# Stacker - Tool: Platform Reviews - Last updated: July 2026 ## TL;DR Stacker AI (stacker.ai) builds internal portals from a conversational prompt in 3-5 minutes — genuinely useful for ops teams with mature Airtable or Salesforce data. But the $199/mo minimum (unverified) is the highest floor in its category, there is no real free tier, and lock-in is complete. Score: 5.6/10. Best for mid-size businesses running client portals over Airtable; a poor fit for solo founders, design-forward brands, or anyone needing code ownership. ## Frequently asked questions ### Is Stacker AI the same as Stack AI or Stacker Holdings? No — these are three different entities. Stack AI (stackai.com) is an enterprise AI workflow automation platform that raised a $16M Series A from Y Combinator in May 2025. Stacker Holdings is a private equity firm. The platform reviewed here is Stacker (stacker.ai) — an internal tools and portal builder that rebranded as 'Stacker AI' in late 2025. Always confirm you are reading about stacker.ai when researching this product. ### Is Stacker worth it in 2026? Stacker is worth the $199/mo entry (unverified — confirm at stacker.ai) if your use case maps closely to what it was designed for: a mid-size business building client or partner portals over Airtable, Sheets, or Salesforce, with multiple external stakeholders who need gated role-based access. If you have fewer than 30 work-email users, Glide's Maker plan ($49/mo) is cheaper. If you need SQL-level data access, Retool is more capable. If you need custom branded UI, WeWeb or Bubble are the better choice. Stacker is worth it only for the specific portal-over-Airtable pattern. ### Does Stacker have a free plan? No. Stacker offers a 30-day free trial only. After the trial, the minimum commitment is the Plus tier at $199/mo (unverified — confirm at stacker.ai). There is no permanent free tier or hobbyist plan. This is the most important pricing fact to know before starting a trial — budget planning must begin from month one. ### What are Stacker's pricing tiers in 2026? Based on a third-party hands-on review (hackceleration.com, 2026), Stacker offers: Plus at approximately $199/mo (3 apps, 100K records, 10 internal users, unlimited external), and Pro at approximately $349/mo (unlimited apps/records/users — unverified). A historical Business tier at approximately $1,000/mo for whitelabel/custom CSS has been referenced in older sources (adalo.com, 2025 — dated) but must be verified. Stacker does not maintain a stable public pricing page — always confirm current pricing directly at stacker.ai before purchasing. ### How does Stacker handle external users (clients, partners)? External users — clients, contractors, partners — are unlimited on both Plus and Pro tiers. This is Stacker's most important pricing advantage over Glide, which charges $5/work-email-user beyond 30 on Business tier. For a B2B portal with 100+ external stakeholders, Stacker's flat-tier model is significantly cheaper than Glide Business with equivalent user counts. External users get role-based access to specific data, with row- and field-level visibility controls configured by the internal admin team. ### Can Stacker replace Airtable Interfaces? Stacker and Airtable Interfaces serve overlapping but different use cases. Airtable Interfaces (and Omni, GA June 2025) are built into Airtable and cost nothing beyond the Airtable subscription — they work best for internal teams where the editors and the interface users are the same people. Stacker adds a separate permission layer for external users (clients, partners) who should not have Airtable editor access. If your portal users are all internal Airtable editors, Interfaces + Omni may be sufficient for free. If external clients or partners need write access to specific data, Stacker's permission model justifies the additional cost. ### What happens to my data if I leave Stacker? Your data is not stored in Stacker — it lives in your connected source (Airtable, Sheets, Salesforce). You can export it from the connected source at any time, independently of Stacker. What you cannot take with you is the Stacker UI configuration and permissions matrix: all views, role definitions, permission rules, and form configurations must be rebuilt on the new platform. For a complex multi-role portal, this rebuild represents a meaningful time investment (typically a 4-6 week project for a mid-complexity portal migration to WeWeb or Bubble). ### Is Stacker HIPAA compliant? No — HIPAA compliance is not included as standard at any published Stacker tier (blaze.tech, 2025). Organizations handling protected health information (PHI) must validate compliance requirements directly with Stacker before building. This likely requires an Enterprise agreement with custom DPA terms. For healthcare applications, alternatives such as Retool (which has HIPAA-compliant options with proper configuration) or a custom stack (Supabase with HIPAA-eligible Business Plan + custom Next.js) should be evaluated. ### How does the Stacker AI generator work? The Stacker AI generator (GA 2026) takes a conversational description of the internal tool you want to build — 'I need a portal where my clients can see their project status and upload files, and my team can update those statuses' — and generates a working set of views, forms, and filtered displays in approximately 3-5 minutes, automatically connected to your Airtable or Sheets data source. The AI works within Stacker's design constraints (opinionated grid, component library) and cannot produce custom CSS or pixel-perfect branded layouts. For standard internal portals where functionality matters more than brand aesthetics, the output is production-ready. ### We're outgrowing Stacker — can RapidDev help us migrate? Yes. The most common Stacker migration triggers are: custom UI requirements that exceed Stacker's grid, backend logic complexity that requires SQL or API building, or pricing that no longer justifies value relative to a custom stack. RapidDev typically scopes Stacker-to-WeWeb or Stacker-to-Bubble migrations as 4-6 week projects for mid-complexity portals. The data itself migrates directly from your connected Airtable/Sheets source — the rebuild is the UI and permissions layer. If you're evaluating whether it's time to migrate, a free scoping call with our team is available at rapidevelopers.com/contact. --- Source: https://www.rapidevelopers.com/review/stacker © RapidDev — https://www.rapidevelopers.com/review/stacker