Annual vs monthly: how much does a 12-month prepay save?
Several MVNOs (Mint Mobile, Tello, US Mobile) sell plans on a 12-month upfront prepayment at a per-month discount. Plug in the monthly price and the annual upfront price; we compute the per-month effective rate, monthly savings, and 12-month total saved.
Real-world examples
Plug these in to see the math:
| Plan | Monthly | Annual upfront | Effective/mo | You save |
|---|---|---|---|---|
| Mint Mobile Unlimited | $45 | $360 | $30.00 | $180/yr |
| Mint Mobile 15GB | $30 | $240 | $20.00 | $120/yr |
| Tello Unlimited (annual) | $25 | $240 | $20.00 | $60/yr |
The "unlimited" tier discount is biggest in absolute dollars; the lower tiers are biggest as a percentage. Read the carrier’s annual terms before committing — cancellation rules vary.
Related tools
- Data usage calculator — estimate your monthly GB before picking a tier
- Cheapest plans — under $25/month options
- Guide: Auto-pay discounts — the other lever for cutting your bill
- Mint Mobile · Tello · US Mobile