2 Job Offers to Decide

Few thoughts:
1) You could very likely get a few thousand more in the (new) job and either fully or almost close the gap in compensation. Even if the new company does not increase your offer, it's too small a difference to matter. Do what's best for your medium term career.

2) Forget about titles. “analyst” and “senior analyst” means nothing unless you are trying to leave the company, and even then isn't your compensation and responsibility all that matters? If a company offered me a “financial analyst” job, but it was a 20% raise, would I take another job as a “senior financial analyst” even if it was only a 5% raise? Of course not. Seniority is not determined by titles, it's evaluated based on responsibilities.

3) You mentioned two things (learning opps and stability) as reasons for the new job. Personally, I think growth could be very limited at a company with <$100 million in recurring revenues (unless it's a high growth company or startup which is looking to grow very quickly).

4) Given most other items are similar, take the job which you think will help your career in a 2-3 year time frame (not because you should intend to leave that soon, but because this is a time frame that is relatively possible to imagine your career progression). I don't know which company will do that, because I don't know the details of either company, but you should try to judge this and then make an educated decision. Presumably you are looking outside because you are dissatisfied with something at your current company, though you'll have to determine if that's the case.