RM vs Lines
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RM
This audio effect app offers versatile modulation capabilities, including ring, amplitude, phase, and frequency modulation. It features a built-in carrier oscillator, multimode filter, envelope follower, and LFO for creating unique sounds. It can be used standalone or with other audio apps.
- Multiple modulation types (Ring, AM, FM, Phase)
- Built-in carrier oscillator
- Multimode filter (LP, HP, BP)
- Envelope follower and LFO
- Standalone and IAA/Audiobus support
- AUv3 plugin compatibility
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RM-1 Wave Modulator RM-1 is a multi purpose audio effect designed around various types of modulation. Featuring a built-in carrier oscillator, multimode filter, envelope follower and low frequency oscillator, RM-1 creates new sounds by combining carrier waveform and the audio input in different ways. Types of modulation: - Ring Modulation (virtual analog) - Ring Modulation (digital) - Amplitude Modulation - Phase Modulation (DX-style FM) - Frequency Modulation (linear) Overview: - Built-in carrier oscillator with variable wave-shape (sine->square) - Built-in multimode Filter (LP, HP, BP) - Built-in Envelope Follower and LFO Connectivity: - Standalone (MIC, USB audio) - IAA / Audiobus - AUv3 Plugin
Lines
This audio effect plugin transforms any signal into a wide spectrum of sounds, from lo-fi to distortion and feedback. It can also function as an experimental synthesizer, creating rhythms and soundscapes even without input.
- Creative signal mangling
- Experimental synthesizer
- Feedback-based sound design
- Wide range of audio effects
- Rhythm and soundscape generation
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Lines is an effect plugin that crosses borders: it can be used as a creative mangler of all kinds of signals, ranging from lo-fi telephone sounds, lush phasing, warm distortions, crushing feedback, ring modulation and unique frequency shifting. But even without any input, it can be an experimental synthesizer based on feedback, allowing for a wide range of inspiring rhythms, pulses, and organic soundscapes. If you combine input and internal engines an unheard spectrum of sounds appears.
Screenshots
Verdict
The clearest difference is price: RM at $9.99 against Lines's $19.99. RM also leads on iOS requirement (9.0 vs 12.0). Lines's advantage is review sentiment (100% vs 67%) and rating (5.0 vs 4.6). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
RM costs $9.99 and Lines $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Lines holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 18 and 11 respectively. Written reviews point the same way: 67% of RM's written reviews are positive against 100% of Lines's.
RM ships an update every 10 months, Lines every 13 months. The most recent releases landed on October 6, 2026 and October 15, 2026 respectively.
| Parameter | RM | Lines |
|---|---|---|
| Price | $9.99 — better | $19.99 |
| Rating | 4.6 (18 ratings) | 5.0 (11 ratings) — better |
| Positive reviews | 66.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 18 — better | 11 |
| Update frequency | Every 10 months — better | Every 13 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | — | #115 — better |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 9.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 35 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Kai Aras | AudioThing Ltd. |
Customer experience
RM
Lines
In-app purchases
RM
No in-app purchases
Lines
No in-app purchases
