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Yes, i.System is completely free and it doesn't have any in-app purchases or subscriptions.
Not enough reviews to make a reliable assessment. The app needs more user feedback.
i.System is free.
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5 out of 5
1 ratings in Vietnam
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After installing the app, it crashed. Deleted it.
Crashes my iPhone X
App opens with an ad to install something, then after closing that and hitting the process monitor, it crashes. Worthless.
App keeps crashing (of course the ads still work). Not recommended.
The ads are WAY too invasive. First launch had 4+ full screen ads in a row. Each claimed to have a close or no thanks, but redirected to a web site or the App Store anyway.
what does the u.s. iTunes app store have against system optimizer apps, system memory refreshing apps, & battery boosting apps? seriously! every time i find one that does it all, inevitably the app store phases it out. these types of utilities are readily available in every other store, but not in the u.s. store. it's as though apple doesn't want it's customers to be able to enjoy the benefits of this type of utility, and they don't have the right to decide that for their customers. (and yet they have done just that) hasn't anyone out there noticed this? i cannot be the only person.
But less accurate. Wrong about what apps I had up. Who knows how accurate it is about the rest of it? And the adware keeps dragging me off to a webpage, much more annoying than the ads you just have to look at then click away.