29 lines
1.2 KiB
Markdown
29 lines
1.2 KiB
Markdown
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parent: Features
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---
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# Ofline routing on Android phones
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BRouter is first and foremost an offline tool. It runs on any Android phone. The
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online version offered here is just for a trial and for convenience. While many
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smartphone routing software use online services to do the actual route
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calculations, the advantages of the offline approach are evident:
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- It is more reliable, data connection problems and server-side problems are no
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issue
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- It works in foreign countries where data connections are either not available
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or very expensive
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- It does not raise any data privacy issues
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- You can use a cheap dedicated, second phone for navigation, without having to
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put your business smartphone on an untrusted bike mount and run it's battery
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low
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The downside is that advanced route calculations are difficult to do on a
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smartphone with limited computing and memory resources, which may lead
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developers to implement simplifications into the routing algorithm that affect
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the quality of the routing results. BRouter always does it's best on the
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quality, but has a processing time that scales quadratic with distance, leading
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to a limit at about 150km in air-distance, which is enough for a bikers daytrip.
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