Comparison

Sifter vs 短信狗卫士

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Sifter

This app provides a smart spam filter for iOS devices, allowing users to create personalized rules to block unwanted text messages. It prioritizes user privacy with local processing and offers advanced filtering options like regular expressions.

Highlights
  • Customizable filtering rules
  • Blacklist and whitelist contacts
  • Regex filtering for advanced control
  • Local data processing for privacy
  • Blocks unwanted SMS and MMS
Read full description

Reclaim your inbox with Sifter, the intelligent and private SMS filter for iOS. Powered by a robust Message Filter extension and secure on-device processing, Sifter gives you absolute control over your messaging experience without compromising your privacy. FOCUS ON WHAT MATTERS Sifter empowers you to design personalized filtering rules to block unwanted texts while keeping your inbox clean and focused. With a refined interface built for speed and clarity, managing your rules is seamless and efficient. KEY FEATURES - RULE-BASED CATEGORIZATION: Easily filter and organize messages into Transactions and Promotions using your own custom rules. - GRANULAR FILTERING: Tailor your protection with specific rules. From simple keywords to sophisticated patterns, you decide exactly what reaches your notification center. - CONTACT MANAGEMENT: Protect your peace of mind by whitelisting trusted contacts or blacklisting specific numbers and entire contact lists. - ADVANCED REGEX ENGINE: Leverage the power of Regular Expressions to create intricate, high-precision filtering rules for complex messaging patterns. - PRIVACY-FIRST ARCHITECTURE: Sifter operates entirely locally on your device. Your messages never leave your phone, ensuring your personal data remains 100% private. SUPPORTED RULE TYPES - Whitelist and Blacklist Users (Contacts/Numbers) - Whitelist and Blacklist Keywords - Transactional and Promotional Categorization - Regex-powered versions of all the above Sifter is your personal gatekeeper. Whether you are blocking marketing noise or organizing important transactional alerts, Sifter provides a private and powerful solution to keep your messaging focused on what truly matters. Download Sifter and take full control over your inbox.

About

短信狗卫士

Features
Read full description

短信狗卫士是一款专为苹果设备开发的短信过滤应用程序。它采用最新的机器学习算法,可以智能地识别和过滤垃圾短信、广告短信和诈骗短信,让您的短信成为真正的私人信息。此外,该应用程序还支持自定义号码规则和关键词规则,您可以根据自己的需求进行设置,以确保您的短信过滤更加精准。您还可以通过规则拦截测试来测试自定义规则是否生效,确保您的短信过滤策略具有高可靠性。 短信狗卫士的操作非常简单,无需复杂的配置,您只需打开应用程序即可享受高效的短信过滤服务。 短信狗卫士是一款功能强大、操作简单、可靠性高的短信过滤应用程序,让您的短信过滤更加智能、高效。它能够有效地保护您的隐私,让您的通讯更加安全、便捷。

Screenshots

Sifter4 screens
短信狗卫士4 screens

Verdict

The call

The clearest difference is review sentiment: 短信狗卫士 at 100% against Sifter's 29%. 短信狗卫士 also leads on rating (5.0 vs 4.1) and update cadence (every 5 days vs every 3 months). Sifter's advantage is ratings volume (113 vs 1). On ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Sifter costs $2.99 and 短信狗卫士 $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

短信狗卫士 holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Sifter has 113 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 29% of Sifter's written reviews are positive against 100% of 短信狗卫士's.

UpkeepUpdate frequency

Sifter ships an update every 3 months, 短信狗卫士 every 5 days. Both last shipped on October 24, 2026.

Scorecard6 real differences · 4 level
Sifter versus 短信狗卫士: the parameters behind the verdict, then further details
ParameterSifter短信狗卫士
Price$2.99$0.99 — better
Rating4.1 (113 ratings)5.0 (1 ratings) — better
Positive reviews28.6% of reviews100.0% of reviews — better
Number of ratings113 — better1
Update frequencyEvery 3 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.014.0 — better
Further details — not scored
Size10 MB9 MB
Age rating4+4+
Developer磊 汪珍珍 张

Customer experience

Sifter

All ratings112 ratings
Positive76.8%
Neutral1.8%
Negative21.4%
Written reviews14 reviews
Positive28.6%
Neutral7.1%
Negative64.3%

短信狗卫士

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Sifter

No in-app purchases

None

短信狗卫士

No in-app purchases

Questions

Is Sifter free?
Sifter costs $2.99, with no in-app purchases.
Is 短信狗卫士 free?
短信狗卫士 costs $0.99, with no in-app purchases.
Which has better reviews, Sifter or 短信狗卫士?
短信狗卫士 is rated higher. Sifter averages 4.1 out of 5 from 113 ratings, while 短信狗卫士 averages 5.0 from 1 ratings.
Do Sifter or 短信狗卫士 have ads?
Neither Sifter nor 短信狗卫士 shows ads.
Which is updated more often, Sifter or 短信狗卫士?
Sifter ships an update every 3 months, and 短信狗卫士 every 5 days. Most recently, Sifter was updated on October 24, 2026 and 短信狗卫士 on October 24, 2026.

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