Blockr vs Sift
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Blockr
This AI-powered app automatically blocks unwanted texts and calls, including scams, robocalls, and telemarketers. It offers customizable protection with real-time updates to a scam database, ensuring a clean inbox and call log.
- AI-powered spam text blocking
- Real-time spam call blocking
- Customizable blocking preferences
- Continuously updated scam database
- Anti-smishing defense
- Block political and promotional spam
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Goodbye spam. Hello peace and quiet. Blockr stops spam calls and junk texts before they ever reach you. One simple setup, one payment, protection for life. No subscription, nothing renews. WHY BLOCKR People get dozens of spam texts and robocalls every month, and a single text scam costs victims an average of $1,000. Blockr protects your phone quietly in the background, 24/7. CALLS More than a million known spam and scam numbers are blocked automatically, and our database updates continuously to catch new ones. Your contacts always ring. Add any number to your own block list in seconds. TEXTS Scam and junk texts are filtered to the Junk folder before they interrupt you. Turn on ready-made keyword packs for common scams, or add your own words and phrases to block. LISTS You stay in control. An allow list makes sure the people who matter always get through, and a block list keeps unwanted numbers out for good. FAMILY PLAN Protect the people you love. The Family plan covers up to 6 people, each with their own account and protection. Perfect for parents and grandparents, who are targeted by scammers the most. PAY ONCE, YOURS FOR LIFE One payment unlocks Blockr on your iPhone forever. No subscription, no renewals, no surprises. Your protection keeps getting better without costing you more. Terms of Service: https://theappshop.io/terms Privacy Policy: https://theappshop.io/privacy California Privacy Notice: https://theappshop.io/privacy#california
Sift
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Sift is a privacy-first SMS filtering app for iPhone, built to make your inbox quieter and easier to control. Sift uses the iOS message filtering extension to classify junk, promotions, and important notifications directly on your device. By default, filtering does not send message contents to a server. Your custom rules, local statistics, and on-device personalization stay on the device. Key features - On-device SMS classification for spam, promotions, verification codes, delivery updates, banking notices, travel alerts, and more - Custom sender or message-body rules - Category mapping that redirects selected categories to Promotions or Junk - Private statistics that count categories without storing message text - Optional sample contribution with an on-device redaction preview, export, and deletion controls - Sift Premium: a one-time purchase that unlocks an on-demand multilingual Transformer model Sift is not a fraud-prevention guarantee. SMS classification is probabilistic and can make mistakes. For payments, accounts, verification codes, or other important messages, always verify the original message and official channels.
Screenshots
Verdict
The clearest difference is ads: Sift at none against Blockr's shown. Blockr's advantage is iOS requirement (16.0 vs 18.0). On price, update cadence, 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
Both are free to download. Blockr sells 9 in-app purchases, starting at $4.99 per month and Sift sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Blockr ships an update every 2 weeks, Sift every 9 days. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.
| Parameter | Blockr | Sift |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (367 ratings) — better | — |
| Positive reviews | 47.4% of reviews | — |
| Number of ratings | 367 — better | — |
| Update frequency | Every 2 weeks | Every 9 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 131 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | The App Shop, Inc. | 源鹏 廖 |
Bugs and requests
Blockr
Reported bugs
3 issues- App stops working after updates
- Blocking not working as expected for certain types of spam
- Issues with syncing blocked content across devices
Requested features
4 requests- Ability to whitelist specific senders or numbers
- Option to automatically reply 'STOP' to spam messages
- Integration with desktop/laptop for a more comprehensive solution
- Improved analytics and reporting on blocked messages
Sift
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Blockr
- Blockr Monthly7 Days trial$4.991 Month
- Blockr Monthly7 Days trial$5.991 Month
- Blockr Monthly7 Days trial$6.991 Month
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- Yearly7 Days trial$39.991 Year
- Limited Time Offer (Yearly)1 Year trial$39.991 Year
- Blockr Yearly1 Year trial2 variants$49.991 Year
- Blockr Yearly7 Days trial$49.991 Year
- Blockr Yearly7 Days trial$59.991 Year
- Lifetime Individual$39.99
Sift
- Sift Premium$0.99









