# Spam Text Blocker vs PDF Diet

The clearest difference is price: Spam Text Blocker at Free against PDF Diet's $1.99. PDF Diet's advantage is in-app purchases (none vs 4). On update cadence, ads, device support and iOS requirement there is nothing between them.

Spam Text Blocker is free to download; PDF Diet costs $1.99 up front. Spam Text Blocker sells 4 in-app purchases, starting at $1.49 per month. PDF Diet asks for nothing beyond the download.

Spam Text Blocker ships an update every 3 weeks, PDF Diet every 10 days. The most recent releases landed on November 4, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Spam Text Blocker | PDF Diet |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.5 (11 ratings)](https://appshunter.io/ios/app/spam-text-blocker-filtera/id6741700342/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Monetization | Freemium | — |
| Size | 27 MB | 3 MB |
| Requires iOS | **17.0** | 17.1 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Dimas Ashidiqi](https://appshunter.io/developer/1698444614) | [Artem Svitelskyi](https://appshunter.io/developer/1892488801) |

## What reviewers say

### Spam Text Blocker

[App page](https://appshunter.io/ios/app/spam-text-blocker-filtera/id6741700342)

Automatically detect and block unwanted text messages using on-device AI. Keep your inbox clean and secure with customizable filters for SMS and RCS. Enjoy a distraction-free messaging experience.

**Highlights:** Automatic spam blocking with AI, On-device privacy, Customizable filters, SMS & RCS message filtering, Blocks 99% of spam texts

**Features:** Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $1.49 | per month |
| Yearly Pro | $9.99 | per year |
| Lifetime Pro | $11.99 | one-time |
| Lifetime Pro | $14.99 | one-time |


### PDF Diet

[App page](https://appshunter.io/ios/app/pdf-diet-document-optimizer/id6763309217)

**In-app purchases:** none


## Frequently asked questions

### Is Spam Text Blocker free?

Spam Text Blocker is free to download, with in-app purchases available.

### Is PDF Diet free?

PDF Diet costs $1.99, with no in-app purchases.

### Do Spam Text Blocker or PDF Diet have ads?

Neither Spam Text Blocker nor PDF Diet shows ads.

### Which is updated more often, Spam Text Blocker or PDF Diet?

Spam Text Blocker ships an update every 3 weeks, and PDF Diet every 10 days. Most recently, Spam Text Blocker was updated on November 4, 2026 and PDF Diet on November 10, 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.*