# CVOsc vs Multimode Ladder Filter

The clearest difference is price: CVOsc at Free against Multimode Ladder Filter's $1.99. Multimode Ladder Filter's advantage is in-app purchases (none vs 4) and update cadence (every 4 days vs every 6 weeks). On ads and device support there is nothing between them.

CVOsc is free to download; Multimode Ladder Filter costs $1.99 up front. CVOsc sells 4 in-app purchases, starting at $0.99 per year. Multimode Ladder Filter asks for nothing beyond the download.

CVOsc ships an update every 6 weeks, Multimode Ladder Filter every 4 days. The most recent releases landed on October 6, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | CVOsc | Multimode Ladder Filter |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/multimode-ladder-filter/id6769653852/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 4 days** |
| Monetization | — | Paid |
| Size | 6 MB | 7 MB |
| Requires iOS | 26.4 | **17.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Aleph Void LLC](https://appshunter.io/developer/1896525800) | [Callback Audio, LLC](https://appshunter.io/developer/1896220942) |

## What reviewers say

### CVOsc

[App page](https://appshunter.io/ios/app/cvosc/id6767967087)

**Features:** Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CVOsc Annual Tuner | $0.99 | per year |
| CVOsc Annual Recording | $0.99 | per year |
| CVOsc Preset Annual | $0.99 | per year |
| CVOsc Annual Convert To Gate | $0.99 | per year |


### Multimode Ladder Filter

[App page](https://appshunter.io/ios/app/multimode-ladder-filter/id6769653852)

This app emulates a classic 1965 ladder filter, offering five distinct modes for versatile sound shaping. It provides warm analog-style distortion and the ability to drive the filter into self-oscillation for unique sonic textures. A dry/wet control allows for parallel filtering.

**Highlights:** 4-pole ladder filter emulation, Five filter modes (LP, HP, BP, Notch, Resonant), Analog-style distortion with drive, Self-oscillation at high resonance, Dry/wet parallel filtering control

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CVOsc free?

CVOsc is free to download, with in-app purchases available.

### Is Multimode Ladder Filter free?

Multimode Ladder Filter costs $1.99, with no in-app purchases.

### Do CVOsc or Multimode Ladder Filter have ads?

Neither CVOsc nor Multimode Ladder Filter shows ads.

### Which is updated more often, CVOsc or Multimode Ladder Filter?

CVOsc ships an update every 6 weeks, and Multimode Ladder Filter every 4 days. Most recently, CVOsc was updated on October 6, 2026 and Multimode Ladder Filter on October 13, 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.*