SMS Shield vs Halo
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
SMS Shield
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SMS Shield automatically filters and blocks spam, junk, and unwanted text messages โ all on your device. No cloud, no data sharing. Powered by AI-based detection and custom keyword blocking. Set up in seconds, enjoy a clean inbox forever. Privacy Policy: https://sites.google.com/view/privacy-policy-sms-shield/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Halo
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"It sounds like them" is no longer proof. Three seconds of audio is enough to clone a voice, and imposter scams are the most-reported fraud in America. Halo gives you a ten-second way to find out who is really on the line. WHEN A CALL FEELS OFF, HALO THEM Open Halo, glance at Face ID, and text a safety word to the number you already trust. If it's really them, the text lands on their phone, they read the two words back, and it matches your screen. If it's a scammer spoofing their caller ID, the text goes to the real person instead. The caller can't say the word. You hang up. HOW IT WORKS โข Halo notices you're on a live call โข Face ID confirms it's you asking, and signs the check with a key that never leaves your iPhone โข You text the link from your own Messages, to their real number โข Their screen and yours show the same two-word safety word. They read it back to you โข If they have Halo too, their Face ID lights up on your screen THE PERSON YOU'RE CHECKING NEEDS NOTHING No app, no account, no setup on their end. Any phone that can receive a text and open a link can pass the check. BUILT FOR THE PEOPLE SCAMMERS CALL โข Parents and grandparents who get the "I'm in trouble, send money" call โข Anyone whose job involves a voice asking to move money: finance teams, assistants, advisors, IT support โข Families who want one simple rule: "Halo me first" PRIVACY IS THE ARCHITECTURE โข No call records, ever. Halo never knows who you called or for how long โข No contacts permission. The text goes from your own Messages, so the other person's number never touches our servers โข No send history, anywhere โข The backend stores only your name, your public key, and a hash of your number. Delete it any time REAL CRYPTOGRAPHY UNDERNEATH Every check is a fresh, short-lived signature from a key locked inside your iPhone's security chip, unlockable only with Face ID. The safety word is derived from that signature, so a fake link can never show the right words. Stale, tampered, or forged links show a warning instead. Halo Pro subscriptions renew automatically until cancelled in Settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://haloconfirm.com/privacy
Screenshots
Verdict
SMS Shield and Halo are too close to call on the numbers: across 5 compared parameters โ price, ads, in-app purchases and device support among them โ neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. SMS Shield sells 1 one-off in-app purchase and Halo sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | SMS Shield | Halo |
|---|---|---|
| Price | Free | Free |
| Update frequency | โ | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 โ better | 18.0 |
| Further details โ not scored | ||
| Size | 13 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Mine Nur Kasimogullari | Pardha Ponugoti |
In-app purchases
SMS Shield
- Lifetime$9.99
Halo
- Halo Pro (Monthly)$0.991 Month
- Halo Pro (Yearly)$9.991 Year









