Looking at the site, I'm not sure how you get the text messages from the phone. This is interesting… The example in the video is a great use case, but I'm wondering how often that love story happens for an individual person. Would the text messages from a couple married for 10 years with a few kids be fun to read in a scroll? Maybe this is for new couples mostly. However, I do like the idea of being able to search through my text messages. What is the compatibility with non SMS messages? There are a lot of non SMS messaging platforms being used, some use SMS as a fallback. Very cool and interesting, the video was great, good luck!

I'm wondering about the legal implications of this. While IANAL, SMS are (at least in Germany) also covered by the right to privacy of correspondence. Uploading them to your servers would violate that as long as you don't have the explicit permission by the other recipient. (+ you seem to be reading/accessing the contents?!)

Definitely put a 1-2-3 type basic explanation of how a user would use the service on the front page, possibly below the fold. I can't see how the service works and don't want to register before having some basic understanding of what it does beyond a vague, one-sentence description.

Interesting product. Is your main focus the analytics and backup or your physical product?

I'am the co-founder of Txto. I'd love to have your feedbacks. Thanks guys!