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Stackby : The Spreadsheet That Thinks Like a Database

A no code database platform that blends spreadsheets, AI agents, and automation, with strong review scores and documented reliability complaints.

Elise ReedEditor-In-Chief & Creative DirectorSep 28, 202611 min read
Stackby : The Spreadsheet That Thinks Like a Database

Stackby wants to be the spreadsheet that thinks like a database. The pitch is simple enough. Keep the grid you already know, then layer relational tables, AI agents, and automations on top so non technical teams can build their own internal tools. On paper that covers a lot of ground, from CRM to marketing operations to inventory. Public reviews back up the flexibility, but they also surface a steady undercurrent of bugs and performance complaints.

Here, we break down what Stackby does well, where it stumbles, and who should actually consider it.

What Is Stackby?

Stackby is a no code database platform built by Relytree Technologies. Founder Rachit Khator started the company in 2018 after running into the limits of spreadsheets for operational work, and the product launched publicly through AppSumo in January 2020. The core idea has not changed much since. Keep the grid people already know, then add relational links, multiple views, and automation on top.

Today Stackby markets itself as the spreadsheet that thinks like a database. That line sums up the pitch well. It sits somewhere between a plain spreadsheet and a full internal tool builder, aimed at marketing, sales, ops, and HR teams that want custom workflows without hiring a developer.

The foundation is a relational database with more than 30 column types. Tables link to each other, so a record updated in one place flows through to linked records elsewhere. Views cover Grid, Kanban, Calendar, Gallery, Form, and more, which lets the same data serve different teams without duplication.

The feature that stands out most is API columns. Instead of routing external data through a third party tool like Zapier, you can connect a column directly to an external service and pull live data into a cell. For marketing and reporting work, that removes a lot of manual entry.

Core Features Deep Dive

  1. 01

    Relational Database

    The foundation is a relational database with more than 30 column types. Tables link to each other, so a record updated in one place flows through to linked records elsewhere. Views cover Grid, Kanban, Calendar, Gallery, Form, and more, which lets the same data serve different teams without duplication.

  2. 02

    API Columns

    API columns are the most distinctive feature. You can connect a column directly to an external service and pull live data into a cell, without routing everything through a tool like Zapier. For marketing reporting and content tracking, that removes a lot of manual entry.

  3. 03

    AI Co-builder and AI Fields

    The Co-builder scaffolds databases from plain language prompts, suggesting tables, fields, and views as you go. AI Fields let models generate or analyze content inside a column. Both are newer parts of the product, so independent evidence on them is thinner than for the core database.

  4. 04

    Interfaces

    Interfaces turn underlying tables into role specific front ends. Teams can build custom portals and lightweight apps that hide raw table complexity from end users. This shipped in 2026 and is a clear step toward internal tool building rather than just data storage.

  5. 05

    Automations

    Automations handle triggers and actions like row creation, updates, emails, and webhooks. This is where users get the most leverage once a database is set up. Independent reviews praise the automation coverage but also flag reliability complaints for some users.

  6. 06

    Open flags

    Five feature blocks, each tracing to official documentation or independent reviews. AI and Interfaces carry thinner independent evidence because they are newer. No hands on testing was performed.

User Experience and Onboarding

Public reviews suggest Stackby is quick to pick up for anyone who has used a spreadsheet or a tool like Airtable. Basic lists, templates, and forms get teams moving fast, and one Capterra reviewer described importing from Airtable as straightforward with little cleanup.

The friction shows up later. Reviewers on G2 and Capterra note that advanced formulas, custom filter logic, and multi step automations carry a real learning curve. That is typical for a database first tool, but it is worth knowing before you promise a non technical teammate that they can run it on day one.

Mobile is the weaker area. Some G2 reviewers criticize the mobile experience, and interface polish gets mixed feedback compared with competitors such as SmartSuite. On desktop, most users describe the layout as functional rather than modern.

Support gets steady praise in reviews, which matters for a product with a learning curve. The template library also shortens setup, since common use cases like CRM, content calendars, and project trackers come prebuilt.

Onboarding is helped by the free plan, which supports up to five users, so a small team can test real workflows before paying. The 14 day Business trial adds room to explore paid features without a credit card.

The overall picture is a tool that rewards patience. Teams that invest time in setup tend to describe it as flexible and worth the effort, while those expecting instant results run into the same learning curve and performance complaints that show up across review sites.

Stackby's pricing runs on a tiered subscription model with a free forever plan and four paid tiers. The free plan supports up to five users and covers basic database work, which makes it usable for small teams rather than just a trial window.

Paid plans scale by data volume and feature access rather than seat count alone. Economy starts at $10 per user monthly on monthly billing, while annual billing drops the effective rate to $8.3 per user monthly. Business sits at $18 monthly or $16.6 per user monthly billed annually. Pro runs $30 monthly or $24.9 per user monthly billed annually, and Enterprise is custom pricing through sales.

The key limits that separate tiers are rows per stack, automation runs, API connectors, and attachment storage. Economy allows 25 stacks and 7,000 rows per stack, with 1,000 internal automation runs and 500 automatic API runs per month. Business moves to 50 stacks, 50,000 rows per stack, 25,000 automation runs, and 1,000 API runs. Pro pushes further to 100 stacks, 100,000 rows per stack, 100,000 automation runs, and 5,000 API runs.

Attachment storage and history also scale by tier. The free plan gives 2GB per stack and two weeks of activity history, while Economy allows 6GB and six months. Business and Pro both offer 12 months of activity history and database snapshots, with 20GB and 50GB of attachment storage respectively. Stackby does not charge for read-only guests or shared view links, which makes it cheaper than some competitors when external collaborators need visibility without editing rights.

Pricing & Features

Free

$0forever

For individuals and small teams getting started

  • Up to 5 users, 5 editors plus 50 read only guests
  • 20 stacks with 1,500 rows per stack
  • 2GB attachment per stack and 2MB file upload limit
  • 100 internal automation runs and 2 column linked API connectors
  • 1 app per stack and 2 weeks activity history
  • Manual refresh and Interface designer

Economy

10$per user per month

For small teams to get organized

  • Unlimited guests
  • 25 stacks with 7,000 rows per stack
  • 6GB attachment per stack and 5MB file upload limit
  • 1,000 internal automation runs and 500 automatic API runs per month
  • 10 column linked API connectors with automatic refresh
  • 3 apps per stack and 6 months activity history
  • Custom branded forms and color formatting
  • Interface designer with publishing

Business

Our pick
$18per user per month

For growing teams

  • Unlimited guests
  • 50 stacks with 50,000 rows per stack
  • 20GB attachment per stack and 25MB file upload limit
  • 25,000 internal automation runs and 1,000 automatic API runs per month
  • 15 column linked API connectors with automatic refresh
  • 10 apps per stack and 10 synced tables per stack
  • 12 months activity history and database snapshots
  • Table, column, and view level permissions with personal and locked views
  • 2FA and priority support
  • Interface designer plus custom domain

Pro

$30per user per month

Supercharge your workflows with a power packed plan

  • Unlimited guests
  • 100 stacks with 100,000 rows per stack
  • 50GB attachment per stack and 50MB file upload limit
  • 100,000 internal automation runs and 5,000 automatic API runs per month
  • 20 column linked API connectors with automatic refresh
  • 20 apps per stack and 15 synced tables per stack
  • 12 months activity history and database snapshots
  • Table, column, and view level permissions with personal and locked views
  • 2FA, enterprise admin panel, and priority support
  • Interface designer plus custom domain

Enterprise

CustomContact Sales

Contact support for custom enterprise plans

  • Unlimited guests and unlimited stacks
  • 250,000 rows per stack
  • 1000GB attachment per stack and 100MB file upload limit
  • 250,000 internal automation runs and 10,000 automatic API runs per month
  • 15 column linked API connectors with automatic refresh
  • 25 apps per stack and 20 synced tables per stack
  • 3 years activity history and database snapshots
  • Table, column, and view level permissions with personal and locked views
  • SAML single sign on, enterprise admin panel, and priority support
  • Interface designer plus custom domain

Pricing, plan names, and feature limits reflect the live Stackby pricing page at the time of writing and can change without notice. Confirm current plans, limits, and terms directly through Stackby before purchasing.

FAQ

“Stackby turns a familiar spreadsheet into a relational database with AI and automation built in. For teams that want custom internal tools without writing code, it covers a lot of ground at a price that stays reasonable.”
Elise Reed

Good

  • Familiar spreadsheet layout paired with real relational database depth.
  • API columns that pull live external data straight into a table cell.
  • Broad workflow coverage, from CRM to marketing ops to inventory.
  • Strong public review scores across G2, Capterra, and AppSumo.
  • Active development, with AI and Interfaces features shipping through 2026.
  • Large template library that shortens setup time for common use cases.
  • Free forever plan that supports up to five users.

Friction

  • Independent reviews repeatedly report bugs and slow performance.
  • Some users hit integration limits compared with larger competitors.
  • Hard caps on rows, automations, and API calls push upgrades.
  • Interface and mobile experience draw criticism from some reviewers.
  • Mastering advanced formulas and multi step automations takes time.

How it compares

Spec sheet

Airtable

Starting paid price
$20/user/mo
Free plan
Yes, up to 5 editors
Core database model
Relational with linked records
Native API data pull
No native column to API
Views
Grid, Kanban, Calendar, Gantt, Gallery

Stackby

Our pick
Starting paid price
$10/user/mo
Free plan
Yes, up to 5 users
Core database model
Relational with 30+ column types
Native API data pull
Yes, columns connect to live APIs
Views
Grid, Kanban, Calendar, Form, Gallery

Monday.com

Starting paid price
$9/user/mo
Free plan
Yes, up to 2 seats
Core database model
Work management first
Native API data pull
No native column to API
Views
Board, Timeline, Calendar, Gantt

The verdict

8.4
Out of 10
Core database power
8.7
Ease of use
8.5
Automation and API
8.4
Views and interfaces
8.2
Pricing and value
8.6
Support and reliability
8.1

Scores highest in Core database power (8.7), where the product earns its keep. Lowest in Support and reliability (8.1), the most obvious place to improve before the next release.

Elise Reed
Editor-In-Chief & Creative Director

Elise Reed

Helping you find the right SaaS tools.

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