Three Ireland is Ireland's largest mobile operator with 3.9 million customers. It offers competitive pricing and strong mobile coverage. Reviews are polarised: Three scores poorly on Trustpilot, while the My3 app rates well on both Google Play and the Apple App Store. Common complaints on open review sites include rural signal issues and billing queries; satisfied customers praise helpful in-store staff and the app experience.

Positive reviews praise competitive pricing, good rural coverage for some customers, and helpful in-store staff. Negative reviews frequently mention signal problems outside urban areas, billing issues, service outages, and difficulties reaching customer service. Reviews are strongly polarised — a pattern typical of unsolicited review platforms.

Pros include international marketplace experience, strong mobile coverage across Ireland, competitive pricing, and reliable speeds for mobile and broadband. Cons include signal problems in rural areas, billing issues, connection outages, and difficulties with customer service.

Three excels in mobile broadband and competitive pricing but performs poorly on review platforms. For a full comparison, visit our broadband providers guide or consider alternatives like Eir, Virgin Media, or Sky.