Buy an Android tablet for under $200 - maybe a Nexus 7. Download the "Avare" app - it's free. Avare is just like Foreflight or the other iThing apps. You can choose to download VFR and IRF charts, instrument approach procedures, airport information, weather, do flight planning, etc. etc. - and it is ALL free. No monthly subscription, no download fees, nothing! It's great - I've been using it for several years now, and they are continually adding features to improve it. It does everything I need in the cockpit, and it's never cost me a dime.