# Multimode Ladder Filter vs Unison

The clearest difference is price: Unison at Free against Multimode Ladder Filter's $1.99. Multimode Ladder Filter's advantage is in-app purchases (none vs 11). On update cadence, ads, device support and iOS requirement there is nothing between them.

Unison is free to download; Multimode Ladder Filter costs $1.99 up front. Unison sells 11 in-app purchases, starting at $19.99 per year. Multimode Ladder Filter asks for nothing beyond the download.

Multimode Ladder Filter ships an update every 4 days, Unison every 5 days. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Multimode Ladder Filter | Unison |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/multimode-ladder-filter/id6769653852/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 5 days |
| Monetization | Paid | — |
| Size | 7 MB | 643 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Callback Audio, LLC](https://appshunter.io/developer/1896220942) | [Quite Awesome Limited](https://appshunter.io/developer/6806719125) |

## What reviewers say

### 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


### Unison

[App page](https://appshunter.io/ios/app/unison-multitrack-recorder/id6813488896)

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Team Annual | $19.99 | per year |
| 500 AI Credits | $5.00 | one-time |
| 10,080 AI Credits | $80.00 | one-time |
| 10,795 AI Credits | $85.00 | one-time |
| 11,520 AI Credits | $90.00 | one-time |
| 12,255 AI Credits | $95.00 | one-time |
| 13,000 AI Credits | $100.00 | one-time |
| 20,250 AI Credits | $150.00 | one-time |
| 28,000 AI Credits | $200.00 | one-time |
| 42,900 AI Credits | $300.00 | one-time |
| 75,000 AI Credits | $500.00 | one-time |


## Frequently asked questions

### Is Multimode Ladder Filter free?

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

### Is Unison free?

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

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

Neither Multimode Ladder Filter nor Unison shows ads.

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

Multimode Ladder Filter ships an update every 4 days, and Unison every 5 days. Most recently, Multimode Ladder Filter was updated on October 24, 2026 and Unison on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*