Is Celtx a viable option to Final Draft?
Celtx is an open source alternative to Final Daft that has gained favor among many struggling screenwriters, mainly because it used to be free. Sadly, Celtx has become a product of its own success. Opting for a monthly subscription plan, Celtx is still "low cost," that is until you figure the long term cost of "ownership."
The basic plan is $15 per month (as of 6/17/19), which should present a fairly low barrier for most struggling screenwriters. For basically the cost of a Starbucks coffee, you get a rich, full-features screenwriting platform. But how does that actually stack up against the industry dynamo, Final Draft?
These days, you can own Final Draft, at full price, for $249.00 (which is not cheap). However, there are myriad discounts out there- Writer's Store offers, Education, and even a crazy $99 upgrade (which I personally just used). Even Celtx will cost you $180 for a full year, and at the end, you will simply have to renew again. I used Final Draft 8 for years before upgrading, so my "monthly" cost was about $
Just like in many other tool-intensive fields, there are a fair amount of "brand snobbery" among screenwriters and producers. It's akin to Makita (tools), Fender/Gibson (guitars), and so many more.
Sometimes, not having Final Draft can hinder you. There are some agents/producers/directors that want the Final Draft (.fdx) file so that they can make changes more easily. However, this is more of a "high-class" problem- if you get to the point where they are demanding a .fdx file, you've already won the battle and can afford to take the full-cost plunge.
So, Celtx may be a worthy option if you can't afford Final Draft, and you are okay with making monthly payments forever. Anything beats writing a screenplay in Word! Keep in mind there are other tools available, such as Fade In, Movie Magic Screenwriter, WriterDuet, and newcomer Studio Binder (part of a larger package, and currently FREE)!