Comparison

Sifter vs 壳图图

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

壳图图

Create stylish screenshots with a minimalist design. This utility app offers a new experience for capturing high-definition images, syncing in real-time with official Apple phone models.

Highlights
  • Minimalist design
  • One-click HD image saving
  • Real-time sync with Apple models
  • New screenshot experience
Features
Read full description

带壳截图新体验!超简约设计!实时同步 Apple 官方最新机型!

Screenshots

Sifter4 screens
壳图图3 screens

Verdict

The call

The clearest difference is price: 壳图图 at Free against Sifter's $2.99. 壳图图 also leads on update cadence (every 8 days vs every 3 months) and iOS requirement (15.0 vs 17.0). Sifter's advantage is rating (4.1 vs 3.5) and in-app purchases (none vs 1). On ads 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

壳图图 is free to download; Sifter costs $2.99 up front. 壳图图 sells 1 one-off in-app purchase. Sifter asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Sifter holds the better App Store score, 4.1 against 3.5. That said, the two scores are not equally well evidenced: Sifter has 116 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Sifter ships an update every 3 months, 壳图图 every 8 days. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

Scorecard7 real differences · 3 level
Sifter versus 壳图图: the parameters behind the verdict, then further details
ParameterSifter壳图图
Price$2.99Free — better
Rating4.1 (116 ratings) — better3.5 (2 ratings)
Positive reviews28.6% of reviews—
Number of ratings116 — better2
Update frequencyEvery 3 monthsEvery 8 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size10 MB31 MB
Age rating4+4+
Developer磊 汪日伟 何

Customer experience

Sifter

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

壳图图

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Sifter

No in-app purchases

1 purchases

壳图图

One-time1
  • 永久会员Free

Questions

Is Sifter free?
Sifter costs $2.99, with no in-app purchases.
Is 壳图图 free?
壳图图 is free to download, with in-app purchases available.
Which has better reviews, Sifter or 壳图图?
Sifter is rated higher. Sifter averages 4.1 out of 5 from 116 ratings, while 壳图图 averages 3.5 from 2 ratings.
Do Sifter or 壳图图 have ads?
Neither Sifter nor 壳图图 shows ads.
Which is updated more often, Sifter or 壳图图?
Sifter ships an update every 3 months, and 壳图图 every 8 days. Most recently, Sifter was updated on November 6, 2026 and 壳图图 on November 5, 2026.

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