# Katalog vs Speaker Tools

The clearest difference is in-app purchases: Katalog at none against Speaker Tools's 2. Katalog also leads on update cadence (every 10 days vs monthly) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Speaker Tools sells 2 in-app purchases, starting at $4.99 per month. Katalog asks for nothing beyond the download.

Katalog ships an update every 10 days, Speaker Tools monthly. The most recent releases landed on September 9, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Katalog | Speaker Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/speaker-tools-audio-test/id6759132052/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Monthly |
| Monetization | — | Subscription |
| Size | 56 MB | 7 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [103 NPT DIGITAL TECHNOLOGY PLC.](https://appshunter.io/developer/1708852072) | [家宝 戴](https://appshunter.io/developer/1826395838) |

## What reviewers say

### Katalog

[App page](https://appshunter.io/ios/app/katalog/id6744877299)

**In-app purchases:** none


### Speaker Tools

[App page](https://appshunter.io/ios/app/speaker-tools-audio-test/id6759132052)

This audio utility generates tones and explores sound frequencies using your device's speakers. It offers low-frequency playback, a wide frequency generator, and stereo channel signals for listening and basic audio testing.

**Highlights:** Low-frequency tone playback, Frequency generator (20 Hz – 20 kHz), Stereo speaker channel playback, Reference sound level meter, On-device audio signal generation

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SpeakerTools Pro Monthly | $4.99 | per month |
| SpeakerTools Pro Monthly | $29.99 | per year |


## Frequently asked questions

### Is Katalog free?

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

### Is Speaker Tools free?

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

### Do Katalog or Speaker Tools have ads?

Neither Katalog nor Speaker Tools shows ads.

### Which is updated more often, Katalog or Speaker Tools?

Katalog ships an update every 10 days, and Speaker Tools monthly. Most recently, Katalog was updated on September 9, 2026 and Speaker Tools on June 1, 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.*