# Blast Pressure vs Arlektra

The clearest difference is review sentiment: Blast Pressure at 67% against Arlektra's 20%. Arlektra's advantage is price (Free vs $4.99). On update cadence, ads, in-app purchases and device support there is nothing between them.

Arlektra is free to download; Blast Pressure costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Blast Pressure ships an update every 8 months, Arlektra every 6 months. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Blast Pressure | Arlektra |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | — | **[2.1 (9 ratings)](https://appshunter.io/ios/app/arlektra/id1449428803/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | **66.7% of reviews** | 20.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 6 months** |
| Monetization | Paid | **Free** |
| Size | 4 MB | 433 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Rab Elias](https://appshunter.io/developer/918944482) | [AR STEM LABS](https://appshunter.io/developer/1449428802) |

## What reviewers say

### Blast Pressure

[App page](https://appshunter.io/ios/app/blast-pressure/id1187622431)

This application calculates blast pressure on structures using TNT equivalence. It generates detailed reports including scaled pressure, arrival and duration times, and shock wave graphs, supporting various explosive materials for analysis and design.

**Highlights:** Blast pressure calculation, TNT equivalence analysis, Comprehensive report generation, Scaling laws and Hopkinson rule, Shock wave graphing, Support for multiple explosive materials

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

**In-app purchases:** none


### Arlektra

[App page](https://appshunter.io/ios/app/arlektra/id1449428803)

This app uses augmented reality to teach electronics and circuits. Visualize complex theories, build circuits with step-by-step 3D instructions, and explore electrical parts in detail. Learn to use tools like a digital multimeter with interactive guidance.

**Highlights:** Augmented reality 3D instructions, Visualize electrical theories, Step-by-step circuit building, Explore electrical parts in 3D, Learn multimeter usage, Interactive troubleshooting guidance

**In-app purchases:** none


## Frequently asked questions

### Is Blast Pressure free?

Blast Pressure costs $4.99, with no in-app purchases.

### Is Arlektra free?

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

### Do Blast Pressure or Arlektra have ads?

Neither Blast Pressure nor Arlektra shows ads.

### Which is updated more often, Blast Pressure or Arlektra?

Blast Pressure ships an update every 8 months, and Arlektra every 6 months. Most recently, Blast Pressure was updated on October 20, 2026 and Arlektra 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.*