Back in the day, unlimited texting was a huge deal and came with an add-on price tag of around $20 a month. Now, unlimited talk and text are bundled into most mobile plans — but ‘unlimited’ doesn't always mean what you think it does. If you're always connected to Wi-Fi, a free messaging app like WhatsApp sidesteps these restrictions entirely.
Thanks to attributes like end-to-end encryption, video-calling, and large group capacity, WhatsApp is widely used by students, corporations, and medical facilities alike. My doctor even uses WhatsApp for follow-up consultations. SMS simply can't match it for sensitive or high-volume communication.
For those of us without medical degrees, texting has additional limitations:
- Blocked texts: In an attempt to thwart scammers, carriers may block your communications if you’re a high-volume texter (think over 100 an hour). This is likely to happen if you send tons of texts to large groups.
- Shortened messages: Some unlimited plans have undisclosed restrictions on the number of characters per message you can use. This can also affect your use of multimedia.
- Group chat size caps: Caps can include limits on the number of green-bubble (Android) users, or blue-bubble (iMessage) users you can communicate with in group chats simultaneously. WhatsApp's group cap of 1,024–2,000 makes this gap pretty significant for high-volume group texters.
- International text restrictions: You may find out the hard way that your roaming charges apply to texting overseas. Unless your contract specifies otherwise, unlimited texting applies only to domestic usage.
Carriers know that porting phone numbers is nerve-wracking. Concerns about glitches and the amount of time porting takes can lock users into staying with a carrier they’ve outgrown. The porting process can also be stressful, since it requires a port-out PIN or passcode from your current provider.
I’ve had the same phone number since forever — it’s my digital ID for credit card companies, banks, and two-factor authentication.
With WhatsApp, your phone number becomes less important. Your contact list, groups, and chats will remain housed within the app, even if you archive them. If you’ve ever lost a photo-laden text chain, as I have, you’ll appreciate that messages on WhatsApp remain there indefinitely.
There’s no such thing as a free phone. It’s simply more palatable to increase your monthly bill by a few bucks than to shell out $1,000 or more for the latest model. Of course, that locks you into your current mobile plan for years, until the phone is paid off. And by then, you’re ready to move on to an even newer phone.
The "unlimited talk and text" selling point is a lot less compelling when WhatsApp handles calls, texts, and video over Wi-Fi or data for free.
If you buy your phone outright and pair it with a budget-friendly data plan from an MVNO like Tello, you'll come out ahead by hundreds of dollars over time, and you won't need a premium carrier plan to stay connected.
One of the biggest differences between WhatsApp and texting is their power source. Unlike SMS, which routes through your carrier's network, WhatsApp runs over any internet connection — Wi-Fi or mobile data — which means your carrier isn't in the loop at all. If you use instant-messaging apps extensively, you may be ready to ditch your current mobile carrier and move over to a lower-cost MVNO.
MVNOs are powered on the same cellular networks used by the Big Three — T-Mobile, Verizon, and AT&T. They provide 4G LTE and 5G coverage, but at a lower price.
Keep in mind that WhatsApp requires everyone to have the app on their phone, so your contact list may make this budget-happy hack a no-go for you.
The bottom line: the less you rely on your carrier for calls, texts, and data, the more freedom you have to find a plan that actually fits your budget.
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