Flatpay vs Square
Flatpay vs Square, compared side by side on 17 data points: what each one does, how big it is, what it has raised, the tech running each site, and what users report. We score both out of 100 on traction, team and visibility: Flatpay is on 30/100 and Square on 67/100.
Where each one leads
Flatpay
- headcount: 1,362 against 55
- LinkedIn following: 22,023 against 380
Square
- our overall score: 67/100 against 30/100
- domain rating: 93/100 against 67/100
At a glance
| Measure | Flatpay | Square |
|---|---|---|
| What it is | Flatpay provides affordable payment solutions for businesses with a focus on simple, predictable flat rates and daily payouts. | An all-in-one financial services platform providing point-of-sale systems, payment processing, and business management tools. |
| Category | Fintech, Payments, Digital Payments, Embedded Finance | Fintech, Payments, Fintech & Payments, Digital Payments |
| Sells toBusiness model | B2B | B2B |
| Offering | Software | Platform |
| Founded | Not published | 2009 |
| Headquarters | Helsinki, Finland | San Francisco, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Flatpay | Square |
|---|---|---|
| Employees | 1,362 | 55 |
| Headcount growthLast 12 months | +103.0% | Not published |
| Total funding | Not published | $10.0M |
| Latest round | Not published | Series A |
| Valuation | Not published | $30.0M |
| LinkedIn followers | 22,023 | 380 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Flatpay | Square |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 30/100 | 67/100 |
| Traction | 20/100 | 52/100 |
| Team | 30/100 | 60/100 |
| Community | Not published | 8/100 |
| Search visibility | 42/100 | 44/100 |
| Quality | Not published | 78/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (53/100) | D (56/100) |
| Domain ratingLink authority, 0-100 | 67/100 | 93/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Flatpay | Square |
|---|---|---|
| CDN | Cloudflare | Cloudflare |
| CMS | Webflow | Not detected |
| Frameworks | Jquery | Tailwind CSS |
| Payments | Not detected | Square |
What users say
| Measure | Flatpay | Square |
|---|---|---|
| Reddit sentimentThreads we track | 1 positive, 4 negative across 5 threads | 0 positive, 2 negative across 3 threads |
“Jeg har udviklet en løsning, hvor man kan booke og forudbetale en serviceydelse. Det kører via Flatpay/Fribsii. Under checkout vælger man kort, mobilepay etc. Alt er godt.”r/dkudvikler
“After two years of processing payments, with zero notice, and zero reason given Square closed our account Saturday in the middle of the day. I wish I could say we are alone, so many folks have posted on the BBB that this makes me think that”r/smallbusiness
Flatpay vs Square: common questions
Which is better, Flatpay or Square?
On our 0-100 score Square rates higher (67/100 against 30/100). The score weights traction, team, visibility and profile completeness, so it reflects company strength rather than which product suits you. We compare the two on 17 data points above: read the rows that match what you are buying for.
How do Flatpay and Square compare on the numbers?
Flatpay leads on headcount (1,362 against 55), LinkedIn following (22,023 against 380). Square leads on our overall score (67/100 against 30/100), domain rating (93/100 against 67/100).
What do real users say about Flatpay and Square?
Flatpay: 1 positive and 4 negative mentions across 5 Reddit threads we track, mostly in r/dkudvikler. Square: 0 positive and 2 negative mentions across 3 Reddit threads we track, mostly in r/smallbusiness.
Read the full Flatpay review and pricing or the Square review and pricing. You can also browse other Flatpay alternatives we track.

