# Call Shield vs Math keyboard

The clearest difference is review sentiment: Math keyboard at 67% against Call Shield's 0%. Math keyboard also leads on rating (5.0 vs 1.0) and ratings volume (4 vs 1). Call Shield's advantage is update cadence (fortnightly vs monthly). On ads, in-app purchases, monetization model and device support there is nothing between them.

Call Shield costs $1.99 and Math keyboard $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Math keyboard holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews point the same way: 0% of Call Shield's written reviews are positive against 67% of Math keyboard's.

Call Shield ships an update fortnightly, Math keyboard monthly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Call Shield | Math keyboard |
| --- | --- | --- |
| Price | $1.99 | **$0.99** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/call-shield-spam-call-blocker/id6744029271/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/math-keyboard-calcuboard/id6744564198/reviews)** |
| Number of ratings | 1 | **4** |
| Positive reviews | 0.0% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Paid | Paid |
| Size | 35 MB | 3 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [磊 汪](https://appshunter.io/developer/1063627762) | [Nikolai Rodionov](https://appshunter.io/developer/1123457016) |

## What reviewers say

### Call Shield

[App page](https://appshunter.io/ios/app/call-shield-spam-call-blocker/id6744029271)

Take control of your incoming calls with this app. It blocks unwanted callers, including robocallers and telemarketers, using a secure, local blocklist that operates entirely on your device. Enjoy privacy protection with offline functionality and no required login.

**Highlights:** Block unwanted calls, Block number ranges (prefixes), Offline functionality, No login required, Local device blocklist, Supports millions of blocked numbers

**In-app purchases:** none


### Math keyboard

[App page](https://appshunter.io/ios/app/math-keyboard-calcuboard/id6744564198)

Perform calculations directly from your keyboard without switching apps. This smart helper allows quick math while chatting, taking notes, or entering data. It features calculator memory to save and reuse values, enhancing productivity.

**Highlights:** Built-in calculator keyboard, Calculator memory function, No app switching required, Supports basic and advanced operations, Minimalist design for productivity

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

**In-app purchases:** none


## Frequently asked questions

### Is Call Shield free?

Call Shield costs $1.99, with no in-app purchases.

### Is Math keyboard free?

Math keyboard costs $0.99, with no in-app purchases.

### Which has better reviews, Call Shield or Math keyboard?

Math keyboard is rated higher. Call Shield averages 1.0 out of 5 from 1 ratings, while Math keyboard averages 5.0 from 4 ratings.

### Do Call Shield or Math keyboard have ads?

Neither Call Shield nor Math keyboard shows ads.

### Which is updated more often, Call Shield or Math keyboard?

Call Shield ships an update fortnightly, and Math keyboard monthly. Most recently, Call Shield was updated on October 24, 2026 and Math keyboard on October 24, 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.*