Here are mobile payment / e‑wallet apps and payment platforms that are widely used and considered secure in Sri Lanka, with a short note on each and sources:

• iPay — a rapidly growing Sri Lankan digital payments app / lifestyle platform (bank transfers, bill pay, merchant payments) that reached large transaction volumes in 2024–2025. (ipayglobal.ai)

• FriMi (Nations Trust Bank) — a popular bank‑backed wallet/mobile banking app with merchant acceptance and promotions; marketed for convenience and security. (deposit.lk)

• eZ Cash (Dialog Axiata) — long‑standing mobile‑wallet service from Dialog, widely accepted for merchant and utility payments across Sri Lanka. (economictimes.lk)

• mCash (SLT‑Mobitel) — the mobile money wallet from Mobitel / SLT, used for transfers, bill payments and merchant QR payments. (economictimes.lk)

• UPay / JustPay / Genie (payment apps & QR/aggregator ecosystem) — a group of popular smartphone payment options and QR payment integrations used by merchants and insurance/utility providers (JustPay is a common single‑click payment mode used by several local apps and banks). (economynext.com)

• PayHere and other local payment gateways — used by many Sri Lankan e‑commerce sites to accept cards and local wallets (integrates eZ Cash, mCash, FriMi, Genie, etc.). Useful for online merchant payments. (PayHere.lk.siteindices.com)

• Alipay+ / LANKAQR cross‑border acceptance — LankaPay has enabled Alipay+ acceptance (March 2025), allowing many international e‑wallets to pay at LANKAQR merchants; important if you’re receiving tourists or need cross‑border wallet acceptance. (ffnews.com)

Security notes (general):

• Most major Sri Lankan wallets are bank‑ or telco‑backed and follow KYC/ID checks and PIN/OTP protections; they also integrate with LankaPay’s LANKAQR network for QR payments. For high‑value transactions you’ll typically need stronger KYC. (deposit.lk)
• For best security: keep the app updated, enable any available biometric/2FA options, protect your phone with a PIN, and only install official apps from trusted stores or the provider’s website.

If you want, I can:

• give direct links to each app’s official site or app‑store page (I can fetch the latest links),
• compare fees / merchant acceptance / NFC support for a specific app, or
• suggest which apps are best if you’re a local user, a business accepting payments, or a tourist.