# Blockr vs Sift

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.

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.

## The numbers

| Metric | Blockr | Sift |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (367 ratings)](https://appshunter.io/ios/app/blockr-sms-spam-text-blocker/id6502702219/reviews)** | — |
| Number of ratings | **367** | — |
| Positive reviews | 47.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Size | 131 MB | 40 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [The App Shop, Inc.](https://appshunter.io/developer/1746511328) | [源鹏 廖](https://appshunter.io/developer/6777849850) |

## What reviewers say

### Blockr

[App page](https://appshunter.io/ios/app/blockr-sms-spam-text-blocker/id6502702219)

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.

**Highlights:** 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

**Features:** Family Sharing

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Blockr Monthly | $4.99 | per month |
| Blockr Monthly | $5.99 | per month |
| Blockr Monthly | $6.99 | per month |
| Yearly | $39.99 | per year |
| Limited Time Offer (Yearly) | $39.99 | per year |
| Blockr Yearly | $49.99 | per year |
| Blockr Yearly | $49.99 | per year |
| Blockr Yearly | $59.99 | per year |
| Lifetime Individual | $39.99 | one-time |

**What reviewers like**

- 🚀 Blocks spam texts effectively
- 👍 Easy to set up and use
- 🔒 Helps maintain privacy
- 😊 Provides relief from constant spam

**What reviewers complain about**

- 🐛 Inconsistent performance, some spam still gets through
- 🤔 Overly aggressive blocking, leading to important messages being blocked
- 💤 Lack of customer support responsiveness
- 💰 Subscription-based model with hidden costs

**Reported bugs**

- App stops working after updates
- Blocking not working as expected for certain types of spam
- Issues with syncing blocked content across devices

**Requested features**

- 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

[App page](https://appshunter.io/ios/app/sift-spam-text-filter/id6788805739)

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sift Premium | $0.99 | one-time |


## Frequently asked questions

### Is Blockr free?

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

### Is Sift free?

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

### Do Blockr or Sift have ads?

Blockr shows ads; Sift does not.

### Which is updated more often, Blockr or Sift?

Blockr ships an update every 2 weeks, and Sift every 9 days. Most recently, Blockr was updated on November 8, 2026 and Sift on October 31, 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.*