# DubFilter vs Sequencer Rack 2

The clearest difference is price: DubFilter at Free against Sequencer Rack 2's $3.99. DubFilter also leads on rating (4.7 vs 3.0) and update cadence (every 6 months vs every 91 months). Sequencer Rack 2's advantage is iOS requirement (15.6 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

DubFilter is free to download; Sequencer Rack 2 costs $3.99 up front. DubFilter sells 1 one-off in-app purchase and Sequencer Rack 2 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

DubFilter holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: DubFilter has 71 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 73% of DubFilter's written reviews are positive against 50% of Sequencer Rack 2's.

DubFilter ships an update every 6 months, Sequencer Rack 2 every 91 months. The most recent releases landed on September 22, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | DubFilter | Sequencer Rack 2 |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.7 (71 ratings)](https://appshunter.io/ios/app/dubfilter/id979648058/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/sequencer-rack-2-groovebox/id1455851982/reviews) |
| Number of ratings | **71** | 2 |
| Positive reviews | **73.3% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 91 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 12 MB | 14 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Amazing Noises](https://appshunter.io/developer/903336421) | [Aleksandar Mlazev](https://appshunter.io/developer/1093798140) |

## What reviewers say

### DubFilter

[App page](https://appshunter.io/ios/app/dubfilter/id979648058)

This app provides a powerful dual filter with resonance and an exclusive overlap parameter. It also features a redesigned stereo sample player with LFO and scrubbing, along with extensive MIDI and file management capabilities.

**Highlights:** Dual low-pass/high-pass filter, Resonance and Overlap parameter, Stereo sample player with LFO, Scrubbing capabilities, Audiobus and Inter-App Audio support, MIDI control and file management, Preset morphing pad

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Audio Unit Plugin Support | $1.99 | one-time |


### Sequencer Rack 2

[App page](https://appshunter.io/ios/app/sequencer-rack-2-groovebox/id1455851982)

Create music and beats with a vintage-inspired step sequencer. Features 16 distinct sounds, chord progressions, and effects. Export your creations as WAV files.

**Highlights:** 16 distinct vintage sounds, Chord progressions in C major, Melody pads, Two audio effects, Export to WAV, Sound pitch and volume control, Loop playback

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sequencer Rack 2 unlock export | $1.99 | one-time |


## Frequently asked questions

### Is DubFilter free?

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

### Is Sequencer Rack 2 free?

Sequencer Rack 2 costs $3.99, and also offers in-app purchases.

### Which has better reviews, DubFilter or Sequencer Rack 2?

DubFilter is rated higher. DubFilter averages 4.7 out of 5 from 71 ratings, while Sequencer Rack 2 averages 3.0 from 2 ratings.

### Do DubFilter or Sequencer Rack 2 have ads?

Neither DubFilter nor Sequencer Rack 2 shows ads.

### Which is updated more often, DubFilter or Sequencer Rack 2?

DubFilter ships an update every 6 months, and Sequencer Rack 2 every 91 months. Most recently, DubFilter was updated on September 22, 2026 and Sequencer Rack 2 on September 18, 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.*