Payment Processors · reliability comparison
Adyen vs Shift4 Payments: which is more reliable? (2026)
Adyen is more reliable than Shift4 Payments, scoring 84.8 vs 57.8 out of 100. Over the last 90 days Adyen reported 10 incidents and Shift4 Payments reported 5, with effective uptime of 99.95% and 99.36% respectively. Adyen resolves incidents faster on average (7h 14m).
Data updated Nov 1, 2026 · How we score
| Metric | Adyen | Shift4 Payments |
|---|---|---|
| Reliability score | 84.8 | 57.8 |
| Rank (payment processors) | #6 | #8 |
| Uptime (90 days) | 99.95% | 99.36% |
| Incidents (90 days) | 10 | 5 |
| Partial / major outages | 0 | 2 |
| Avg time to resolve | 7h 14m | 19h 29m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Adyen and Shift4 Payments differ
- Adyen reported 2× as many incidents as Shift4 Payments over the last 90 days (10 vs 5).
- Shift4 Payments had 2 partial or major outages, compared with 0 for Adyen.
- Adyen fixes problems faster: 7h 14m on average, against 19h 29m for Shift4 Payments (2.7× quicker).
- Adyen's longest incident on record lasted 3d (Jul 31, 2026); Shift4 Payments's lasted 3h 24m (Aug 24, 2026).
90-day uptime
Adyen
Shift4 Payments
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Adyen incidents
- InformationalNov 1, 2026 · ongoing
Givex is experiencing higher error rates
Affected: Acquirer payments performance
- InformationalOct 31, 2026 · resolved in 15h 34m
Givex is experiencing higher error rates
Affected: Acquirer payments performance
- InformationalOct 31, 2026 · resolved in 36m
MoMo is experiencing higher error rates
Affected: Acquirer payments performance
- InformationalOct 31, 2026 · resolved in 3h 58m
AntFinancialOSP is experiencing offer conversion issues
Affected: Acquirer payments performance
- InformationalSep 30, 2026 · resolved in 2d 5h
Payout delay for a subset of BRL transactions
Affected: Settlement payout
- InformationalSep 30, 2026 · resolved in 12m
MB WAY is experiencing higher refusal rates
Affected: Acquirer payments performance
Recent Shift4 Payments incidents
- Degraded performanceOct 22, 2026 · resolved in 7d 4h
Affected: Merchant Funding USA, Card Processing
- Degraded performanceOct 22, 2026 · resolved in 1h 29m
Timeouts for US processing 10/22/26
Affected: TSYS, Shift4 Dine POS - US, eCommerce, Shift4 One, Shift4 Venue Payments (US)
- InformationalSep 11, 2026 · resolved in 53m
Affected: Shift4 Dine POS - US, Shift4 Dine POS - Canada, Shift4 Dine POS - UK/EU, Shift4 Dine Mobile, Shift4 Dine Online Ordering, Shift4 Dine Kiosk
- Major outageSep 10, 2026 · resolved in 1h 1m
Eigen Processing Disruptionofficial update ↗
Affected: Eigen Gateway
- Partial outageAug 24, 2026 · resolved in 3h 24m
Partial Funding Delay - 8-24-2026official update ↗
Affected: Merchant Funding USA