For me personally, no.
However, what you really need is a larger data set.
Gumroad just did a post on prices ending in "9":
37signals started with prices that ended in 9:
... but they later did research and found it didn't matter (for them).
The answer for YOU will likely be to test these things for yourself on your SaaS app.
I tried to get my wife to do odd pricing for her Etsy store but she informed me that 'normal' pricing worked better. It makes sense given the community of Etsy-- they want to do business with people, not marketers.
All that to say... It depends on your customers.
It doesn't necessarily turn me off as a consumer, though I see through the visual pricing trick in those cases. $1999 is still 2 grand to me.
For pricing my products and services, it depends. I like keeping it simple for me, first and foremost, so my packages are more like $150/hr, $1500, $5000 in order to simplify the running of my business for me.
There are a few instances in another business I have where we price a webinar at $99 because that's pretty standard and easy.
What it comes down to, though, is whether or not you have something of value to offer. If you do, customers will be happy to give you $29 or $30 or $499 or $500. Because you're providing value to them. If you're not, pricing can't help you.
Good question. Somewhere in my limbic brain going back to my early days in traditional direct mail, I read about a pricing test over time, and prices ending in 8 won. While I can don't even have a clue where I read this, I have followed it most of my business life, and it has worked. I subsequently learned that the number 8 in Chinese numerology is considered "auspicious." Be that as it may, I think much more important than the pricing number, is what is the value perception of what you are trying to sell. In selling a can of corn, 99 cents may sell many more cans that $1.01 - but in other areas, value will drive sales pricing is important but whether the price ends in a 1,2,3,6,8,0,,,probably doesn't matter if the value is there.
The research has found that customers commonly associate prices ending in zeros as conveying a quality, premium message.
Prices ending in 9 are commonly associated with discounted, on sale, cheap.
Most customers know that $29 = $30.
When the time comes to increase a $29 price point, there is typically a drop in sales (albeit temporary, unless you've hit the customers price ceiling). You are less likely to experience that when increasing a $30 price point
Happy to chat further on this if you're interested