In an attempt to lure customers from other carriers, Sprint has announced a new unlimited plan for just $15 a month.

Sprint Offering Unlimited Plan For $15 A Month

On Thursday, June 7, Sprint announced a new time-limited "Unlimited Kickstart" plan that costs merely $15 a month. The deal, which goes live on Friday, June 8, includes unlimited talk time, text messages, and 4G LTE data.

The offer will only be available online or by phone, which means that consumers will not be able to avail the offer by walking in to their local Sprint store.

Sprint's $15 pricing makes it the cheapest unlimited plan available on the market, giving even the low-cost prepaid carriers some serious competition.

Although no expiry date or deadline has been specified for the promotion, Allan Samson, senior vice president of acquisition for Sprint, told CNET that it would only "last weeks, not months."

This isn't the first time Sprint, America's fourth-largest wireless carrier, has aggressively attempted to try and attract customers with a vanilla deal. Last year, the company offered Verizon users a free year of unlimited data if they switched to Sprint.

The Unlimited Kickstart plan is a similar bid by Sprint to entice customers ahead of its proposed merger with T-Mobile later this year.

What's The Catch?

While the plan offers unlimited calls, texts, and data, it does not include a mobile hotspot feature for tethering several devices.

The offer also restricts video streaming to a low 480p, so users won't be able to stream their favorite Netflix series in high definition. The plan also limits music streaming to 500 kbps, gaming streams to 2 Mbps, and the company also holds the right to reduce the data speed of heavy users if the network is congested.

Another big caveat is that this special offer is only available to customers who are willing to port a number from another carrier. This means that one cannot just start a new line of service — a huge commitment Sprint is asking users to make.

Furthermore, the $15 rate does not include taxes and other fees, so the final figure is going to slightly higher than quoted but still within the affordable range.

Therefore, If consumers are looking to purchase an inexpensive unlimited phone plan and willing to switch over from their current carriers to get it, Sprint's latest unlimited plan might be the best option for them.