# Agonizer vs Replicant 3

The clearest difference is price: Replicant 3 at $4.99 against Agonizer's $19.99. Replicant 3 also leads on in-app purchases (none vs 3). Agonizer's advantage is update cadence (every 5 months vs every 18 months) and review sentiment (79% vs 67%). On ads and iOS requirement there is nothing between them.

Agonizer costs $19.99 and Replicant 3 $4.99 up front. Agonizer sells 3 one-off in-app purchases. Replicant 3 asks for nothing beyond the download.

Agonizer ships an update every 5 months, Replicant 3 every 18 months. The most recent releases landed on September 22, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Agonizer | Replicant 3 |
| --- | --- | --- |
| Price | $19.99 | **$4.99** |
| Rating | **[4.8 (203 ratings)](https://appshunter.io/ios/app/agonizer/id1499426175/reviews)** | — |
| Number of ratings | **203** | — |
| Positive reviews | **78.8% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 18 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 362 MB | 27 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kai Aras](https://appshunter.io/developer/370820899) | [Audio Damage, Inc.](https://appshunter.io/developer/1248448317) |

## What reviewers say

### Agonizer

[App page](https://appshunter.io/ios/app/agonizer/id1499426175)

This app is a monophonic synthesizer focused on bass sounds, developed with a synth bass expert. It features dual wavetable oscillators, a mangle section, and built-in stereo effects. It supports MPE controllers and various audio/MIDI connectivity options for standalone or app-to-app use.

**Highlights:** Monophonic synth engine for bass, Dual wavetable oscillators, Built-in stereo effects, MPE controller support, Standalone and AUv3 operation, 140+ factory presets

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chrome Oasis Pack | $3.99 | one-time |
| Circuit Bender Pack | $3.99 | one-time |
| Neon Nightmare Pack | $4.99 | one-time |

**What reviewers like**

- 🎵 Excellent sound quality and unique bass tones
- 🎨 Intuitive and well-designed user interface
- ⚙️ Powerful modulation and sound design capabilities
- 🎛️ Wobulator feature for creative bass manipulation
- 📦 Great presets included with the app

**What reviewers complain about**

- 🐛 Keyboard legato/mono-synth behavior inconsistent
- 🐛 Frequent crashes in host applications (AUM, Cubasis, Audiobus)
- 🐛 No sound output in GarageBand and some AU hosts
- 🐛 App freezes on splash screen with iOS 18.3
- 🐛 UI responsiveness issues and knob lag

**Reported bugs**

- Keyboard does not properly handle legato/mono-synth note priority
- Crashes in Audiobus, AUM, and Cubasis host applications
- No sound output when used as AUv3 plugin in hosts
- No sound in GarageBand integration
- App freezes on splash screen with iOS 18.3

**Requested features**

- Polyphony mode or toggle between mono and poly
- Envelope drawing capability instead of preset selection
- Menu-based waveform selection instead of cycling
- Arpeggiator function
- Preset browser search and favorites filter


### Replicant 3

[App page](https://appshunter.io/ios/app/replicant-3/id1670715321)

This real-time audio effect processor captures, loops, and mangles audio on the fly. It offers advanced sequencing with per-step probability and direction, alongside four distinct slice effects for creative sound design. Control dynamics with envelope crossfading and trigger slices manually or via MIDI.

**Highlights:** Real-time audio slicing and mangling, Advanced step sequencer (3-16 steps), Four distinct slice effects (Stutter, Delay, Redukt, Ring Mod), Envelope crossfading for dynamic control, Manual and MIDI triggering, Intuitive visual step sequencer interface, AUv3 compatible

**In-app purchases:** none


## Frequently asked questions

### Is Agonizer free?

Agonizer costs $19.99, and also offers in-app purchases.

### Is Replicant 3 free?

Replicant 3 costs $4.99, with no in-app purchases.

### Do Agonizer or Replicant 3 have ads?

Neither Agonizer nor Replicant 3 shows ads.

### Which is updated more often, Agonizer or Replicant 3?

Agonizer ships an update every 5 months, and Replicant 3 every 18 months. Most recently, Agonizer was updated on September 22, 2026 and Replicant 3 on September 9, 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.*