Rotary Mod vs BLEASS Flanger
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Rotary Mod
This app emulates a Leslie speaker, creating a pulsing vibrato effect for instruments and vocals. It offers precise control over rotor and horn speeds, cabinet size, and includes advanced features like frequency modulation and a unique Ribbon control for simultaneous parameter adjustments.
- Independent rotor and horn speed control
- Frequency modulation with secondary LFO
- Selectable cabinet size (Standard/Giant)
- Hicut control for tone shaping
- Tap Tempo for BPM sync
- Innovative Ribbon control
- Mix Lock for preset scrolling
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Rotary is a rotating cabinet effect that simulates a Leslie speaker. It produces a pulse-like vibrato effect depending on the speed of rotation. Rotary offers precise control to dial in the exact amount of movement you need. This classic, swirly effect has been used on countless hit records to drastically transform guitars, bass, synths and even vocals. Features: - Change the speed of the rotor and horn independently and adjust the mix of the two to produce pulsing effects and special vibratos. - Add frequency modulation to the rotor and horn speed using secondary LFO with selectable modulation source. - Choose cabinet size (Standard or Giant) to alter the sweetness of your tone. - Craft the exact sound you need with included Hicut control. - Use Tap Tempo to sync effect to the BPM of your song. - Incredibly easy to use with included presets. - Innovative Ribbon control allows for changing any combination of parameters simultaneously. - Use Mix Lock to scroll through presets while keeping the wet-dry mix constant. - Available as an Audio Units AUv3 plug-in and Standalone app.
BLEASS Flanger
This audio effect app provides a modern take on classic flanging, offering flexible modulation sources, an envelope generator, and beat synchronization. It allows for complex and evolving timbral movement within your sound, with intuitive controls and efficient CPU usage.
- Flexible LFOs
- Envelope generator
- Beat synchronization
- Variable modulation routing
- Multi-mode input filter
- Stereo width control
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BLEASS Flanger harnesses the sonic characteristics of classic flanger effects and brings them fully up-to-date with a pair of flexible LFOs, variable modulation routing, an envelope generator and beat synchronisation. Classic flangers are a delay-based effect, and modulate the delay time to create the distinctive, repetitive flanged sound. But with BLEASS Flanger, multiple modulation sources are combined to create detailed, complex and evolving timbral movement within your sound. The addition of an envelope generator, which is triggered by the incoming signal, adds an additional dimension to the flanger effect, making it sensitive to the dynamics and nuances of your performances. The second LFO can take the sonic possibilities further still, with the option for it to modulate the delay’s feedback strength or stereo width. The tonal character of the effect can be controlled easily thanks to the multi-mode input filter, whilst the ability to synchronise the LFOs to the beat of your music allows you to explore completely new rhythmic and evolving effects. BLEASS’ trademark interface design ensures this powerful collection of tools are both easy and fun to work with, so you can harness their sonic versatility without ever hindering your musical creativity. And with super-efficient CPU usage, and compatibility with all major hosts and DAWs on desktop, iPad or iPhone, BLEASS Flanger is the only flanger you will ever need. More information on https://www.bleass.com/flanger/
Screenshots
Verdict
The clearest difference is rating: BLEASS Flanger at 5.0 against Rotary Mod's 4.3. BLEASS Flanger also leads on review sentiment (100% vs 80%) and price ($6.99 vs $7.99). Rotary Mod's advantage is update cadence (every 3 months vs every 31 months). On ratings volume, ads, in-app purchases and monetization model 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
Rotary Mod costs $7.99 and BLEASS Flanger $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.
BLEASS Flanger holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 23 and 13 respectively. Written reviews point the same way: 80% of Rotary Mod's written reviews are positive against 100% of BLEASS Flanger's.
Rotary Mod ships an update every 3 months, BLEASS Flanger every 31 months. Both last shipped on October 24, 2026.
| Parameter | Rotary Mod | BLEASS Flanger |
|---|---|---|
| Price | $7.99 | $6.99 — better |
| Rating | 4.3 (23 ratings) | 5.0 (13 ratings) — better |
| Positive reviews | 80.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 23 — better | 13 |
| Update frequency | Every 3 months — better | Every 31 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 | 11.0 |
| Further details — not scored | ||
| Size | 24 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Eventide | BLEASS |
Customer experience
Rotary Mod
BLEASS Flanger
In-app purchases
Rotary Mod
No in-app purchases
BLEASS Flanger
No in-app purchases









