I use a CoinStats now after accidentally deleting a coin from Delta, which completely destroyed my portfolio performance. I actually like CoinStats better since it has API connections with the exchanges, no more manual work. The only downside is it will NOT pull in your buy prices for your trades, BUT you can edit these by tapping on your holding and changing the last buy price. Not all that difficult to get completed in a short amount of time.

Another cool thing about CoinStats is the PUMP alert, which will send you a notification if a coin is currently being pumped... This could go any way really, trigger your FOMO, or alert you to sell, LOL.

As for charting, the only system I like to use is TradingView, works on both mobile and desktop (browser). Set up a free account and you can have your charts synched across all devices, paid service opens up the ability to create alerts, etc... TradingView has most of the major exchange's realtime charts.