Online store demo: 3 live apps built by AI models
Every app below is a working online store, built by an AI coding model from the PlanSmith Online Store planner. They all run with sample data. Open one, sign in with the demo account it shows, and try it.
Open one and try it.
LiveHarbor & Pine
The top build: all fifteen lifecycles driven end-to-end without producing a single in-scope failure. Duplicate-charge safety (revisiting a paid gateway page never re-charges), an in-transaction last-unit check that blocks overselling, and price edits locked to the owner across three separate layers. Click Owner on the staff sign-in.
Open live demo →
LiveAlder & Stone
The strongest payment engineering: a signed-callback test provider with confirm, decline, pending and abandon outcomes, where a confirmed order is recorded exactly once and replays cannot charge it twice. Also the tightest permissions on the board: catalog staff never see customers, orders or exact prices, and CSV imports refuse to touch price or stock at all. Pick a role on the store-team demos screen.
Open live demo →
LiveNorthstone Goods
The widest checkout: card, PayPal and pay-on-delivery, with a test-card simulator that accepts 4242… and declines 4000…0002, and orders that settle honestly into paid, failed, abandoned or partially refunded. Stock only leaves the shelf once payment succeeds. Click “Continue as Owner” (password northstone-demo).
Open live demo →Same planner, different results.
| Rank | Build | Model | Score | In one line |
|---|---|---|---|---|
| 1 | Harbor & Pine | Claude Fable 5 | 95 | The top build: fifteen lifecycles, no failures found. |
| 2 | Alder & Stone | GPT-5.6 Sol | 94 | Strongest money handling and the tightest permissions. |
| 3 | Northstone Goods | Grok 4.5 | 91 | Best when payment-method breadth matters. |
Scores are as found at audit. The full findings for every build, both what it does well and what went wrong, are on the online store build-off board.
What to know before you build.
- Ecommerce database design: schema, SQL and ER diagram
- Free ecommerce platform: what the free options really cost, and how to test one before you sell
- Ecommerce website features: the counted list from 90 real store platforms
- We had three AI models build the same online store. Taking the order was easy. Taking the money exactly once wasn't.
- Choosing an ecommerce platform: six different businesses, six different answers
- B2B ecommerce platform: the seven things a consumer store cannot do
- Best ecommerce platform for SEO: the criteria that decide it
- Why AI coding agents over-build your app, and how to stop it