# B.B. Link Configurator vs Function Fitter

B.B. Link Configurator and Function Fitter are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

B.B. Link Configurator ships an update every 5 weeks, Function Fitter monthly. The most recent releases landed on October 10, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | B.B. Link Configurator | Function Fitter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (8 ratings)](https://appshunter.io/ios/app/bb-link-configurator/id6476163710/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | Free | — |
| Size | 3 MB | 4 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Island Magic Co.](https://appshunter.io/developer/1529387252) | [29Apps LLC](https://appshunter.io/developer/1817021563) |

## What reviewers say

### B.B. Link Configurator

[App page](https://appshunter.io/ios/app/bb-link-configurator/id6476163710)

Configure a Bluetooth adapter to connect your amateur radio to an iOS device. This enables data exchange with apps like RadioMail and aprs.fi using the radio's TNC as a packet modem.

**Highlights:** Configure B.B. Link Bluetooth adapter, Pair with Kenwood TH-D74/TH-D75 radios, Connect radio (Bluetooth Classic) to iOS (BLE), Utilize radio's TNC as packet modem, Data exchange with amateur radio apps

**Features:** macOS Compatibility

**In-app purchases:** none


### Function Fitter

[App page](https://appshunter.io/ios/app/function-fitter/id6748284369)

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

**In-app purchases:** none


## Frequently asked questions

### Is B.B. Link Configurator free?

B.B. Link Configurator is free to download, with no in-app purchases.

### Is Function Fitter free?

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

### Do B.B. Link Configurator or Function Fitter have ads?

Neither B.B. Link Configurator nor Function Fitter shows ads.

### Which is updated more often, B.B. Link Configurator or Function Fitter?

B.B. Link Configurator ships an update every 5 weeks, and Function Fitter monthly. Most recently, B.B. Link Configurator was updated on October 10, 2026 and Function Fitter on October 11, 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.*