What couples do now, and where it falls apart
Open-when letters are an old paper habit: a bundle of envelopes, each marked with a moment such as "open when you miss me" or "open when you can't sleep", handed over before a trip, a move, or a long stretch apart. Love coupons are the lighter cousin, a little booklet of promises torn out one at a time. Both work because they are physical. You can feel that the envelope is still closed.
The paper version has limits. The bundle has to be handed over or mailed, and if you live in different cities there is no easy way to add one more letter next Tuesday. A text message arrives instantly and is buried in the chat by evening. Nothing stops anyone from opening the whole stack on the first night, and coupon booklets tend to end up in a drawer, half used and forgotten.
How a letter gets from you to your partner
The first screen is a demo letter sealed by the app, so you can try breaking a seal before you sign in to anything. To send real letters you connect with your partner: you each sign in with Apple or Google, one of you shares an invite link or a six-digit code, and the other accepts. Codes expire after 72 hours and can be sent again. You are connected to one person at a time.
When you seal a letter, its text is encrypted on your phone before it is sent. The server stores that encrypted text along with the envelope details it needs: who sent it, the label, the open date if there is one, the wax design, and whether it has been opened. The encrypted text is not delivered to your partner's phone until they open the letter, so the letterbox cannot show a preview and nobody can read ahead.
Your partner gets a notification when a letter arrives, and you get one when it is opened.
The rule about opening early
There are two kinds of condition. If a letter has an open date, the server checks it, and opening before that date counts as early. If a letter only has a label, like "when you've had a hard day", only the reader knows whether the moment has come. Before the seal breaks, WaxSeal asks one question: is this the moment? Saying yes opens it normally. Opening it anyway counts as early.
An early opening tears the seal instead of cracking it. The ragged edge stays on that letter permanently and shows in the sender's letterbox too. It cannot be undone; the only way to remove it is to delete the letter. The sender gets a note that the seal went early, written as a light tease rather than an accusation.
WaxSeal does not count early openings, keep a score, or rank anything. The torn edge is simply a fact about that one letter.
Love coupons, torn along the line
Coupons start from presets, such as one long hug, dishes tonight, or a movie date where they pick, or from a line you write yourself. Custom wording is encrypted the same way letter text is. Coupons have no expiry date.
Coupons you receive sit in a grid in the app and on a small or medium home-screen widget, which also shows how many sealed letters are waiting for you. Redeeming in the app means dragging along the perforated line until the stub comes away. On the widget it is one tap. Either way the sender gets a notification that it's time to keep the promise, and the torn half stays in your archive.
Who can see what
Letters and coupons are visible to the two people in the pair and nobody else. There is no public feed, no profile page, and no way to browse other couples. Usage analytics are anonymous and do not store device identifiers or IP addresses.
If you disconnect, both of you lose access right away and the widget clears. Everything is deleted after 30 days; if the same two people reconnect within that window, it comes back. Blocking someone also stops new invites from them. Because the server only holds encrypted letter text, reports work from your side: if you report a letter or coupon, your phone attaches its readable text to the report. Deleting your account in the app removes your pair, letters, and coupons.
What WaxSeal leaves out
Letters are text only. There are no photo or voice attachments, no chat thread, and no daily questions to answer. WaxSeal is for the few letters and promises you want to keep, not for everyday messaging.
It is not a relationship coach either. It gives no advice and no compatibility scores, and it keeps no streaks. Its job is narrow: keep a letter sealed until the moment it was written for, and make breaking that seal feel like something.