# Phonewords Pro vs Sigma

The clearest difference is price: Sigma at Free against Phonewords Pro's $149.99. Sigma also leads on update cadence (every 4 days vs every 3 weeks). Phonewords Pro's advantage is device support (3 vs 1). On ads, in-app purchases and iOS requirement there is nothing between them.

Sigma is free to download; Phonewords Pro costs $149.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Phonewords Pro ships an update every 3 weeks, Sigma every 4 days. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Phonewords Pro | Sigma |
| --- | --- | --- |
| Price | $149.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/phonewords-pro/id6471916820/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | Paid | — |
| Size | 492 MB | 7 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Moustapha Berjaoui](https://appshunter.io/developer/1564404326) | [MAJOR Productions LLC](https://appshunter.io/developer/1885618341) |

## What reviewers say

### Phonewords Pro

[App page](https://appshunter.io/ios/app/phonewords-pro/id6471916820)

This app allows users to perform mentalism tricks, revealing secret thoughts like names and numbers. It integrates with various devices and offers features like mind reading and influencing decisions, designed for live entertainment.

**Highlights:** Reveal secret thoughts (names, numbers, birthdays), Influence decisions subtly, Decode hidden words via phone dial pad, Heighten senses with key tone recognition, Acrostic name reveal, Contacts peek integration, Seamless integration with external devices and apps

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Sigma

[App page](https://appshunter.io/ios/app/sigma-calculator/id6760669373)

**In-app purchases:** none


## Frequently asked questions

### Is Phonewords Pro free?

Phonewords Pro costs $149.99, with no in-app purchases.

### Is Sigma free?

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

### Do Phonewords Pro or Sigma have ads?

Neither Phonewords Pro nor Sigma shows ads.

### Which is updated more often, Phonewords Pro or Sigma?

Phonewords Pro ships an update every 3 weeks, and Sigma every 4 days. Most recently, Phonewords Pro was updated on October 27, 2026 and Sigma on October 25, 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.*