Opera Software ASA (Free)
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Opera Max is an app that helps you reduce your data spending as you browse. It operates as a VPN that also compresses pictures and videos, among other things, through its servers. All compressions come with a trade-off, but this piece of software minimises it as much as possible.
Ideal for watching content
This app will save up to 50% on your data plan if you use it regularly. It utilises the same compression technology from the Opera Mini browser, thus shrinking file sizes from the web.
One of the best ways to use this programme is video streaming. It has optimised the data you need to watch videos from Youtube and Netflix - there's little to no loss in quality. Max is similarly effective for image-heavy apps.
Straightforward overview
Opera Max offers some neat perks to help you further control your data spending. Smart Alerts will warn you about any apps using data in the background. Besides, the streamlined user interface, the app will provide you with an overview of data consumed by each app.
A useful utility
This app features excellent data compression rates, especially for video streaming. With its sleek user interface and overviews of usage within the app, it's a useful tool, especially if you are frequently running out of data, and don't know why. However, it doesn't compress all types of files on your phone.