One of my small clients wants to rank his website (iOS + Android app in the lifestyle and travel industries). I'm interested in basic SEO stuff, but I'm not a professional (not yet) so I can't do it myself. He may want to hire a pro. He wants to know what a SEO (backlinks, etc.) budget could look like. He needs something safe, something efficient and something that won't require hours of maintenance every week. Now, I totally understand that every project is different and that there are many variables influencing the amount of work necessary to achieve this. But he needs a general idea of the budget to see if he can even consider it. Is it $50, $500, $5000? Per year? What can be done with a modest and honest budget? I trust people on this forum, and I'm sure you guys can give me honest advice. Don't send me private messages with offers, I won't reply. I want the conversation to be public.