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O2 alternatives: 3 apps ranked by verified data

Facts checked Nov 8, 2026AppBreakup editorialHow we rankAll mobile carrier apps

Top picks

  • EE logo

    Best overall

    EE

    Multi-Line Discount: Up to £10 off

Common reasons people leave O2: EU roaming fair use caps at 25GB, and contract prices rise by a fixed amount each April. We ranked 3 alternatives by how directly each one replaces O2, then by reviews, real visits and how recently each app's facts were checked against its own website. EE currently ranks first.

Quick comparison

#AppPricingVerified priceOpen sourcePlatformsVerified factsScore
1EE logoEEPaidUp to £10 offNoWeb, iOS, Android4 of 468.8
2Vodafone UK logoVodafone UKPaid£2.50/month each April (airtime plans)NoWeb, iOS, Android5 of 564.8
3giffgaff logogiffgaffPaid—NoWeb, iOS, Android3 of 361.8
  1. EE logo

    1. EETop pick

    Best for: UK users who want a big 5G network with streaming extras and broadband bundles

    PaidWeb, iOS, Android

    68.8

    score / 100

    Why switch from O2

    Strong coverage with streaming Inclusive Extras like Apple Music or Netflix built into plans.

    Pros

    • Choice of 24-month or 30-day rolling SIM-only plans
    • Inclusive Extras like Apple Music, Netflix or TNT Sports
    • Multi-Line Discount for families and extra devices
    • Broadband and TV bundles through EE One

    Cons

    • Fixed price rises every 31 March on contracts
    • Usually costs more than budget networks and MVNOs
    • Unlimited plans have a 600GB fair-use limit
    Visit EE Details and reviews
    How this score is calculated
    Editorial fit ×0.3100
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is EE a good O2 alternative?

    Verified facts

    4 of 4 verified
    Contract options
    24 months or 30-day rolling
    Checked Nov 8, 2026ee.co.uk(opens source in a new tab)
    Inclusive Extras
    Apple Music, Google AI, Netflix, TNT Sports
    Checked Nov 8, 2026ee.co.uk(opens source in a new tab)
    Multi-Line Discount
    Up to £10 off
    Checked Nov 8, 2026ee.co.uk(opens source in a new tab)
    Unlimited fair use
    May slow above 600GB/month
    Checked Nov 8, 2026ee.co.uk(opens source in a new tab)
  2. Vodafone UK logo

    2. Vodafone UK

    Best for: UK users who travel in Europe and want roaming, broadband and phone plans from one network

    PaidWeb, iOS, Android

    64.8

    score / 100

    Why switch from O2

    Zone A roaming on all pay monthly plans and a lifetime warranty on phone faults.

    Pros

    • Zone A roaming included on all pay monthly plans
    • Separate device and airtime plans, so you can pay off a phone early
    • Lifetime warranty on manufacturer defects for ongoing customers
    • Broadband, TV and smartwatch plans alongside mobile

    Cons

    • Fixed price rise every April on monthly plans
    • Out-of-bundle charges rise each year by CPI plus 3.9%
    • Pay as you go roaming outside Zone A needs paid extras
    Visit Vodafone UK Details and reviews
    How this score is calculated
    Editorial fit ×0.387
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Vodafone UK a good O2 alternative?

    Verified facts

    5 of 5 verified
    Owner
    VodafoneThree (Vodafone and Three UK merger)
    Checked Nov 8, 2026vodafone.co.uk(opens source in a new tab)
    EU roaming
    Zone A included on pay monthly
    Checked Nov 8, 2026vodafone.co.uk(opens source in a new tab)
    Annual price rise
    £2.50/month each April (airtime plans)
    Checked Nov 8, 2026vodafone.co.uk(opens source in a new tab)
    Device warranty
    Lifetime Service Promise
    Checked Nov 8, 2026vodafone.co.uk(opens source in a new tab)
    5G
    5G+ (standalone)
    Checked Nov 8, 2026vodafone.co.uk(opens source in a new tab)
  3. giffgaff logo

    3. giffgaff

    Best for: UK users who want cheap rolling SIM-only plans on O2's coverage without a contract

    PaidWeb, iOS, Android

    61.8

    score / 100

    Why switch from O2

    Runs on the O2 network, so same coverage on cheaper rolling monthly SIM-only plans.

    Pros

    • Rolling monthly plans you can change or cancel anytime
    • Uses O2's national network coverage
    • Pay-as-you-go option alongside monthly plans

    Cons

    • Support is mainly online and community-based, with limited phone help
    • Coverage depends entirely on O2's network
    • Fewer bundled extras than the main UK networks
    Visit giffgaff Details and reviews
    How this score is calculated
    Editorial fit ×0.377
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is giffgaff a good O2 alternative?

    Verified facts

    3 of 3 verified
    Network
    O2
    Checked Nov 8, 2026giffgaff.com(opens source in a new tab)
    Broadband
    Yes, on Virgin Media's network
    Checked Nov 8, 2026giffgaff.com(opens source in a new tab)
    Phone finance
    Via Klarna
    Checked Nov 8, 2026giffgaff.com(opens source in a new tab)

The best O2 alternative for…

The highest-ranked app in this list for each need.

EE logo

Best O2 alternative for most people

EE

Strong coverage with streaming Inclusive Extras like Apple Music or Netflix built into plans.

Vodafone UK logo

Best O2 alternative for iPhone and Android

Vodafone UK

Zone A roaming on all pay monthly plans and a lifetime warranty on phone faults.

giffgaff logo

Best O2 alternative for working in the browser

giffgaff

Runs on the O2 network, so same coverage on cheaper rolling monthly SIM-only plans.

O2 alternatives: common questions

What is the best alternative to O2?

EE ranks first right now. Strong coverage with streaming Inclusive Extras like Apple Music or Netflix built into plans. Vodafone UK and giffgaff follow it in our ranking.

O2 vs EE: what's the difference?

Both O2 and EE are paid products. Verified prices: O2 £18 a month (75GB, 24 months), EE Up to £10 off. Both run on Web, iOS and Android.

Is O2 free?

O2 is a paid product. Rolling plans: Yes, no contract; Classic plan: £18 a month (75GB, 24 months); Unlimited Plus plan: £19.99 a month (24 months). Checked on O2's own site, November 2026.

How much do O2 alternatives cost?

Verified prices for the top-ranked O2 alternatives: EE, Up to £10 off; Vodafone UK, £2.50/month each April (airtime plans). Each price was checked on the app's own site; see each card below for the date and source.

Is there a free alternative to O2?

None of the 3 alternatives we track has a free plan; all are paid, though some offer trials.

Is there an open-source alternative to O2?

None of the 3 alternatives in this list is open source.

Why do people switch from O2?

The complaints we hear most: EU roaming fair use caps at 25GB; contract prices rise by a fixed amount each April; best perks are aimed at gig-goers rather than general savings.

How is this list ranked?

Every app is scored with the same published formula: how directly it replaces O2, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.