Payment Processors · reliability comparison
Mollie vs SumUp: which is more reliable? (2026)
SumUp is more reliable than Mollie, scoring 54.2 vs 47.2 out of 100. Over the last 90 days Mollie reported 25 incidents and SumUp reported 5, with effective uptime of 98.29% and 98.98% respectively. Mollie resolves incidents faster on average (3h 24m).
Data updated Nov 1, 2026 · How we score
| Metric | Mollie | SumUp |
|---|---|---|
| Reliability score | 47.2 | 54.2 |
| Rank (payment processors) | #10 | #7 |
| Uptime (90 days) | 98.29% | 98.98% |
| Incidents (90 days) | 25 | 5 |
| Partial / major outages | 13 | 1 |
| Avg time to resolve | 3h 24m | 19h 59m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Mollie and SumUp differ
- Mollie reported 5× as many incidents as SumUp over the last 90 days (25 vs 5).
- Mollie had 13 partial or major outages, compared with 1 for SumUp.
- Mollie fixes problems faster: 3h 24m on average, against 19h 59m for SumUp (5.9× quicker).
- Mollie's longest outage on record lasted 2d 10h (Sep 4, 2026); SumUp's lasted 3h 2m (Jun 27, 2026).
90-day uptime
Mollie
SumUp
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Mollie incidents
- MaintenanceNov 3, 2026 · ongoing
- Degraded performanceOct 29, 2026 · resolved in 6m
- MaintenanceOct 24, 2026 · resolved in 8h
- MaintenanceOct 24, 2026 · resolved in 4h
- Partial outageOct 22, 2026 · resolved in 1h 27m
- Partial outageOct 20, 2026 · resolved in 23m
Recent SumUp incidents
- Degraded performanceOct 29, 2026 · ongoing
- MaintenanceOct 9, 2026 · ongoing
SEPA instant payments will be delayed due to a scheduled maintenance
Affected: Business Account (EU)
- Degraded performanceSep 5, 2026 · resolved in 7h 6m
Multi-Device-Sync and Kitchen Display System (KDS) are not receiving orders
Affected: Kitchen Display System (KDS), Ordering & Floor Plan
- Degraded performanceSep 3, 2026 · resolved in 6d 2h
Touchscreen not responding on POS devices
Affected: SumUp POS, POS Pro
- Degraded performanceAug 17, 2026 · resolved in 10m
Issue with Logins and Payments Acceptance
Affected: Card Readers: Top & Top NFC, Card Readers: Total, On & Super, Refunds, Solo Cloud API, Payouts, Card Readers: Solo +7 more
- MaintenanceAug 15, 2026 · ongoing
Transactions processing delay in UK
Affected: Business Account (EU)