Receiving text messages from an unknown number can be unsettling, especially if those texts are suspicious, harassing, or persistent. Complicating matters further is when the senders use text-free or anonymous messaging apps such as TextNow, Google Voice, or Burner. These apps are designed to mask the sender’s real number, creating a digital wall of anonymity that can be challenging to penetrate. However, there are legitimate and serious steps you can take to figure out who is texting from a text-free app.
Understanding Text-Free Apps
Before taking any actions, it’s essential to understand how these apps function. Text-free or anonymous texting apps allow users to send SMS or MMS messages without using their actual phone number. These apps typically assign a temporary or alternate phone number, making it difficult, but not impossible, to trace the original sender.
Some of the most popular text-free apps include:
- TextNow
- TextFree by Pinger
- Burner
- Google Voice
- Hushed
These apps are commonly used for innocuous reasons like maintaining privacy online or using a “junk” number for unfamiliar websites. But in certain cases, they are misused for more questionable or even illegal activities.
Steps to Identify Messages from Text-Free Numbers
1. Start With Reverse Lookup Tools
The first method to try is using a reverse phone lookup service. Websites like Whitepages, Spokeo, and Truecaller can sometimes associate information with a text-free number. While not always successful with temporary or app-based numbers, these services might provide clues such as a city location, possible names, or associated social media accounts.
Some paid lookup services offer more detailed reports, which might include:
- Owner name (if available)
- Location of registration
- Carrier type (text-free or mobile)
- User-linked social profiles
It’s important to note that many of these numbers will show as “VoIP” or “non-fixed VoIP,” indicating that they’re associated with apps and are not tied to physical cell phone carriers.
2. Analyze Message Content Carefully
If you’re trying to figure out who the person is, pay close attention to the language, tone, and context of the messages. People unknowingly give away clues about their identity in how they write, the phrases they use, or topics they bring up. Ask yourself:
- Do they reference things only certain people would know?
- Is their grammar or writing style familiar?
- Are there any clues about their location, schedule, or habits?
In some cases, you may recognize the way the person communicates, even if the number itself means nothing to you.

3. Respond Strategically
If it’s safe and appropriate to do so, you might consider replying to the message in a strategic manner. Your goal here is not to confront or endanger yourself but to gather more information passively. For example:
- Ask a casual open-ended question: “Who is this?” or “How did you get this number?”
- See how the sender responds – some may inadvertently reveal something
- Avoid being aggressive, which could cause them to go silent or escalate
Most importantly, don’t share any personal information in case the sender is malicious.
4. Use the App’s Contact Information
Most text-free apps have policies against harassment and abuse. If you receive disturbing or threatening messages, or if someone is impersonating another individual, you may be able to file a formal abuse complaint with the app’s support team.
Here’s how you might go about it:
- Take screenshots of the texts
- Document the date and time of the messages
- Email the support team or abuse department of the app provider
For example:
- TextNow abuse support: abuse@textnow.com
- Pinger TextFree support: Use their contact page at pinger.com
The provider may not reveal the identity due to privacy policies, but they may suspend or deactivate the offending account if you provide sufficient evidence.
5. Contact Law Enforcement if Necessary
If you are being threatened, harassed, or feel unsafe due to anonymous text messages, contact your local police department immediately. Law enforcement can work with mobile carriers and app developers through legal channels such as subpoenas to uncover the identity of the user behind a specific number.
This step is essential when the content of the messages involves:
- Threats of violence
- Stalking or harassment
- Extortion or blackmail
- Sexual content involving minors or other illegal material
Most jurisdictions take cyberharassment seriously. The digital footprint left behind by text-free app users can often be traced by experts using forensic methods, even if the number was temporary or encrypted.
Tips to Prevent Future Anonymous Messaging
While it’s not always possible to prevent someone from sending you a message, you can take action to reduce the likelihood:
- Block unknown numbers as soon as you receive unwanted messages
- Limit the sharing of your personal phone number online
- Install caller ID apps that detect VoIP or virtual numbers
- Use privacy settings on your messaging apps and social platforms

Can You Ever Really Know Who’s Texting?
Despite all these methods, it’s important to acknowledge that text-free apps are intentionally difficult to trace. While detailed reverse lookups, behavioral analysis, or police involvement can provide answers in some cases, there are situations where the sender’s identity may remain unknown—especially if they are using encrypted or unregistered accounts overseas.
However, this shouldn’t deter you from acting. Every new anonymous message is a digital breadcrumb. By collecting data and following the right steps, you increase your chances of unmasking the sender—or stopping the communication altogether.
Conclusion
Unsolicited text messages from text-free numbers can be more than an annoyance; in some cases, they can escalate into serious safety or legal concerns. If you’re wondering how to figure out who is texting from a text-free app, combine logic with digital tools and, if necessary, legal action. Keep responsibility and safety as your priority—and know that you do have resources available to help you take control of the situation.
Whether through detective-like investigation or official intervention, it is possible to identify or, at the very least, stop an anonymous texter using a text-free app.