# RADAR Chain vs PlaneBase Mobile [PBM]

The clearest difference is iOS requirement: PlaneBase Mobile [PBM] at 11.0 against RADAR Chain's 17.6. On price, review sentiment, ads and in-app purchases there is nothing between them.

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

## The numbers

| Metric | RADAR Chain | PlaneBase Mobile [PBM] |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/radar-chain/id939424600/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | — |
| Monetization | Free | Free |
| Size | 21 MB | 78 MB |
| Requires iOS | 17.6 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Graham Randall](https://appshunter.io/developer/730422090) | [Nic Storey](https://appshunter.io/developer/1467047510) |

## What reviewers say

### RADAR Chain

[App page](https://appshunter.io/ios/app/radar-chain/id939424600)

Explore the history of RADAR development in the UK from 1936 onwards. Discover early RADAR sites with satellite views and historical details, including photographs. Learn about the pioneers and the Chain Home network, plus RAF airfields active during the Battle of Britain.

**Highlights:** UK RADAR development history (1936+), Early RADAR site locations, Satellite views of current locations, Historical details and photographs, Bawdsey research details, Battle of Britain RAF airfields

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

**In-app purchases:** none


### PlaneBase Mobile [PBM]

[App page](https://appshunter.io/ios/app/planebase-mobile-pbm/id1467047511)

This mobile companion app allows aviation enthusiasts to log aircraft sightings and access detailed information on aircraft, bases, fleets, and types. It syncs with the main PlaneBase program for easy data management and planning.

**Highlights:** Log by frames or registrations, Aircraft lookup with visual notifications, View base and fleet lists, Search aircraft by type or ICAO code, Email logs for import into main program

**In-app purchases:** none


## Frequently asked questions

### Is RADAR Chain free?

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

### Is PlaneBase Mobile [PBM] free?

PlaneBase Mobile [PBM] is free to download, with no in-app purchases.

### Do RADAR Chain or PlaneBase Mobile [PBM] have ads?

Neither RADAR Chain nor PlaneBase Mobile [PBM] 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.*