MoneySavingPro’s free tools show you exactly how much you’re overpaying on your phone bill, which carrier has coverage in your area, and whether your current phone works on cheaper networks — no sign-up, no account, no personal data required.
Key facts:
- All 8 tools are completely free — no account required
- Most people switching from a Big Three carrier save $300–$600/year
- Coverage checker shows which network your current or target MVNO runs on
- IMEI checker confirms your phone works before you switch
- Data calculator helps you stop paying for unlimited you don’t use
The carriers built their business model around the information gap — confusing plan structures, hidden fees, bills designed to obscure what you’re actually paying. Every tool on this page is a direct response to a specific tactic.
Phone Plan Savings Calculator
See exactly how much you could save — down to the dollar
Enter your current carrier. See side-by-side what you’d pay on the same network for less. Most people are surprised by the gap.
Carriers make their pricing hard to compare on purpose. We did the math for you.
Calculate my savings →Free — no account required
Phone Plan Comparison
Compare 40+ carriers by price, data, network, and terms — in one view
Filter by how much data you need, which network you want, and your budget. No carrier advertising, no paid placement.
Every carrier says they’re the cheapest. This tool shows you who actually is.
Compare plans →Free — no account required
Coverage Map Checker
Check real coverage at your home, work, and regular routes
Compare T-Mobile, AT&T, and Verizon 4G LTE & 5G coverage by ZIP code. Then find cheaper plans that run on the same towers.
MVNOs are contractually prevented from telling you which network they run on. We built the map that shows you.
Check my coverage →Free — no account required
Carrier Feature Comparison
Compare any two carriers side-by-side on what actually matters
Hotspot data, international calling, contract terms, customer ratings, network quality. Pick two carriers — see who wins.
Carrier advertising makes every plan sound identical. The details tell a different story.
Compare carriers →Free — no account required
Data Usage Calculator
Find out how much data you actually use — and stop overpaying for unlimited
Answer a few questions about your streaming, social media, and video call habits. We’ll tell you your real monthly GB requirement.
The big carriers want you to believe you need unlimited data. Most people use under 10GB/mo.
Calculate my data →Free — no account required
Phone Compatibility Checker
Find out which carriers your existing phone supports
Enter your phone’s IMEI number and check which carriers it’s compatible with. Switch carrier without replacing your phone.
Most phones are compatible with multiple carriers. You don’t need a new phone to save money.
Check compatibility →Free — no account required
Cell Phone Price Comparison
Find the lowest price for your target phone across 40+ carriers
Filter by brand, storage size, and price. Compare phone deals from MVNOs alongside the Big 3 — often significantly cheaper.
Carrier-direct pricing isn’t always the best deal. MVNO phone prices are often lower for the same device.
Compare phone prices →Free — no account required
Phone Specs Comparison
Compare specs of up to 3 phones side-by-side before you buy
Camera resolution, battery life, processor, display size, 5G compatibility. Pick up to 3 phones and compare what matters to you.
Manufacturer spec pages are designed to impress, not to help you compare. We do the comparison for you.
Compare phones →Free — no account required
Common questions
How much could I save by switching carriers?
Most people switching from a Big Three carrier (T-Mobile, AT&T, or Verizon) to an MVNO on the same network save between $300 and $600 per year. Use the Plan Savings Calculator to see your specific savings based on your current carrier and plan.
Do these tools require creating an account?
No. All MoneySavingPro tools are completely free and require no account, email address, or personal data. Open the tool and use it.
How do I know which carrier has coverage where I live?
Use the Coverage Map Checker. Enter your ZIP code and compare T-Mobile, AT&T, and Verizon 4G LTE and 5G coverage maps side-by-side. The tool then shows you cheaper carriers running on whichever network has the best coverage in your area.
My phone is paid off — can I switch without buying a new one?
In most cases, yes. Use the Phone Compatibility Checker. Enter your phone's IMEI number (dial *#06# to find it) and check which carriers support your device. Most unlocked smartphones are compatible with multiple carriers.
Do I actually need unlimited data?
Probably not. The average American uses between 5 and 10GB of cellular data per month. Use the Data Usage Calculator to estimate your real monthly usage based on your streaming, browsing, and video call habits — then choose a plan that fits instead of paying for unlimited you don't use.
How does MoneySavingPro make money from these tools?
MoneySavingPro earns affiliate commission if you click through to a carrier and sign up. The tools themselves are completely free and the results are not influenced by commission rates. Carriers with higher commissions do not rank higher in our comparison results.
Not sure where to start?
If you’re on a contract with T-Mobile, AT&T, or Verizon and haven’t compared your bill in the last year, start with the savings calculator. It takes 60 seconds and shows you exactly what you’d pay on the same towers for less.
Calculate my savings →