# PKMap vs Rapid Modules

The clearest difference is update cadence: PKMap at fortnightly against Rapid Modules's every 3 months. Rapid Modules's advantage is iOS requirement (15.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

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

PKMap ships an update fortnightly, Rapid Modules every 3 months. The most recent releases landed on September 8, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | PKMap | Rapid Modules |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | Free | — |
| Size | 226 MB | 31 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Powerking Chiptuning](https://appshunter.io/developer/1513738417) | [Dimsport Srl](https://appshunter.io/developer/1457853574) |

## What reviewers say

### PKMap

[App page](https://appshunter.io/ios/app/pkmap/id1515877333)

This app allows users to modify and manage PowerKing engine control units via Bluetooth. It intuitively recognizes connected models and offers flexible adjustments to parameters like fuel pressure, turbo pressure, and accelerator pedal response.

**Highlights:** Bluetooth connectivity for PowerKing ECUs, Automatic ECU model recognition, Adjustable fuel pressure, Adjustable turbo pressure, Adjustable accelerator pedal reactivity, Intuitive parameter modification

**Features:** macOS Compatibility

**In-app purchases:** none


### Rapid Modules

[App page](https://appshunter.io/ios/app/rapid-modules/id1533219522)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PKMap free?

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

### Is Rapid Modules free?

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

### Do PKMap or Rapid Modules have ads?

Neither PKMap nor Rapid Modules shows ads.

### Which is updated more often, PKMap or Rapid Modules?

PKMap ships an update fortnightly, and Rapid Modules every 3 months. Most recently, PKMap was updated on September 8, 2026 and Rapid Modules on September 10, 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.*