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Example · Apps with sign-in

Describe an app with sign-in. Your AI builds it. We keep it safe.

Client portals, clubs, loyalty cards and trackers, in your site’s design. Page Lemon runs the sign-in and keeps each user’s records private. Your own AI builds the app and changes it later from one message, so there’s no app builder to learn and no AI credits to buy.

Ask your AI:

Build me an expense app on PageLemon.com where each user logs expenses with a receipt photo

Join waitlist Try it live: open a demo app
Example: you ask your AI chat to build an expense app where each user logs expenses with a receipt photo. It builds the app in your design, with sign-in by a code sent to each user’s email, and sends you a link to approve it. On a user’s phone, the app lists their own expenses, each with a receipt, and an Add an expense button.

Works in the AI chat you already use

  • No editor to learnYou say what you want in plain words.
  • No AI credits to buyUse the AI plan you already have.
  • Switch AI any timeClaude today, ChatGPT tomorrow. Your site stays the same.
  • Your AI runs it tooAfter launch, ask it who booked, who wrote and what changed.
  • Claude
  • ChatGPT
  • Perplexity
  • Le Chat
  • Cursor
  • And more

How it works

You describe it and approve it once. After that, users join and look after their own records.

  1. Describe your app

    Say what users do. Your AI starts from an app template, like a client portal or a stamp card, and builds the pages for users in your site’s design. Your public pages stay open to everyone.

  2. Approve it once

    Your AI gives you one Page Lemon link. There you confirm your users are adults and that you won’t collect health data, choose how long to keep data of users you remove, and turn the app on.

  3. Users join and use it

    They sign in with their email and a one-time code, then add their entries, with photos straight from their phone. You run it from your chat: Run it by chat.

An app you can trust with your customers

The worry with an AI-built app is who can see what. That part isn’t left to your AI.

Safe because it isn’t generated code

Your AI writes the pages. Page Lemon’s servers decide who sees what. Sign-in, each user’s records and files, and pages for one plan only are checked on our servers, the same tested way for every site. Anything a user isn’t allowed to see answers as if it isn’t there.

  • Sign in without a password

    Users type their email and the code we send them. No Page Lemon account, nothing to remember.

  • Records with photos

    Users add entries with a photo from their phone’s camera or a PDF, up to 10 MB each. Location data is removed from photos.

  • Free and paid memberships

    Up to 10 plans per site, each with its own pages. Paid memberships run on your own Stripe account, for users in your own country, on every paid plan.

  • On any phone

    It’s part of your website. Users add it to their home screen with your icon and open it like an app, with nothing to download.

Good to knowApps are for adults only, with no health data and no card, bank or ID numbers: you confirm this when you turn your app on (Acceptable Use Policy). For an app in the app stores, a marketplace or a large community with feeds, another tool fits better.

Charge your way, paid to your own Stripe

Free and paid tiers, monthly or yearly, or a one-off price. Tell your AI in one sentence; it sets up the plans, the pages each one opens and the pay buttons. The prices below are examples: each business sets its own, in its own currency.

  • A caféMelbourne

    Example: a Melbourne café’s app with two plans: a free stamp card, and a Coffee pass at the café’s own price of A$45 a month for a coffee every weekday.

    Free plus a monthly pass

    Tell your AI:

    Add a Coffee pass to my café app: A$45 a month for a coffee every weekday. Keep the stamp card free.

  • A gymBerlin

    Example: a Berlin gym’s app with three plans at the gym’s own prices: Basic at €25 a month for open gym, Plus at €39 with classes, and Premium at €59 with a personal training plan.

    3 tiers, each opening more

    Tell your AI:

    Give my gym app 3 plans: Basic at €25 a month for open gym, Plus at €39 with classes, and Premium at €59 with a training plan.

  • A pottery courseKyoto

    Example: a Kyoto pottery studio sells its weekend course at its own one-off price of ¥24,000, with a Buy button that opens the studio’s Stripe payment page.

    A one-off price Live

    Tell your AI:

    Add a Buy button for my weekend pottery course, ¥24,000. Here’s my Stripe Payment Link.

  • A writers’ communityAustin

    Example: an Austin writers’ community with a free membership for the weekly letter, and every post and the archive at its own price of $8 a month or $80 a year.

    Free, monthly and yearly

    Tell your AI:

    Add plans to my writers’ club: the weekly letter free, and every post and the archive at $8 a month or $80 a year.

  • What each plan opensIts own pages, which fields users fill and how many entries they add, like receipt uploads on Pro only.
  • Up to 10 plans per siteFree and paid side by side, each at your price and in your currency.
  • Users manage their own billingThey change their card or cancel on Stripe’s own page, from their account.
  • Gifts, staff and pressLink a subscription you made in Stripe yourself, and that person gets the plan.

Good to knowBuy buttons work today on every paid plan, with no Page Lemon fee. Paid memberships are on App and up, monthly or yearly, with a Page Lemon fee on each payment, on top of Stripe’s own fee. Users pay by card, from your own country.

Open a ready-made app

Each starter is a working app with its public page, pages for users and a privacy notice. Paste its prompt, then change anything by asking.

All app templates

Plans

Apps are on App and up. Each plan has room for a set number of users.

  • What it costs: your plan, plus, for paid memberships (every paid plan), a Page Lemon fee on each payment, on top of Stripe’s own fee.
  • Users count once per person across all your sites. At your limit, new sign-ups wait; users you already have are never locked out. Room for extra users is coming soon.
  • Up to 10 plans per site, 10 MB per file and 500 MB per user. Files count toward your storage.
See pricing

Related: Run it by chat AI in your app Loyalty program Payments

Questions

Do I need to know how to code?

No. You describe the app in your AI chat, and your AI builds the pages. Page Lemon runs the sign-in, the users’ data and the hosting.

Do users need a password or an account?

No. They sign in with their email and a one-time code we send them. They don’t need a Page Lemon account, and they never see one.

Can users pay for a plan?

Yes, on every paid plan, monthly or yearly. Users pay on your own Stripe account, so you are the seller and the money goes to you. Users pay from your own country: their card and billing address must be from there.

Can my AI read what users write?

Only if you let it. In your Dashboard, after an extra sign-in check, you choose which lists and which AI app may read them, and confirm that your privacy notice tells users. Every read is logged. Your AI never changes or deletes what a user wrote.

Can users leave and delete their data?

Yes. “Leave this site and delete my data” is on every user’s account page. For users you remove, you choose how long their data is kept. You can download every entry with its files from your Dashboard at any time.

Your app with sign-in is one message away.

Page Lemon is invite-only for now. Join the waitlist, and we’ll email you when it’s your turn.

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