# Calc vs Spam Text Blocker

The clearest difference is in-app purchases: Calc at none against Spam Text Blocker's 4. Calc also leads on rating (4.8 vs 4.5) and ratings volume (44 vs 11). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. Spam Text Blocker sells 4 in-app purchases, starting at $1.49 per month. Calc asks for nothing beyond the download.

Calc holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 44 and 11 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on November 4, 2026.

## The numbers

| Metric | Calc | Spam Text Blocker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (44 ratings)](https://appshunter.io/ios/app/calc-multiline-calculator/id6482418917/reviews)** | [4.5 (11 ratings)](https://appshunter.io/ios/app/spam-text-blocker-filtera/id6741700342/reviews) |
| Number of ratings | **44** | 11 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | **Free** | Freemium |
| Size | 18 MB | 27 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Aleksei Khaliapin](https://appshunter.io/developer/1739805597) | [Dimas Ashidiqi](https://appshunter.io/developer/1698444614) |

## What reviewers say

### Calc

[App page](https://appshunter.io/ios/app/calc-multiline-calculator/id6482418917)

This app offers instant calculations as you type, eliminating the need for an equals button. Its notepad-style interface allows for multiple calculations at once, with smart result reuse for efficiency. It's a free, user-friendly tool for everyday math, schoolwork, and professional tasks.

**Highlights:** Instant calculation as you type, Multiline input for multiple problems, Smart result reuse, Basic arithmetic and percentages, No equals button required, Clean, minimalist design

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Calc free?

Calc is free to download, with no in-app purchases.

### Is Spam Text Blocker free?

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

### Which has better reviews, Calc or Spam Text Blocker?

Calc is rated higher. Calc averages 4.8 out of 5 from 44 ratings, while Spam Text Blocker averages 4.5 from 11 ratings.

### Do Calc or Spam Text Blocker have ads?

Neither Calc nor Spam Text Blocker shows ads.

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

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