# TextShield: SMS Spam Filter — On-device SMS junk sorting

> On-device SMS junk sorting (iPhone/iPad app by 丽佳 施.)

- Source: https://appshunter.io/ios/app/textshield-sms-spam-filter/id6795545106 (this page in markdown: same URL + `.md`)
- Developer: [丽佳 施](https://appshunter.io/developer/1894580777)
- Category: Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.0 · 5 MB
- Languages: American English, Japanese, Chinese (Simplified, China)
- Released: 2026-08-06
- Data updated: 2026-08-12
- User reviews in markdown: https://appshunter.io/ios/app/textshield-sms-spam-filter/id6795545106/reviews.md

## What is TextShield?

Tired of spam texts? TextShield quietly sorts them out — the decision
is made on your device, and your messages never leave your phone.

HOW IT WORKS
Texts from unknown senders pass through three checkpoints:
1. Your allow list (always wins, important texts are never lost)
2. Your block list (keywords, regex, sender prefixes)
3. Built-in rule packs for Chinese (170 rules) and Japanese (101 rules)
   spam patterns (loan scams, fake invoices, gambling, delivery & bank phishing)
Anything unmatched is delivered normally — when in doubt, let it through.

EVERYTHING IS FREE
Unlimited rules, regex and sender-prefix rules, both built-in rule packs
and the filter test bench are open to everyone. No paywall, no subscription.

ABOUT THE ADS
A single banner sits at the bottom of the home screen, served by Google
AdMob. Fetching it is the app's only network activity. On first launch iOS
asks for tracking permission; if you decline, only non-personalized ads are
requested. The banner never reads your messages or your rules. A one-time
purchase removes the banner for good — it removes the banner only, nothing
gets unlocked.

NO ADS IN THE FILTER EXTENSION
The extension that actually classifies your texts contains no ad code and
no networking code at all.

NOTE
iOS only routes texts from unknown senders to filters. Messages from
your contacts and iMessage are never filtered — that's a system
privacy guarantee, not a limitation of this app.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-08-06

No release notes.

## More apps by 丽佳 施

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- [Ember — Private Diary](https://appshunter.io/ios/app/ember-private-diary/id6769777961)

All apps by 丽佳 施: https://appshunter.io/developer/1894580777

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-12.*