# PAcalculate vs Octet Network Toolkit

The clearest difference is in-app purchases: PAcalculate at none against Octet Network Toolkit's 2. PAcalculate also leads on iOS requirement (13.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Octet Network Toolkit sells 2 in-app purchases, starting at $1.99 per month. PAcalculate asks for nothing beyond the download.

PAcalculate ships an update every 4 months, Octet Network Toolkit every 3 months. The most recent releases landed on October 17, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | PAcalculate | Octet Network Toolkit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/pacalculate/id793460437/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 3 MB | 7 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Jose Brusi](https://appshunter.io/developer/793460440) | [mika koike](https://appshunter.io/developer/6782346446) |

## What reviewers say

### PAcalculate

[App page](https://appshunter.io/ios/app/pacalculate/id793460437)

This app provides 28 calculators and reference information for professional audio sound reinforcement and lighting. It covers acoustics, audio electronics, cabling, and lighting calculations, making it a valuable tool for audio and lighting professionals.

**Highlights:** 28 calculators for pro-audio and lighting, Acoustics calculations (SPL, air absorption), Audio electronics calculations (dBu/dBV, Q/B/W), Cabling calculations (speaker cable loss), Lighting calculations (DMX, RGB/CMY), Reference info (pinouts, graphs)

**Features:** macOS Compatibility

**In-app purchases:** none


### Octet Network Toolkit

[App page](https://appshunter.io/ios/app/octet-network-toolkit/id6782346294)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Octet Pro 月額 | $1.99 | per month |
| Octet Pro 買い切り | $6.99 | one-time |


## Frequently asked questions

### Is PAcalculate free?

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

### Is Octet Network Toolkit free?

Octet Network Toolkit is free to download, with in-app purchases available.

### Do PAcalculate or Octet Network Toolkit have ads?

Neither PAcalculate nor Octet Network Toolkit shows ads.

### Which is updated more often, PAcalculate or Octet Network Toolkit?

PAcalculate ships an update every 4 months, and Octet Network Toolkit every 3 months. Most recently, PAcalculate was updated on October 17, 2026 and Octet Network Toolkit on October 25, 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.*