ClassDojo VS Textnow.com

Classdojo.com helped me take control of a class immediately. I was an experienced teacher but I had never taught second grade and didn't have a good class management system. Someone told me about it and the very first day I used it the difference was amazing. 200-400% better behavior. Source: almost 2 years ago

Textnow.com is one example for online texting, and I bet you could use it on public wifi. You can use a virtual phone number (VOIP) without fees from the site. Just hope this can help a little. Source: 10 months ago

Have an independent phone service from others. You can get a SIM card for $5 U.S. (price at time of this writing) an unlocked phone -phone not linked to a phone carrier service - at textnow.com or you can get the free phone app from Google's Play Store or the Apple Store at https://www.textnow.com/downloads. If you have an locked phone (phone tied to a phone carrier service), than you may be able to ask a customer... Source: 11 months ago

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I recently moved to Texas from SF. I have 3 phone numbers with out of state area codes: my cell phone with https://www.h2owireless.com/ (which uses AT&T), a google voice, and a textnow.com phone number. Source: about 1 year ago

There are apps like textnow.com that will give you a free phone number with free texting. You could use that to text her from a different number. If she responds you'll know that your number was blocked on her phone. Source: about 1 year ago