HelpStack review: an AI shared inbox for email, Instagram, Facebook, WhatsApp and chat. Free plan, paid plans from €29/month plus VAT.
Researched and fact-checked by Bartu Cavusoglu · Updated October 26, 2026
HelpStack is a shared inbox for customer support that uses AI to draft replies. It pulls conversations from email, Facebook Messenger, Instagram DMs, WhatsApp and a website chat widget into one screen, so a small team can answer everything without moving between apps.
The product comes from a team in Ljubljana, the same group behind SpaceGuardian, which builds AI systems for satellite collision avoidance. They built HelpStack for their own photo business, which sells under four brands across Slovenia, Croatia, Slovakia and Poland, and later opened it to other businesses.
Its focus is small teams and online stores rather than large help-desk operations. The company positions it as simpler and more affordably priced than the help desks built for big teams.
You connect channels to the inbox. Facebook and Instagram connect through OAuth, email connects with IMAP credentials, and the website widget installs with a single script tag. The company says the first channel takes under 15 minutes.
Incoming messages appear in real time and can be filtered by status, such as Needs you, Draft ready, Waiting on customer and Done. For each conversation the AI prepares a draft reply, and the agent reads it and approves it in one click.
Messages are translated automatically, so an agent sees a customer's message in their own preferred language. How many AI credits each reply uses depends on the model chosen, with the default model being the cheapest.
The core is the unified inbox with search, conversation threading and assignment to agents. Real-time sync means new messages show up as they arrive. AI reply suggestions sit on top, with a human approving each send, and auto-reply is available on paid plans only.
Auto-translation covers more than 40 languages through Google Cloud Translate, which helps stores that sell across borders.
For e-commerce, replies can include product cards showing a picture, price, stock and an Add to cart button. HelpStack reads this data from the store's own product pages, so the AI cannot invent a price. Other shops can add their own buttons, such as Save for later or Book a fitting.
HelpStack is an AI-assisted shared inbox for customer support. It brings email, Facebook, Instagram, WhatsApp and website chat into one place and drafts replies that agents can approve.
HelpStack has a permanent Free plan at €0. Starter costs €29 per month plus VAT and Growth costs €79 per month plus VAT. Enterprise pricing is custom and handled by sales.
Yes. The Free plan is permanent and needs no credit card. Starter and Growth also include a 14-day free trial.
The FAQ lists email over IMAP, Facebook Messenger, Instagram DM and a web chat widget as native channels. The homepage also names WhatsApp. The Free plan allows up to 10 channels, and paid plans offer unlimited channels.
Yes. Product cards with an Add to cart button work on Shopify and WooCommerce out of the box. A WooCommerce plugin for WordPress adds AI answers, a chat widget and an inbox.
Auto-translation covers more than 40 languages through Google Cloud Translate. Agents see inbound messages in their preferred language.
On Free and Starter, AI generation pauses until the next billing cycle or until you top up. Growth and Enterprise get fair-use alerts instead of a hard stop.
HelpStack states that data is encrypted with AES-256-GCM at rest and TLS in transit, is hosted in the EU, and is GDPR compliant. It also says data is never shared with third parties.