Mobile app payments are digital payments made inside a smartphone app to start, manage, and pay for services—most commonly EV charging sessions in the e-mobility context. The app handles user authentication, payment method storage, session authorization, and receipt delivery through an integrated payment service provider (PSP).
How mobile app payments work in EV charging
A typical payment journey looks like this:
– Driver finds a charger in the app (map, location ID, QR code, or NFC)
– The app authenticates the user account and checks payment readiness
– The operator’s back office (CPMS) authorizes the charger and initiates the session via OCPP
– Pricing is shown (per kWh, per minute, fixed fee, or hybrid tariff)
– Payment is captured at session end or pre-authorized upfront
– A digital receipt and session data (kWh, duration, cost) appear in the app
Payment methods commonly supported
Depending on region and PSP, apps may support:
– Credit/debit cards (stored card tokens)
– Apple Pay / Google Pay (where enabled)
– Prepaid wallet or account balance
– Subscriptions and membership discounts
– Vouchers, promo codes, or partner benefits
Benefits of mobile app payments
Mobile app payments can improve convenience and commercial performance:
– Quick onboarding for repeat users and easy session history tracking
– Flexible pricing tools: time-of-use rates, discounts, and idle fees
– Lower hardware requirements compared with installing on-charger payment terminals
– Better customer communication: push notifications, receipts, support flows
– Data-driven optimization via utilization and revenue analytics
Key requirements for reliable app payment experience
For operators, reliability depends on:
– Strong connectivity (charger ↔ CPMS) via Ethernet or LTE
– Accurate tariff configuration and transparent price display
– Secure payment processing (tokenization and PSP compliance)
– Clear refund and dispute handling workflows
– Robust session control to prevent failed starts and “stuck” sessions
Limitations and common issues
– Registration friction for first-time users (account creation, verification)
– Weak mobile signal at the charging location can disrupt session start/stop
– Pricing confusion if tariffs are not consistent across signage, app, and roaming apps
– Payment failures due to bank declines, expired cards, or missing pre-authorization
– More support demand compared to contactless ad-hoc payments for casual users
Related glossary terms
Mobile app charging payments
CPMS
OCPP
Tariffs and pricing models
Ad-hoc payment
Contactless payment
RFID authentication
Idle fees
OCPI
Plug & Charge