# ZAP短信 vs Quiet

The clearest difference is review sentiment: ZAP短信 at 50% against Quiet's 0%. ZAP短信 also leads on price (Free vs $3.99) and rating (4.3 vs 1.0). Quiet's advantage is in-app purchases (none vs 6) and update cadence (every 3 days vs fortnightly). On ads, monetization model and iOS requirement there is nothing between them.

ZAP短信 is free to download; Quiet costs $3.99 up front. ZAP短信 sells 6 in-app purchases, starting at $0.99 per month. Quiet asks for nothing beyond the download.

ZAP短信 holds the better App Store score, 4.3 against 1.0. That said, the two scores are not equally well evidenced: ZAP短信 has 11 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of ZAP短信's written reviews are positive against 0% of Quiet's.

ZAP短信 ships an update fortnightly, Quiet every 3 days. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | ZAP短信 | Quiet |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.3 (11 ratings)](https://appshunter.io/ios/app/zap-ai/id1547579838/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/quiet-sms-classifier/id6739860634/reviews) |
| Number of ratings | **11** | 1 |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 3 days** |
| Monetization | Paid | Paid |
| Size | 18 MB | 7 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [经纬 郭](https://appshunter.io/developer/1159251754) | [冠弛 任](https://appshunter.io/developer/1722508290) |

## What reviewers say

### ZAP短信

[App page](https://appshunter.io/ios/app/zap-ai/id1547579838)

This app intelligently filters and categorizes your SMS messages locally using a smart model trained on user-submitted data. It offers customizable rules for de-sensitizing and filtering various message types, enhancing privacy and organization without relying on external services.

**Highlights:** Local intelligent SMS filtering, Categorization of SMS types, Customizable de-sensitization rules, Customizable keyword and sender filtering, iCloud multi-device synchronization, Local model training via Apple Watch

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ZAP Monthly | $0.99 | per month |
| ZAP Yearly | $4.99 | per year |
| A Cup of Coffee | $0.99 | one-time |
| A Lunch | $2.99 | one-time |
| Full Energy | $9.99 | one-time |
| ZAP Pro Lifetime | $12.99 | one-time |


### Quiet

[App page](https://appshunter.io/ios/app/quiet-sms-classifier/id6739860634)

This app filters and manages spam messages to keep your SMS inbox clean and organized. It offers flexible rule settings for blocking unwanted messages and categorizing important ones. Local filtering technology ensures your data remains private and secure on your device.

**Highlights:** Spam message filtering, Message categorization, Flexible rule settings, Local data filtering, User-friendly interface

**In-app purchases:** none


## Frequently asked questions

### Is ZAP短信 free?

ZAP短信 is free to download, with in-app purchases available.

### Is Quiet free?

Quiet costs $3.99, with no in-app purchases.

### Which has better reviews, ZAP短信 or Quiet?

ZAP短信 is rated higher. ZAP短信 averages 4.3 out of 5 from 11 ratings, while Quiet averages 1.0 from 1 ratings.

### Do ZAP短信 or Quiet have ads?

Neither ZAP短信 nor Quiet shows ads.

### Which is updated more often, ZAP短信 or Quiet?

ZAP短信 ships an update fortnightly, and Quiet every 3 days. Most recently, ZAP短信 was updated on October 24, 2026 and Quiet on October 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*