# Sinusoid vs Ruismaker FM

Sinusoid and Ruismaker FM both sit at 4.9 stars, but that hides the real split: 83% of Ruismaker FM's written reviews are positive against 69% of Sinusoid's. Ruismaker FM also leads on update cadence (every 5 weeks vs every 3 months) and ratings volume (54 vs 13). Sinusoid's advantage is iOS requirement (9.0 vs 11.0). On price, rating, ads and in-app purchases there is nothing between them.

Sinusoid costs $4.99 and Ruismaker FM $4.99 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 — 4.9 for Sinusoid against 5.0 for Ruismaker FM. Both are backed by a comparable volume of ratings — 13 and 54 respectively. Written reviews are what separate them: 69% of Sinusoid's written reviews are positive against 83% of Ruismaker FM's.

Sinusoid ships an update every 3 months, Ruismaker FM every 5 weeks. The most recent releases landed on October 4, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Sinusoid | Ruismaker FM |
| --- | --- | --- |
| Price | $4.99 | $4.99 |
| Rating | [4.9 (13 ratings)](https://appshunter.io/ios/app/sinusoid/id416624795/reviews) | **[5.0 (54 ratings)](https://appshunter.io/ios/app/ruismaker-fm/id1143644577/reviews)** |
| Number of ratings | 13 | **54** |
| Positive reviews | 68.8% of reviews | **83.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Monetization | Paid | Paid |
| Size | 7 MB | 8 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Erik Sigth](https://appshunter.io/developer/385275335) | [Bram Bos](https://appshunter.io/developer/325340444) |

## What reviewers say

### Sinusoid

[App page](https://appshunter.io/ios/app/sinusoid/id416624795)

Create music with a retro 8-bit inspired sound machine. Features 4 channels for tones and drums, with extensive sound sculpting options like filters, modulation, and effects. Export your creations and integrate with other music apps.

**Highlights:** 4 sound channels (3 tones, 1 drum/noise), Extensive audio parameters (envelope, vibrato, glide, filter), Ring modulation and FM synthesis, Arpeggiator, delay, and bit crusher effects, MIDI input and output support, Audiobus, IAA, and AUv3 integration, AIFF export and in-app music player

**Features:** Vision Pro support

**In-app purchases:** none


### Ruismaker FM

[App page](https://appshunter.io/ios/app/ruismaker-fm/id1143644577)

Design unique percussion sounds from scratch with a flexible synthesis engine. Create everything from traditional drums to unconventional effects. Offers a standalone Euclidean sequencer for pattern creation and export options.

**Highlights:** FM synthesis engine for percussion, Create custom drum sounds, Euclidean sequencer, AUv3 compatible, No samples used, MIDI CC controllable

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Sinusoid free?

Sinusoid costs $4.99, with no in-app purchases.

### Is Ruismaker FM free?

Ruismaker FM costs $4.99, with no in-app purchases.

### Which has better reviews, Sinusoid or Ruismaker FM?

Ruismaker FM is rated higher. Sinusoid averages 4.9 out of 5 from 13 ratings, while Ruismaker FM averages 5.0 from 54 ratings.

### Do Sinusoid or Ruismaker FM have ads?

Neither Sinusoid nor Ruismaker FM shows ads.

### Which is updated more often, Sinusoid or Ruismaker FM?

Sinusoid ships an update every 3 months, and Ruismaker FM every 5 weeks. Most recently, Sinusoid was updated on October 4, 2026 and Ruismaker FM on October 18, 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.*