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

Which is more popular?
Website, pricing, platforms and company facts side by side.
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| Website | yieldstack.ai | kostly-app.com |
| Pricing | ||
| Company | Startup from the United States · 1 - 9 employees · 2025 | Startup from Greece · 1 - 9 employees · 2026 |
| 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,...
Kostly is a cloud-based restaurant costing app designed for everyday use by chefs and owners. With Kostly, you can cost recipes, see the actual food cost and profit margin per dish, and adjust your menu based on real data. The app was created by chefs, for restaurant professionals, and replaces...
What each product offers, as listed by its team.


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


Overall verdict
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Overall verdict
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As answered by people managing YieldStack and Kostly.
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.
Kostly's answer:
Kostly is a dish costing tool for professional kitchens. It shows you the real food cost of each dish, based on proper units of measurement, yields, and actual data — not estimates.
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.
Kostly's answer:
Kostly only calculates cost when the data is sufficient. That's why every dish and subrecipe comes with a Cost Confidence indicator, so you know when you can trust the number and when it needs review.
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.
Kostly's answer:
chef,restaurant,hotel
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.
Kostly's answer:
How the idea started
I'm a chef. And for years I made daily decisions about ingredients, menus, and prices — without always having a clear picture of costs.
I knew what sold.
I knew what people liked. But often I didn't know what really made a profit.
What I saw in practice
In most of the restaurants I worked or collaborated with, costing was done:
roughly,
rarely,
usually in Excel.
The prices of the ingredients changed, but the food cost was not updated.
And so, dishes that we considered "strong" turned out to be loss-making in practice.
Not out of ignorance.
Out of lack of tools.
The real problem
The chef and the restaurateur are called upon to make critical decisions:
what goes on the menu
what goes out
what goes up in price
Without reliable data, these decisions are made on instinct.
And instinct is not enough for a sustainable business.
Why Kostly was created
Kostly was started to solve exactly this problem.
To have:
clear costing per dish,
real food cost,
a clear picture of profit,
without complex systems and without Excel.
A tool made from the kitchen to the business, not the other way around.
The vision
Starting in Greece, Kostly's goal is to help restaurants across Europe — and internationally — work with data, not assumptions.
Because a good dish deserves to be profitable.
YieldStack's answer
AI integrations supporting the platform’s workflows.
Kostly's answer:
Kostly is built using modern web technologies including React, TypeScript, Vite and Tailwind CSS for the frontend, Supabase for authentication, database and backend services, and Stripe for subscription management and payments. AI-powered features are integrated to automate invoice scanning, recipe analysis and food cost optimization.
YieldStack's answer
The largest CRE Lenders in the USA
Kostly's answer:
Kostly is trusted by independent chefs, restaurants, cafés, bars, hotels and hospitality businesses. As a growing SaaS platform, we're continuously expanding our customer base while helping food professionals simplify costing, improve profitability and save time.
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External articles and on-site reviews we used to compare the two products.


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It’s in beta version now, but i see very good results so far ! It’s really helpful and super smart.
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