Kong Reviews
Kong Reviews

Personal tracker (the pantry bean tracker): what to build it with and what it costs

Track things you own or do, like the beans in your pantry, with a list per person and a reminder when you're running low.

Sample PRD

  • Sign in
  • A list of items with quantities and dates
  • A running-low reminder by email

What it needs

  • Email and password sign-in: each person keeps their own list
  • Transactional email (nice to have): a running-low reminder

MVP: about 5 users, $0/mo

Someone with an idea or a solo founder. Built with an AI app builder: describe it and it builds and hosts it.

WhatPickMonthly
AI coding agentBase44 Starter$16
EmailMailgun Free$0

Open the full MVP plan · Use the MVP stage in Claude

Growth: about 2,000 users, $4.14/mo

A funded team or one with traction. Built with an AI coding agent for each of about 3 developers.

  • Error tracking: know when something breaks
  • Daily backups: daily backups once real people depend on it
WhatPickMonthly
AI coding agentAugment Code Standard$20
HostingFly.io Machine, shared-cpu-1x with 256MB RAM$3.79
DatabaseNeon Launch$0.35
Sign-inAuth0 Free$0
EmailMailgun Free$0

First cost jump: Mailgun: Free limits reached, upgrade to Basic

Open the full Growth plan · Use the Growth stage in Claude

Scale: about 50,000 users, $64.84/mo

An established product. Built with an AI coding agent with team billing and admin for about 10 developers.

  • Error tracking: know when something breaks
  • Daily backups: daily backups
  • Point-in-time recovery: restore to any minute after a bad deploy
  • Multi-factor authentication: two-factor sign-in for accounts worth stealing
WhatPickMonthly
AI coding agentAugment Code Standard$20
HostingFly.io Machine, shared-cpu-1x with 256MB RAM$42.19
DatabaseDigitalOcean Managed PostgreSQL Single node (1 vCPU, 1 GiB RAM, 10 GiB disk)$15.15
Sign-inWorkOS AuthKit$0
EmailAmazon SES A la carte$7.50

First cost jump: DigitalOcean Managed PostgreSQL: Single node (1 vCPU, 1 GiB RAM, 10 GiB disk) limits reached, upgrade to Single node (1 vCPU, 2 GiB RAM, 30 GiB disk)

Open the full Scale plan · Use the Scale stage in Claude

What drives the cost

  • Usually free tiers at small scale
  • Reminder emails as users grow

Lock-in

Low: simple data you can export.

Use this in Claude (with Kong Reviews connected at https://kongreviews.com/mcp)

What do I use to build this?
And how much will it cost?What do you want to build?

Describe it in a sentence, like “an app that tracks the beans in my pantry”. You get what to build it with, what it runs on, and what it costs now and as it grows, with a source for every price.Describe it and press Plan. You get what to build it with, what it runs on, and what it costs now and as you grow, after the credits you qualify for.

What Are You Building?

Edit Your Plan

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Budget & Credits

Read a PRD

Prices read from each vendor’s own pricing page

  • Vercel
  • Supabase
  • Stripe
  • Clerk
  • Resend
  • Neon
  • Cloudflare
  • PostHog

317 services listed across 36 categories. 70 priced in full, plan by plan.

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Describe it. Get one pick per category, and why.

See where the bill jumps before your users do.

Free tiers, plans and limits, side by side.

Already built? Find what to keep and what to change.

What you actually pay, next to what you planned.

See what real products are built on.

Recordings of the actual app. Inputs are illustrative; Billing shows an example account.

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It plans the stack, prices it at your scale, and hands back package names, environment variables and docs. Your assistant writes the code.

Then keep going in the same chat. Pick up a saved project, price a change before it is built, track setup step by step, and ask why the bill went up.

Free while in preview.

  • Claude
  • ChatGPT
  • Cursor
  • VS Code

I’m building a booking app for yoga studios with sign-in, payments and email reminders. What should it run on, and what will it cost at 20,000 users?

Example prompt. The answer is a live result from recommend_stack, the tool your assistant calls, at today’s prices.
No vendor pays to be listed or ranked higher, and there are no referral links.

Every price change is public: who changed what, when and why.

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Point it at your files, repository or website to see what to keep and what to change. Then bring in what you actually pay, next to what you estimated.

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Spend less time collecting bills

Import a CSV, upload a text-based PDF, paste an invoice or enter an amount. Recurring subscriptions add completed months automatically.

Supported OpenAI, Anthropic, Vercel, Stripe, AWS and DigitalOcean connections sync completed months nightly. Billing access depends on the provider; personal Claude API keys cannot read organization costs.

Forward receipts when they arrive

When receipt forwarding is enabled, send receipts to your private billing address and review the service, month and amount in Billing. It reads the email body, not attachments; upload PDFs separately.

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