# Sinusoid vs Hilda Synthesizer

The clearest difference is price: Sinusoid at $4.99 against Hilda Synthesizer's $12.99. Sinusoid also leads on iOS requirement (9.0 vs 12). Hilda Synthesizer's advantage is update cadence (every 9 days vs every 3 months) and review sentiment (90% vs 69%). On rating, ads, in-app purchases and monetization model there is nothing between them.

Sinusoid costs $4.99 and Hilda Synthesizer $12.99 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 4.9 for Hilda Synthesizer. Both are backed by a comparable volume of ratings — 13 and 58 respectively. Written reviews are what separate them: 69% of Sinusoid's written reviews are positive against 90% of Hilda Synthesizer's.

Sinusoid ships an update every 3 months, Hilda Synthesizer every 9 days. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Sinusoid | Hilda Synthesizer |
| --- | --- | --- |
| Price | **$4.99** | $12.99 |
| Rating | **[4.9 (13 ratings)](https://appshunter.io/ios/app/sinusoid/id416624795/reviews)** | [4.9 (58 ratings)](https://appshunter.io/ios/app/hilda-synthesizer/id6447191659/reviews) |
| Number of ratings | 13 | **58** |
| Positive reviews | 68.8% of reviews | **90.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 9 days** |
| Monetization | Paid | Paid |
| Size | 7 MB | 6 MB |
| Requires iOS | **9.0** | 12 |
| 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


### Hilda Synthesizer

[App page](https://appshunter.io/ios/app/hilda-synthesizer/id6447191659)

This app offers a complex oscillator monosynth with a blend of west-coast and east-coast synthesis techniques. It features a wave folder, lowpass gate, 12-mode filter, and VCA circuit, all meticulously circuit-modelled for authentic analog or digital sound. It functions as a playable synth, MIDI sequencer, and audio effect.

**Highlights:** Complex Oscillator Monosynth, Wave folder and lowpass gate, 12-mode filter, Circuit-modelled analog sound, Built-in 16-step MIDI Sequencer, Audio effect for external audio, AUv3 compatibility

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Sinusoid free?

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

### Is Hilda Synthesizer free?

Hilda Synthesizer costs $12.99, with no in-app purchases.

### Which has better reviews, Sinusoid or Hilda Synthesizer?

Sinusoid is rated higher. Sinusoid averages 4.9 out of 5 from 13 ratings, while Hilda Synthesizer averages 4.9 from 58 ratings.

### Do Sinusoid or Hilda Synthesizer have ads?

Neither Sinusoid nor Hilda Synthesizer shows ads.

### Which is updated more often, Sinusoid or Hilda Synthesizer?

Sinusoid ships an update every 3 months, and Hilda Synthesizer every 9 days. Most recently, Sinusoid was updated on October 23, 2026 and Hilda Synthesizer 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.*