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CarrierMath

We do the 36-month family-plan math — multi-line discounts, trade-in credits, and the resale-vs-trade-in gap — that carriers hope you won't do.

Your household

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Plan for this line
Plan for this line

Household settings

$/mo

Results

Sorted by: Worst case
Cheapest

Cricket Wireless

Supreme Unlimited · Buy unlocked + resell

Estimate
$9,408over 36 months

$130.00/mo

Costs $5,088 more than your current bill over 36 months

Dad$32.50/mo

Plan $32.50/mo + $2,634.00 upfront − $305.00 resale

Sales tax on the device (varies by state, typically charged upfront on full MSRP) is not included in the totals above.

Cricket Wireless's per-line activation fee isn't confirmed — shown here as $35.00 (worst case, based on the highest verified activation fee in this dataset); best case assumes $0.

Mom$32.50/mo

Plan $32.50/mo + $2,634.00 upfront − $305.00 resale

Sales tax on the device (varies by state, typically charged upfront on full MSRP) is not included in the totals above.

Cricket Wireless's per-line activation fee isn't confirmed — shown here as $35.00 (worst case, based on the highest verified activation fee in this dataset); best case assumes $0.

Me$32.50/mo

Plan $32.50/mo + $35.00 upfront

Cricket Wireless's per-line activation fee isn't confirmed — shown here as $35.00 (worst case, based on the highest verified activation fee in this dataset); best case assumes $0.

Sister$32.50/mo

Plan $32.50/mo + $35.00 upfront

Cricket Wireless's per-line activation fee isn't confirmed — shown here as $35.00 (worst case, based on the highest verified activation fee in this dataset); best case assumes $0.

Fine print (4)
  • Prices include a $5/line autopay discount that starts in month 2 — the first month costs $5/line more.
  • Video streams are capped at 480p on all plans.
  • All lines on the account must be on the same plan.
  • + taxes & fees on the plan (typically $5–15/line), not included in the totals above.

Boost Mobile

Unlimited Premium · Buy unlocked + resell

Estimate
$10,488over 36 months

$160.00/mo

Costs $6,168 more than your current bill over 36 months

US Mobile

Unlimited Premium · Buy unlocked + resell

Estimate
$11,064over 36 months

$176.00/mo

Costs $6,744 more than your current bill over 36 months

Visible

Visible+ Pro · Buy unlocked + resell

$11,068over 36 months

$180.00/mo

Costs $6,748 more than your current bill over 36 months

AT&T

Premium 2.0 · Buy unlocked + resell

$11,256over 36 months

$181.32/mo

Costs $6,936 more than your current bill over 36 months

AT&T

Premium 2.0 · Financed w/ trade-in

EstimateTrade-in credit not yet locked in

AT&T's iPhone Duo trade-in promo hasn't been announced yet (pre-orders open 2026-10-16) — figures below are a pattern-based estimate.

$270$326/mo

$9,866$11,865 over 36 months

Resolves once AT&T officially announces the trade-in promo and your trade-in is appraised.

Costs $5,546–$7,545 more than your current bill over 36 months

T-Mobile

Experience Beyond · Buy unlocked + resell

Estimate
$12,468over 36 months

$215.00/mo

Costs $8,148 more than your current bill over 36 months

Verizon

Unlimited Ultimate · Buy unlocked + resell

Estimate
$12,648over 36 months

$220.00/mo

Costs $8,328 more than your current bill over 36 months

T-Mobile

Experience Beyond · Financed w/ trade-in

Estimate

T-Mobile's iPhone Duo trade-in promo hasn't been announced yet (pre-orders open 2026-10-16) — figures below are a pattern-based estimate.

$13,078over 36 months

$431.58/mo

Costs $8,758 more than your current bill over 36 months

Verizon

Unlimited Ultimate · Financed w/ trade-in

EstimateTrade-in credit not yet locked in

Verizon's iPhone Duo trade-in promo hasn't been announced yet (pre-orders open 2026-10-16) — figures below are a pattern-based estimate.

$309$364/mo

$11,258$13,258 over 36 months

Resolves once Verizon officially announces the trade-in promo.

Costs $6,938–$8,938 more than your current bill over 36 months

Email me when any of these promos change