Product Never make a mobile user switch apps and come back
Makes sure your email lands in the inbox
doesmyemail.work asked mobile users to copy an address, switch to their mail app, paste, and send, and that hand-off is exactly where people abandoned the flow. The fix was a single mailto link that pre-fills everything, turning four steps into one tap. Every time you ask a user to leave your app, do something elsewhere, and return, you are betting they make it back, and on mobile many do not. Collapse cross-app hand-offs into one action wherever you can. The smoothest flow is the one that never leaves the screen.
Related advice
Valentin Bora Translate an invisible technical problem into plain English
doesmyemail.work could have reported "SPF: softfail, DKIM: none" like every other tool and helped no one. Instead it says "does your domain say yes, I sent this." Turning opaque jargon into a sentence a non-expert understands is not decoration, it is the product, because the user's real problem is that they cannot tell what is wrong. When your tool surfaces a technical diagnosis, spend the effort to say it in the user's language. The translation is often worth more than the diagnosis itself.
Valentin Bora For a free tool, the answer screen is the whole product
A free, no-signup tool has exactly one moment that matters: the screen where the user gets their result. Everything before it is setup and everything after it is upsell, but that one screen is where the user decides whether the tool was worth their time. For doesmyemail.work, the diagnosis screen is the product. Pour disproportionate care into that single moment (speed, clarity, zero friction) because a lead magnet that fumbles its activation screen never gets to the lead part.
Valentin Bora Repackage your content as push notifications that respect attention
A push notification is usually an interruption, which is why people mute them; Valentin inverts that. He takes short written insights drawn from the app's own social content and sends them as notifications that sit quietly on the lock screen, a sentence or two to be read whenever the user is ready, not a demand for attention right now. That reframes the notification from a nag into a small gift, and it doubles as a retention loop that pulls people back into a content app without burning the goodwill that aggressive notifications destroy. The principle: the value has to be in the notification itself, not in the tap it is trying to extract. If the user would be glad to have read it even without opening the app, you have a retention channel; if not, you have an unsubscribe waiting to happen.
Valentin Bora Reuse one top-of-funnel playbook across products
Valentin runs the same move twice: a free diagnostic tool fronts a business email product, and free short-form video fronts a consumer psychology app. Both start with something genuinely useful and free that earns attention, then attach the paid layer behind it. A distribution playbook that works is not single-use; once you have one that reliably earns attention, it transfers across very different products. Find your repeatable top-of-funnel motion, then apply it again instead of reinventing distribution for every launch.
Extracted from
doesmyemail.work: A Free Tool as the Top of the Funnel