Comparison

Sifter vs 2P0

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
Currently charting
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

2P0

Features
Read full description

Use 2P0 to take photos that get signed, and whose metadata and public certificate get recorded in the 2P0 PKI system. - Share your signed photos for greater trust. - Verify your authorship using encryption challenges.

Screenshots

Sifter4 screens
2P03 screens

Verdict

The call

The clearest difference is price: 2P0 at Free against Sifter's $2.99. 2P0 also leads on update cadence (weekly vs every 3 months) and iOS requirement (15.0 vs 17.0). Sifter's advantage is chart position (#183 vs unranked). 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

2P0 is free to download; Sifter costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Sifter ships an update every 3 months, 2P0 weekly. The most recent releases landed on November 6, 2026 and November 8, 2026 respectively.

Scorecard4 real differences · 7 level
Sifter versus 2P0: the parameters behind the verdict, then further details
ParameterSifter2P0
Price$2.99Free — better
Rating4.1 (116 ratings) — better—
Positive reviews28.6% of reviews—
Number of ratings116 — better—
Update frequencyEvery 3 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
Best chart rank#183 — better—
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.015.0 — better
Further details — not scored
Size10 MB101 MB
Age rating4+17+
Developer磊 汪JUMP DEER s.r.o.

In-app purchases

None

Sifter

No in-app purchases

None

2P0

No in-app purchases

Questions

Is Sifter free?
Sifter costs $2.99, with no in-app purchases.
Is 2P0 free?
2P0 is free to download, with no in-app purchases.
Do Sifter or 2P0 have ads?
Neither Sifter nor 2P0 shows ads.
Which is updated more often, Sifter or 2P0?
Sifter ships an update every 3 months, and 2P0 weekly. Most recently, Sifter was updated on November 6, 2026 and 2P0 on November 8, 2026.

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