Tool profile
Stackby: cost, fit and limits
Stackby is a no-code database and spreadsheet-style app builder made by Relytree Technologies Pvt. Ltd. that organizes data in stacks with templates, automations, Powerups and AI fields, aimed at small and mid-size teams. Stackby also publishes free CSV and Excel converters.
What to know first
Stackby lists a free plan for up to five users and paid plans priced per seat, with a large gap between monthly and annual rates: Economy is $9 per seat monthly or $4.2 billed annually. Row caps are per stack, from 1,500 on Free to 250,000 on Enterprise. AI appears as Stackby AI and AI Fields, and connections to OpenAI, Anthropic and Gemini are named.
Stackby at a glance
| Maker | Relytree Technologies Pvt. Ltd. (doing business as Stackby), India |
|---|---|
| Free plan | Yes |
| Entry price | $0 (Economy $9 per seat monthly, $4.2 billed annually) |
| API access | Yes |
| Category | Best AI No-Code Database Tools in 2026, rank 9 of 13 |
| Website | stackby.com |
Who Stackby is best for
Small teams watching seat costs
Economy at $4.2 per user per month on annual billing is the lowest paid seat among the tools we ranked, with unlimited read-only guests.
Marketing and sales operations
AI templates for a content calendar, product launch, company enrichment and people enrichment give a team starting points for enrichment work.
Teams that link tools together
Zapier, Make, Slack and Microsoft Teams are named, and API Connectors on the homepage pull outside data into stacks. They fit teams that already route data through automation tools and want AI steps in the same flow.
Stackby plans and pricing
| Plan | Price | What it includes |
|---|---|---|
| Free | $0 per seat per month | Up to 5 users, 5 editors and 50 read-only users, 20 stacks, 1,500 rows and 2GB attachments per stack, 100 internal automation runs. |
| Economy | $9 per seat per month billed monthly; $4.2 per user billed annually | Unlimited read-only guests, 25 stacks, 7,000 rows and 6GB attachments per stack, 1,000 automation runs, 3 apps per stack. |
| Business | $18 per seat per month billed monthly; $8.3 per user billed annually | 50 stacks, 50,000 rows and 20GB attachments per stack, 25,000 automation runs, all Powerups (25+) and 2FA. |
| Business Plus (annual view: Pro) | $35 per seat per month billed monthly; $12.5 per user billed annually | 100 stacks, 100,000 rows and 50GB attachments per stack, 100,000 automation runs, 20 apps per stack and an enterprise admin panel. |
| Enterprise | Custom | Unlimited stacks and read-only guests, 250,000 rows and 1,000GB attachments per stack and SAML single sign-on. |
Checked November 2026.
What Stackby does
- Stackby AI and AI Fields
- Stackby AI and AI Fields are labeled new on the homepage. AI templates cover a content calendar, product launch, company enrichment and people enrichment. The AI Fields run inside stacks, so a column can be filled from other columns, and the AI templates give starting structures for enrichment work.
- Automations and Form Builder
- Automations and a Form Builder are both labeled new, with internal automation runs counted per plan, from 100 on Free to 100,000 on Business Plus.
- Powerups
- More than 25 Powerups are included from Business upward, adding features such as extra field types and connections to outside services. Powerups are the paid extension layer, and the pages count them as 25-plus without listing each one, so check the catalog for the ones you need.
- Converters and templates
- Free CSV to Database and Excel to Database converters give a quick way to turn a file into a stack, and a Custom Databases solution page collects templates.
- Interface designer
- An interface designer with a custom domain is part of Business, so a team can publish a branded front end over a stack. Business also lists 2FA, so a team that wants a branded interface and stronger sign-in lands on the same tier.
How Stackby handles your data
The privacy policy limits access to customer content to listed purposes and says nothing about training models on it. It states that data may be stored or transferred outside the European Economic Area and that attachments are stored on Amazon AWS S3, without naming a region. Content is kept as long as needed for the service, deleted content may remain in archives or backups, and permanent deletion can be requested by email to the privacy address. The policy references GDPR and EU model contractual clauses but names no certification.
Where Stackby falls short in practice
- Per-stack row caps. Free stops at 1,500 rows per stack and Economy at 7,000. Teams with large tables need Business, where the per-stack ceiling is 50,000. Counting rows per stack, not per workspace, means a team can add stacks to stay below a cap, but linked data across stacks becomes awkward.
- Plan naming is inconsistent. The top paid plan is Pro in the annual view and Business Plus in the monthly view, which makes comparisons and invoices confusing. A buyer reading the annual page sees Pro, while the monthly page names the same tier Business Plus, so quotes should name the price and limits.
- Unstated hosting and training policy. The pages give no hosting region and no statement on model training, and data may leave the European Economic Area. Data may leave the European Economic Area and attachments sit on Amazon AWS S3, so European buyers should ask about regions and model providers.
Works with
Alternatives to Stackby
Stackby: common questions
How much does Stackby cost per user?
Economy is $9 per seat per month billed monthly or $4.2 per user billed annually. Business is $18 monthly or $8.3 annually, and Business Plus $35 or $12.5. Free allows five users. Always confirm which billing view you are reading.
What is a stack in Stackby?
A stack is the container for tables, and plan limits apply to it: 20 stacks on Free, 25 on Economy, 50 on Business and 100 on Business Plus. Rows and attachments are capped per stack, so one large table can force a higher tier.
Which AI services does Stackby connect to?
The homepage names OpenAI, Anthropic and Gemini among the works-with items, and describes Stackby AI and AI Fields as new. We did not run them, so test which model handles your data and whether the privacy policy covers that provider.
Does Stackby store data in Europe?
The pages do not specify a region. The privacy policy says data may be stored or transferred outside the European Economic Area and that attachments sit on Amazon AWS S3. Ask the vendor for a hosting region in writing. Contact the vendor for the region where your stack and its attachments would be stored.
Can read-only users view stacks for free?
Free allows 50 read-only users beside five editors, and Economy lists unlimited read-only guests. That lets a small team share dashboards widely while paying only for editors. Editors are the paid seats, so cost tracks the number of people who change data, not the number who read it, which keeps dashboards cheap.