# CP 7890 vs OCTAV

The clearest difference is in-app purchases: CP 7890 at none against OCTAV's 2. CP 7890 also leads on iOS requirement (7.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. OCTAV sells 2 in-app purchases, starting at $8.79 per month. CP 7890 asks for nothing beyond the download.

## The numbers

| Metric | CP 7890 | OCTAV |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/octav-spl-meter-rta-tuner/id6803230381/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 4 weeks |
| Monetization | — | Freemium |
| Size | 2 MB | 12 MB |
| Requires iOS | **7.0** | 18.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Shure](https://appshunter.io/developer/849092213) | [Skeptical LLC (Company/Organization)](https://appshunter.io/developer/6803230383) |

## What reviewers say

### CP 7890

[App page](https://appshunter.io/ios/app/cp-7890/id950059357)

**Features:** macOS Compatibility

**In-app purchases:** none


### OCTAV

[App page](https://appshunter.io/ios/app/octav-spl-meter-rta-tuner/id6803230381)

This app provides a suite of audio analysis tools for sound engineers, including a calibrated SPL meter, RTA, and tuners. It offers features for live sound work, instrument tuning, and system checks, with advanced functions available via subscription.

**Highlights:** Calibrated SPL meter with A/C/Z weighting, 31-band RTA with feedback finder, Chromatic and drum tuner, Tone and noise generator, NIOSH noise-dose clock, Chladni plate cymatics simulation

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OCTAV Pro Monthly | $8.79 | per month |
| OCTAV Pro Annual | $39.99 | per year |


## Frequently asked questions

### Is CP 7890 free?

CP 7890 is free to download, with no in-app purchases.

### Is OCTAV free?

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

### Do CP 7890 or OCTAV have ads?

Neither CP 7890 nor OCTAV shows ads.

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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.*