I think you could test your market and let it tell you if your price point is high, low, or just right.
You won’t know until you launch and listen to what the market tells you. I like Joe’s approach of determining break even based on your fixed costs. Be careful not to mistake this for having a business.
How to monetize Glide?
This post of mine is old now, but I think the ideas are still mostly relevant. You are doing nº3.