
StackSource
AI-native commercial mortgage brokerage. One submission, lender matching, and human support through closing. No upfront fees.

AddEvent
CalGet
Add-to-Calendar Button Generator
Kriya AI
Calndr.link
Koalendar
Fantastical 2
Add-to-calendar links, RSVPs and subscription calendars for events

Which is more popular?
Website, pricing, platforms and company facts side by side.
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| Website | yieldstack.ai | addcal.co |
| Pricing | ||
| Company | Startup from the United States · 1 - 9 employees · 2025 | Startup from Australia · 1 - 9 employees · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.


YieldStack helps real estate investors, developers, and brokers find commercial mortgage financing from third-party lenders. Borrowers submit a financing request through one platform. AI supports deal preparation and lender-program matching, while YieldStack’s brokerage team helps compare offers,...
AddCal is an event-sharing platform for getting events into attendees' calendars. Create a single add-to-calendar link or button that works with Google Calendar, Apple Calendar, Outlook, Office 365 and Yahoo. Key features Add-to-calendar links & buttons – one universal link per event, with...
What each product offers, as listed by its team.


An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of AddCal yet.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing YieldStack and AddCal.
YieldStack's answer
AI integrations supporting the platform’s workflows.
AddCal's answer:
Laravel on Laravel Vapor (AWS Lambda), a Vue.js front end, Cloudflare, PostgreSQL on PlanetScale, and Stripe for billing.
YieldStack's answer
YieldStack combines AI-assisted lender matching with hands-on commercial mortgage brokerage. Borrowers submit once, compare financing options, and work with a team that handles structuring, negotiation, and closing coordination. Borrowers approve lender outreach, with no upfront fees and a broker fee paid only at closing.
AddCal's answer:
AddCal combines add-to-calendar links, live subscription calendars and RSVPs in one tool, so organisers don't need separate products for each. One link works across Google, Apple, Outlook, Office 365 and Yahoo. Subscription calendars push updates and cancellations to subscribers automatically. Smart Links let developers generate events on the fly from URL parameters, webhooks or Zapier. There's also an MCP server, so AI assistants can create and manage events directly.
YieldStack's answer
YieldStack helps borrowers evaluate the whole financing offer: rate, leverage, fees, reserves, prepayment terms, and closing requirements. Its platform organizes the process, while its brokerage team helps borrowers find suitable lenders and move the deal forward. One submission gives borrowers a coordinated financing process without an upfront brokerage fee.
AddCal's answer:
The free plan includes unlimited calendar adds and subscription calendars, and paid plans are simple monthly or annual tiers with no per-event fees. Every link comes with analytics. Moving from AddEvent takes one click. AddCal is independently built and run, so support comes straight from the people who build the product.
YieldStack's answer
Commercial real estate investors, developers, operators, and mortgage brokers seeking bridge, DSCR, fix-and-flip, construction, multifamily, and permanent financing across the United States.
AddCal's answer:
Anyone who needs people to actually save and attend their events: webinar and SaaS marketers, schools and school districts, universities, local councils, sports clubs, community and faith groups, and event organisers. It's also for developers who add calendar links to apps, emails and booking flows.
YieldStack's answer
The largest CRE Lenders in the USA
AddCal's answer:
YieldStack's answer
Rommin Adl and Daniel Chesney founded YieldStack to simplify commercial real estate financing. The platform brings deal preparation, lender matching, offer comparison, and closing coordination into one workflow, combining AI-assisted analysis with human brokerage expertise.
AddCal's answer:
In 2020, a webinar invite that worked in Gmail broke in Outlook, and half the attendees couldn't add the event to their calendars. That frustration led to Calndr.link, a weekend hack that offered one add-to-calendar link that worked in every calendar app. Organisers wanted more, so Calndr.link grew into AddCal, which added RSVPs, subscription calendars, embeddable widgets, automation and analytics. Every Calndr.link URL still works. Today AddCal is used by more than 15,000 people and teams in over 120 countries, with more than 25 million calendar adds.
Share your experience with using YieldStack and AddCal. For example, how are they different and which one is better?
When comparing YieldStack and AddCal, you can also consider the following products.

Online platform for commercial real estate loans
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Add to Calendar tools and calendar marketing software that help businesses increase event attendance and audience engagement.
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