# InLock vs Sigma

The clearest difference is price: Sigma at Free against InLock's $150.00. On update cadence, ads, in-app purchases and device support there is nothing between them.

Sigma is free to download; InLock costs $150.00 up front. Neither carries in-app purchases, so what you see is what you pay.

InLock ships an update every 4 days, Sigma every 2 days. The most recent releases landed on October 8, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | InLock | Sigma |
| --- | --- | --- |
| Price | $150.00 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/inlock/id6758555025/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 days | **Every 2 days** |
| Monetization | Paid | — |
| Size | 18 MB | 7 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Chon Ip Tran](https://appshunter.io/developer/1871987162) | [MAJOR Productions LLC](https://appshunter.io/developer/1885618341) |

## What reviewers say

### InLock

[App page](https://appshunter.io/ios/app/inlock/id6758555025)

This app is a powerful tool for mentalists and magicians, enabling them to perform impressive phone unlock routines, predictions, and confabulations. It features a realistic simulation of a phone's lock screen and keypad, with versatile input methods and instant conversion of data into reveals.

**Highlights:** Realistic phone lock screen simulation, Dynamic Home Screen with notifications, Multiple input methods (voice, remote, classic), Instant conversion of inputs to reveals, Invisible peek features, iOS Shortcuts integration, Seamless integration with other magic 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 InLock free?

InLock costs $150.00, with no in-app purchases.

### Is Sigma free?

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

### Do InLock or Sigma have ads?

Neither InLock nor Sigma shows ads.

### Which is updated more often, InLock or Sigma?

InLock ships an update every 4 days, and Sigma every 2 days. Most recently, InLock was updated on October 8, 2026 and Sigma on October 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*