Depending on the details of your needs, it might not be as easy. For instance, very view sync services are truely cross platform; Linux especially is supported by few (though also used by few users...) Also, many details of the Dropbox client are superior: Prioritization of small uploads (such that that one larger file doesn't stall the synchronization of your work documents), how sync conflcits are handled (e.g. Spideroak just silently discards the version that has been changed earlier), avoidance of redundant uploads due to differential synchronization, local sync for devices in the same network, ... It is easy to start relying on such features, even if the storage needs aren't large. Hence an entry-level tier that unlocks more than three devices without awkward workarounds would be appreciated over "just change providers".
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