
SMS-man.com
Smspva
HeroSMS
AnonymSMS
Buynumber.io
Temp SMSS
SMSCode.gg
Temporary Phone Numbers & Virtual Numbers for SMS Verification

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

Which is more popular?
Based on our record, quackr seems to be more popular. It has been mentioned 49 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | quackr.io | yieldstack.ai |
| Pricing | ||
| Company | Startup from the United Kingdom | Startup from the United States · 1 - 9 employees · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.


Quackr provides temporary phone numbers, temp numbers, and virtual numbers to receive SMS verification online without a physical SIM card.
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,...
What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
Quackr is recommended for users who prioritize their privacy by not sharing personal phone numbers, frequent digital nomads engaged with international services, and anyone attempting to bypass SMS verification without a personal or permanent number.
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing quackr and YieldStack.
quackr's answer
Quackr stands out by offering a seamless bridge between free public access and premium private security. Unlike many competitors that rely solely on low quality VoIP numbers (which are often blocked), Quackr provides Private Non-VoIP Numbers sourced from real SIM cards. This ensures high deliverability rates for strict services like Tinder, Gmail, and Banking apps, giving users a level of reliability that standard free sites cannot match.
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.
quackr's answer
Quackr is built on a robust cloud infrastructure designed for speed and security. We utilize advanced telecommunications APIs to bridge real world SIM networks with our digital dashboard, ensuring near instant SMS delivery. Our frontend uses modern frameworks (like React/Next.js) to ensure a fast, responsive experience on both mobile and desktop.
YieldStack's answer:
AI integrations supporting the platform’s workflows.
quackr's answer
Quackr started with a simple mission to stop SMS spam. We realized that requiring a personal phone number for every minor sign-up was a privacy risk. What began as a free tool to protect users from telemarketers has evolved into a comprehensive privacy platform, helping thousands of users globally verify accounts securely without exposing their real identity.
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.
quackr's answer
Our primary audience consists of privacy conscious professionals, digital marketers, and cybersecurity enthusiasts. This includes social media managers managing multiple accounts, developers testing authentication flows, and individuals who want to secure their personal data against data breaches. They are users who value their digital footprint and are willing to invest in secure, private verification methods.
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.
quackr's answer
Competitors often provide recycled, spam filled numbers that fail verification checks. Users choose Quackr because we offer guaranteed privacy. With our paid rental option, users get a dedicated number that is theirs alone no shared messages, no interference. We combine the ease of a "one click" free service with the professional reliability of a paid private line, giving users the best of both worlds.
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.
YieldStack's answer:
The largest CRE Lenders in the USA
Share your experience with using quackr and YieldStack. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


There are lots of them: https://quackr.io/ https://receive-smss.com/ https://sms24.me/ https://temp-number.com/ https://onlinesim.io/. - Source: Hacker News / about 1 year ago
I'm also curious because it seems like using a phone with no strings attached today seems almost impossible unless you get an actually old phone, which either works poorly or costs a lot as part of a retro collection or something. Even... Source: about 3 years ago
You can also take this poll over at bettor edge, and whichever team gets the most votes, will get an extra 5k donated to their respective charity (the loser will still get a 1k donation). So if you are so inclined, head over there and... Source: about 3 years ago
Tracking YieldStack since Mar 2026.
When comparing quackr and YieldStack, you can also consider the following products.

SMS-man offers a virtual numbers to receive SMS and create multiple accounts on WhatsApp, Telegram, Instagram, Twitter, Amazon and others. The SMS-man service provides numbers of such countries as China, US, India, Russia, UK, Germany, Ukraine etc.
Compare SMS-man.com to quackr or YieldStack:

Online platform for commercial real estate loans
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The best SMS activation site! Operating since 2013. Payment by card. 60+ countries numbers. Purchase without registration!
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Receive SMS online to virtual numbers — use directly on site or via API to register accounts of any service and application, receive profits and discounts
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Totally free online service whereby you can Receive SMS Online, without the need of inputting your own mobile/cell number.
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Buy Virtual Phone Number for SMS Verification with Bitcoin & Crypto(BTC, USDT, ETH, XMR, etc) - Receive SMS & OTP Online - Verification for WhatsApp, Telegram, Facebook, other account
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