6782108792/reviews)** | [4.7 (3 ratings)](https://appshunter.io/ios/app/opaline-fm/id6790603368/reviews) |
| Number of ratings | 1 | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 6 days** |
| Monetization | Free | Free |
| Size | 3 MB | 3 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Franz Enzenhofer](https://appshunter.io/developer/1891843140) | [Hideki Konishi](https://appshunter.io/developer/6790603370) |

## What reviewers say

### Bitbop

[App page](https://appshunter.io/ios/app/bitbop-chiptune-groovebox/id6782108792)

Create music with a pocket instrument where every pad is in key. Explore over 1,000 songs across various genres, customize sounds with five unique synthesizer worlds, and visualize your music with full-screen graphics. Share your creations as video, audio, or links.

**Highlights:** Pocket instrument with in-key pads, 1,000+ song templates across genres, Five distinct synthesizer sound worlds, Full-screen music visualizations, Export audio, MIDI, and video, Real-time collaborative jamming, Offline functionality

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

**In-app purchases:** none


### Opaline FM

[App page](https://appshunter.io/ios/app/opaline-fm/id6790603368)

Create and perform music with a virtual keyboard and advanced sound editing tools. Explore various playing modes, connect external MIDI devices, and manage your sound library. Offers deep control over FM synthesis parameters.

**Highlights:** Virtual keyboard for immediate performance, Detailed sound editing (algorithm, operators, envelopes, LFO, effects), Poly/Mono and Full/Fingered portamento, Single, Dual, and Split playing modes, External MIDI keyboard support, 32-voice SysEx bank management, Built-in reverb, delay, chorus, and tone effects

**In-app purchases:** none


## Frequently asked questions

### Is Bitbop free?

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

### Is Opaline FM free?

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

### Which has better reviews, Bitbop or Opaline FM?

Bitbop is rated higher. Bitbop averages 5.0 out of 5 from 1 ratings, while Opaline FM averages 4.7 from 3 ratings.

### Do Bitbop or Opaline FM have ads?

Neither Bitbop nor Opaline FM shows ads.

### Which is updated more often, Bitbop or Opaline FM?

Bitbop ships an update weekly, and Opaline FM every 6 days. Most recently, Bitbop was updated on November 10, 2026 and Opaline FM 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.*