# The Remnant vs Undersong

The clearest difference is rating: Undersong at 5.0 against The Remnant's 4.0. Undersong also leads on update cadence (daily vs weekly). The Remnant's advantage is price ($5.99 vs $9.99). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

The Remnant costs $5.99 and Undersong $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Undersong holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 4 and 11 respectively.

The Remnant ships an update weekly, Undersong daily. Both last shipped on October 25, 2026.

## The numbers

| Metric | The Remnant | Undersong |
| --- | --- | --- |
| Price | **$5.99** | $9.99 |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/the-remnant-drone-synth/id6799469394/reviews) | **[5.0 (11 ratings)](https://appshunter.io/ios/app/undersong/id6802013758/reviews)** |
| Number of ratings | 4 | **11** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Daily** |
| Monetization | Paid | Paid |
| Size | 11 MB | 19 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Stephan Bolch](https://appshunter.io/developer/1516634570) | [ian johnston](https://appshunter.io/developer/1886071653) |

## What reviewers say

### The Remnant

[App page](https://appshunter.io/ios/app/the-remnant-drone-synth/id6799469394)

This app is a feedback-matrix drone synthesizer with 8 FM voices that modulate each other through a routing grid. It offers extensive control over sound parameters, autonomous matrix mutation, and a touch instrument mode for live performance.

**Highlights:** 8 FM voices with continuous waveform morphing, 8x8 feedback matrix for voice modulation, Drift for per-voice random pitch wandering, Evolve for autonomous matrix mutation, Snapshots for saving sound states, XY pad for parameter modulation, Play mode with velocity-sensitive pads

**In-app purchases:** none


### Undersong

[App page](https://appshunter.io/ios/app/undersong/id6802013758)

This audio effect acts like an instrument, generating synthesized notes in key based on incoming audio. Explore a vast array of sound combinations with various materials, modes, and patterns for unique ambient performances.

**Highlights:** Generates in-key synthesized notes from audio input, 12 material types and 10 performance modes, 10 pattern options for sound shaping, Self-generating ambient pad mode, Gravity feature for melodic anchoring, Customizable scales and root notes, Integrated reverb effect

**In-app purchases:** none


## Frequently asked questions

### Is The Remnant free?

The Remnant costs $5.99, with no in-app purchases.

### Is Undersong free?

Undersong costs $9.99, with no in-app purchases.

### Which has better reviews, The Remnant or Undersong?

Undersong is rated higher. The Remnant averages 4.0 out of 5 from 4 ratings, while Undersong averages 5.0 from 11 ratings.

### Do The Remnant or Undersong have ads?

Neither The Remnant nor Undersong shows ads.

### Which is updated more often, The Remnant or Undersong?

The Remnant ships an update weekly, and Undersong daily. Most recently, The Remnant was updated on October 25, 2026 and Undersong 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.*