# CrossOver Filter vs Shelfify

The clearest difference is price: Shelfify at Free against CrossOver Filter's $1.99. Shelfify also leads on update cadence (every 4 days vs every 4 months). CrossOver Filter's advantage is in-app purchases (none vs 6) and iOS requirement (8.2 vs 16.0). On ads and device support there is nothing between them.

Shelfify is free to download; CrossOver Filter costs $1.99 up front. Shelfify sells 6 in-app purchases, starting at $2.49 per month. CrossOver Filter asks for nothing beyond the download.

CrossOver Filter ships an update every 4 months, Shelfify every 4 days. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | CrossOver Filter | Shelfify |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[2.7 (3 ratings)](https://appshunter.io/ios/app/crossover-filter/id1008101973/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 days** |
| Monetization | Paid | — |
| Size | 28 MB | 96 MB |
| Requires iOS | **8.2** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Pasquale Puglisi](https://appshunter.io/developer/1008101972) | [Appfium UG](https://appshunter.io/developer/1866011079) |

## What reviewers say

### CrossOver Filter

[App page](https://appshunter.io/ios/app/crossover-filter/id1008101973)

Design and simulate car stereo or home audio crossover filters with professional precision. Calculate various filter types, Q factors, and component values. Includes signal generation and project sharing features.

**Highlights:** Crossover filter calculation (2-way, tweeter, mid-range, subwoofer), Selectable Q factor of Merit (Butterworth, Bessel, etc.), Zobel and Speaker Attenuation calculation, Notch circuit calculation, Component value calculation (resistors, coils, capacitors), Speaker cable attenuation and resistance calculation, Signal generator (frequency sweep, noise), Project PDF/image generation and sharing

**Features:** Vision Pro support

**In-app purchases:** none


### Shelfify

[App page](https://appshunter.io/ios/app/shelfify-vinyl-organizer/id6759003070)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Shelfify Pro | $2.49 | per month |
| Shelfify Pro | $23.99 | per year |
| A Coffee | $1.99 | one-time |
| A Second Hand Record | $5.99 | one-time |
| A 7" Single | $9.99 | one-time |
| Shelfify Pro (One-Time Purchase) | $69.99 | one-time |


## Frequently asked questions

### Is CrossOver Filter free?

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

### Is Shelfify free?

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

### Do CrossOver Filter or Shelfify have ads?

Neither CrossOver Filter nor Shelfify shows ads.

### Which is updated more often, CrossOver Filter or Shelfify?

CrossOver Filter ships an update every 4 months, and Shelfify every 4 days. Most recently, CrossOver Filter was updated on October 24, 2026 and Shelfify on October 7, 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.*