Side by side
Haiilo vs Stacker
Both stand on portal software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Paid AndroidAPIiPhone+1
Haiilo combines employee communications, knowledge features, and a mobile app, with hosting choices in the EU or US. Pricing is available on request, and integrations generally cost extra.
Visit Haiilo Free trial APIWeb
Stacker combines workplace-connected agents with scheduled tasks, multiple channels, and a REST API. Standard costs $50 a month for 250 monthly credits, while $100 in free credits are available without a card.
Visit StackerThe facts
| Haiilo | Stacker | |
|---|---|---|
| Free plan | No | A free trial |
| Open source | Not published | Not published |
| Runs on | Android, API, iPhone, Web | API, Web |
| Lowest paid plan | Employee Advocacy — Starter: $15 per seat a month | Standard: $50 a month |
| Plans published | 4 | 2 |
| Maker | Not published | Stacker |
| Website | haiilo.com | stacker.ai |
| On portal software | #15 of 28 | #19 of 28 |
Haiilo: what it does well
- Targets communications by role, location, or context.
- Knowledge tools include AI search, summaries, wikis, and hubs.
- Mobile app supports feeds, chat, communities, and documents.
- Customers can choose EU or US hosting.
- States ISO 27001 certification and SOC 2 Type II compliance.
What to know first
- Pricing is available on request.
- Integrations generally involve additional costs.
- The maker says most customers start at around 500 employees.
Stacker: what it does well
- Agents can navigate websites, including tools without an API.
- Standard includes Slack, email, and web channels.
- Lists 2,000+ integrations and 32 built-in data connectors.
- Offers $100 in free credits without a card.
What to know first
- Standard includes 250 credits per month.
- Agents pause when monthly credits run out.
- No free plan is listed.
Alternatives to Haiilo Alternatives to Stacker The whole list

