Trying out a new relationship app, but I don't know if anything can save my relationship

I've been married for 8 years, and for the past 3 years we've struggled with intimacy. Everything feels tense and unnatural. We don't have the spark, the desire, or the comfort we used to. I don't know if we can get it back, but I really hope we can. I decided to try the Relatio app, and I've been using it for three weeks now. I feel like I'm starting to understand myself better. I'm less stressed and don't spend as much time stuck on painful thoughts about our relationship. It's still tough, and I can't say the spark has returned yet. Still, I'm beginning to believe I can get through this, and that things might improve from here.

If you've been through something similar, I'd love to hear your advice. What helped you get the spark back? Are there any steps or approaches you recommend?

I appreciate any comments or suggestions. Let me know if you'd like updates on how things go with the app.