# CA AMP vs DS18 iDSP

The clearest difference is rating: CA AMP at 4.0 against DS18 iDSP's 1.0. CA AMP also leads on update cadence (every 2 months vs every 6 months) and ratings volume (6 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CA AMP holds the better App Store score, 4.0 against 1.0. That said, the two scores are not equally well evidenced: CA AMP has 6 ratings behind it against 1, so its average is the more settled of the two.

CA AMP ships an update every 2 months, DS18 iDSP every 6 months. The most recent releases landed on October 17, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | CA AMP | DS18 iDSP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (6 ratings)](https://appshunter.io/ios/app/ca-amp/id1554205982/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/ds18-idsp/id6755451912/reviews) |
| Number of ratings | **6** | 1 |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | Free | Free |
| Size | 20 MB | 59 MB |
| Requires iOS | **11.0** | 12.2 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [文栋 顾](https://appshunter.io/developer/1460789214) | [SPIRIT LLC](https://appshunter.io/developer/1327651109) |

## What reviewers say

### CA AMP

[App page](https://appshunter.io/ios/app/ca-amp/id1554205982)

This application provides comprehensive control and adjustments for amplifiers, including EQ, crossover settings, and digital time alignment. Manage all audio signal processing functions directly from your smartphone or tablet.

**Highlights:** Interactive audio signal processor, EQ adjustments, Controllable crossover (6/12/24/48 dB), Digital time alignment, Grouping functionality, Preset and custom settings memory

**Features:** macOS Compatibility

**In-app purchases:** none


### DS18 iDSP

[App page](https://appshunter.io/ios/app/ds18-idsp/id6755451912)

Control specific digital sound processor models with a user-friendly interface. Adjust audio settings like routing, gain, crossover, and equalization in real-time. Includes a demo mode for learning and battery/limiter monitoring.

**Highlights:** Channel Routing, Gain Control (General & Channel), Crossover Settings, Limiter & Equalizer Adjustments, Time Alignment, Configurable Memories, Battery & Limiter Monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CA AMP free?

CA AMP is free to download, with no in-app purchases.

### Is DS18 iDSP free?

DS18 iDSP is free to download, with no in-app purchases.

### Which has better reviews, CA AMP or DS18 iDSP?

CA AMP is rated higher. CA AMP averages 4.0 out of 5 from 6 ratings, while DS18 iDSP averages 1.0 from 1 ratings.

### Do CA AMP or DS18 iDSP have ads?

Neither CA AMP nor DS18 iDSP shows ads.

### Which is updated more often, CA AMP or DS18 iDSP?

CA AMP ships an update every 2 months, and DS18 iDSP every 6 months. Most recently, CA AMP was updated on October 17, 2026 and DS18 iDSP on October 20, 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.*