STi Mobile offers a rather unique approach to prepaid cell phone service plans. First, there are two rather economical daily usage plans. The first costs a mere $.09 daily plus $.089 per minute used. The second is $.25 per day but the cost per minute is lowered to $.079. So which plan is better? Not surprisingly, it depends on how much time you use in a typical day. At sixteen minutes per day, the plans’ costs are identical. For the very light user who uses fifteen minutes of airtime daily or less, there’s a small advantage to choosing the $.09 per day plus $.089 per minute option. If you use more that fifteen minutes daily, opt for the $.25 per day plan.

If most of your calling is done at night or on weekends there are a couple of other options that could be attractive. The Xtra Talk 9PM plan costs $24.99 per month and offers unlimited talk on weekends and evenings beginning at 9:00PM. On this plan, calling outside of the night and weekend parameters costs $.15 a minute. The Xtra Talk 7PM plan runs $29.99 monthly but the night period begins earlier at 7:00PM and the per minute cost is lowered to $.15.

STi Mobile’s selection of phones is limited to three pretty basic devices that range in cost from $36.99-$59.99. The good news is that each comes complete with $20 of airtime.

STi Mobile is one of a very few prepaid wireless providers which offers the push-to-talk or walkie-talkie capability. The prices for text messaging and mobile web are lower than most other prepaid providers but some expected features such as CallerID and call waiting are absent.

For reviews of our best rated prepaid cell phone providers, take a look at the reviews of Boost Mobile, Cricket and Virgin Mobile.