Moneris
Depends
Confidence: Medium
Choose Moneris if you're an established Canadian merchant wanting one vendor for terminals, POS, and online payments with Interac.
New check
Comparison
Moneris vs Square
Moneris and Square both land on Depends.
Square
Depends
Confidence: Medium
Buy if you're a small or new seller who wants a free, easy POS and can tolerate flat fees and occasional account reviews.
| Compare | Moneris | Square |
|---|---|---|
| Verdict | Depends | Depends |
| Best for | Established Canadian retailers | Pop-ups, markets, and mobile vendors |
| Who it's not for | Low-volume sellers . monthly fees eat thin margins | High-volume merchants . flat-rate fees erode margin |
| Privacy | PCI DSS-compliant; contained a November 2023 ransomware attempt; one 2011 CVE in legacy eSelect Plus API.12 | Payments encrypt card data, but parent company Block's Cash App breach exposed 8M users and Square-linked WordPress plugin CVEs exist. |
| Support quality | Complaint-heavy reviews; formal complaint-resolution channel exists. | Reviews report difficulty reaching support |
| Public sentiment | Merchants credit reliable terminals and scale but routinely gripe about monthly fees, contracts, and billing practices.⁶ | Sentiment is polarized: G2 users consistently praise Square while r/smallbusiness threads brand it the worst, citing holds, fees, and support.16 |
| Biggest gotcha | Monthly account fees plus passed-through card-network surcharges . model total cost before signing | Account reviews can hold your funds for days before you can process |
Pick Moneris when
- Established Canadian retailers
- Omnichannel stores (POS + online)
- Restaurants (Moneris Go)
- High-volume merchants needing Interac
When Moneris is not a fit
- Low-volume sellers . monthly fees eat thin margins
- US-only businesses . Moneris serves Canadian merchants
- Startups wanting transparent flat-rate pricing
- Merchants avoiding multi-year contracts
Pick Square when
- Pop-ups, markets, and mobile vendors
- Small retail and cafés starting out
- Sellers wanting in-person plus online in one system
- Anyone wanting a free POS with no monthly fee
When Square is not a fit
- High-volume merchants . flat-rate fees erode margin
- Businesses that can't tolerate sudden fund holds
- Full-service restaurants . use Toast instead
- Teams needing reliable, reachable support
Sources
- Moneris Online Payment Fees / Pricingmoneris.comofficial
- Moneris PCI Data Securitymoneris.comofficial
official
- Moneris Developer API Docsdeveloper.moneris.comofficial
review
- Moneris Trustpilot Reviews (Canada)ca.trustpilot.comreview
- Moneris Go vs Square (Canada) . Redditreddit.comreview
- Moneris Review for Payment Processing . Clearly Paymentsclearlypayments.comreview
review
- Moneris Customer References . FeaturedCustomersfeaturedcustomers.comreview
- Moneris ransomware attack prevented . The Recordtherecord.mediasecurity
- CVE-2011-5236 . NVDnvd.nist.govsecurity
- RBC and BMO to sell Moneris for ~C$2B . Morningstarglobal.morningstar.comnews
news
- Square US Reviews | Trustpilottrustpilot.comreview
review