Imagine a monthly cell bill of exactly $0. That's TextNow's promise — a cloud-based service that grew from a calling app into a full MVNO on T-Mobile's 5G network, with no contract, no credit check, and no monthly bill. But there's no free lunch: the service is ad-funded, and the data model has real limits. Here's the honest breakdown.
How TextNow works
Two ways in: use the app over Wi-Fi with a free number (no SIM at all), or buy the SIM (~$4.99 one-time) to get cellular service on T-Mobile's towers for $0/month. The base "Free Flex" plan covers unlimited talk, text, and "Essential Data" — enough for maps, rideshare, and email — funded by ads inside the app. You can also call and text from tablets and computers, which apps like WhatsApp can't match.
Data passes when you need speed
- Free Flex — $0: essential data only; maps, Uber, email, unlimited talk/text.
- Hour Pass — $0.99: 1GB for a quick heavy-data errand.
- Day Pass — $2.99: 2GB for a travel day.
- Monthly Pass — $35.99: 20GB for full-time primary-phone use, with Canada/Mexico roaming.
The add-ons worth knowing
Ad-Free Lite ($1.99/mo) trims ads to a small banner; Ad-Free+ ($9.99/mo) removes them entirely. The sleeper: Lock-In Number ($4.99/yr) — without it, an unused number can be reassigned, which matters if banks and 2FA codes point at it. US and Canada calling is always free; international calls run on credits you can earn by watching ads.
Pros and cons
Pros: genuinely free calling and texting on a Big 3 network, pay-only-when-needed data passes, painless signup, broad T-Mobile coverage. Cons: the ads (that's the price), only two real data sizes, no video calling since 2022, and standard MVNO deprioritization plus fair-use throttling. Wi-Fi-first users will barely feel the limits; heavy cellular users will.
Verdict
TextNow is the best $0 phone bill available: a backup line, a kid's first phone, or a full plan for someone who lives on Wi-Fi. If you need consistent high-speed cellular data, a paid MVNO like Mint ($15) or Visible ($25) is the better primary line — but as free goes, nothing else touches it.
See every T-Mobile-network carrier ranked — from TextNow's $0 up through Mint and Metro.
Best T-Mobile MVNOs →
Jean Gilles has researched personal finance, consumer technology, and wireless pricing for over a decade. He founded ShopCellPlans in 2019 and writes every review on the site.
Frequently asked questions
How is TextNow free? +
What network does TextNow use? +
Can TextNow be my main phone? +
Will I lose my TextNow number? +
One email when a carrier raises rates, drops a plan, or launches a deal worth switching for. No spam, unsubscribe anytime.