The short answer
The PhoneShield iPhone app can sort the texts you get from numbers you don’t know, the same way PhoneShield screens your calls. Apple does not let apps ask for this with a pop-up, so you switch it on once in Settings.
From then on it works by itself. A text from a stranger is checked in about a second and filed where it belongs. Texts from your contacts are never touched. It is part of your PhoneShield plan at no extra cost.
Where your texts go
| The text | Where it goes |
|---|---|
| Scams: fake package, toll, bank and Apple ID alerts, prizes, refunds, job and crypto pitches | Spam, without a notification |
| Political texts: campaigns, candidates, donation asks and polls | Spam |
| Out-of-the-blue strangers: “hey, I missed you”, “is this Jessica?”, a “wrong number” that wants to chat | Spam |
| Marketing from real companies, usually with “Reply STOP” | Promotions |
| One-time codes, appointment and pharmacy reminders, deliveries, card alerts from your bank | Transactions |
| Anything that looks like a real person with a real reason, or that we are not sure about | Your inbox, as usual |
The out-of-the-blue openers deserve a word. They look harmless, and that is the point: romance and “wrong number” investment scams start with a friendly message and a few weeks of chat before money ever comes up.
How PhoneShield decides
- The shared scam list first. A number PhoneShield families have already caught scamming by phone goes straight to Spam when it texts.
- Then a careful reading. An AI model reads the text along with a few plain facts: whether it came from a company short code or an ordinary phone number, and whether it carries a link. A “your card was used” alert from your bank’s short code is real; the same words from an ordinary number are the opening of a scam.
- Two rules stand above the AI. The shared scam list always wins, and a one-time code is never put in Spam, so you are never locked out of your own bank or email.
- When in doubt, the inbox. A real text in Spam is worse than a scam in the inbox, so anything unclear is delivered normally.
Finding a filtered text
In Messages, tap Filters at the top of your conversation list to switch between your inbox, Unknown Senders, Transactions, Promotions and Spam. If something you expected landed in Spam, it is still there; open it as usual. On older versions of iOS the Spam list is called Junk.
What we see, and what we keep
- Apple only gives the filter texts from numbers that are not in your contacts.
- Your iPhone sends us the sender’s number and the text, without your name, your number or your account.
- The AI model we use is set so that its provider does not keep the text.
- We keep neither the text nor the sender: only a daily count of how many texts were checked and where they went.
The details are in our privacy policy.
Android
Android has no filter plug-in like the iPhone’s. The PhoneShield Android app will warn you when a text looks like a scam rather than move it. Until then, Google Messages has its own spam protection, switched on by default.
Turning it off
Go back to Settings, Apps, Messages, Text Message Filter and choose None. Texts from unknown numbers then arrive exactly as they did before.
Questions people ask
How do I turn on PhoneShield's text filter on my iPhone?
Open Settings, tap Apps, then Messages, then Text Message Filter, and choose PhoneShield. On iOS 18 and earlier the same choice is under Messages, Unknown & Spam. You need the PhoneShield iPhone app installed and signed in.
Which texts does PhoneShield see?
Only texts from numbers that are not in your contacts. Apple never hands a filter app your conversations with people you know.
Where do filtered texts go?
Scams, political texts and out-of-the-blue messages from strangers go to Spam, without a notification. Marketing from real companies goes to Promotions, and codes, reminders and deliveries go to Transactions. Everything else arrives in your inbox as usual. In Messages, tap Filters at the top to see each list.
Does PhoneShield keep my text messages?
No. Each text from an unknown number is checked as it arrives and then forgotten. We keep neither the text nor the sender, only a daily count of how many texts were checked and where they went.
Will I miss my one-time login codes?
No. Codes go to Transactions, and a message carrying a one-time code is never put in Spam, whatever else it says.
Does it work on Android?
Not yet. Android has no filter plug-in like the iPhone's, so the Android version will warn you about a scam text instead of moving it. Until then, Google Messages has its own spam protection switched on by default.