# Blast Pressure vs Mental Arithmetic Math

The clearest difference is price: Mental Arithmetic Math at Free against Blast Pressure's $4.99. Mental Arithmetic Math also leads on update cadence (every 2 months vs every 8 months) and review sentiment (90% vs 67%). Blast Pressure's advantage is ads (none vs shown). On in-app purchases and device support there is nothing between them.

Mental Arithmetic Math 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, Mental Arithmetic Math every 2 months. The most recent releases landed on October 3, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Blast Pressure | Mental Arithmetic Math |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | — | **[4.4 (90 ratings)](https://appshunter.io/ios/app/mental-arithmetic-math/id1580847431/reviews)** |
| Number of ratings | — | **90** |
| Positive reviews | 66.7% of reviews | **90.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Every 2 months** |
| Monetization | Paid | **Ad-supported** |
| Size | 4 MB | 105 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Rab Elias](https://appshunter.io/developer/918944482) | [Satoshi Konno](https://appshunter.io/developer/1565729374) |

## 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


### Mental Arithmetic Math

[App page](https://appshunter.io/ios/app/mental-arithmetic-math/id1580847431)

Engage in fun arithmetic challenges suitable for all ages. Improve your math skills and concentration with adjustable difficulty levels. Play solo or with friends, even offline, for a quick and enjoyable brain workout.

**Highlights:** Arithmetic challenges, Adjustable difficulty, Suitable for all ages, Play with friends, Offline play, Improves concentration

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Blast Pressure free?

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

### Is Mental Arithmetic Math free?

Mental Arithmetic Math is free to download, with no in-app purchases.

### Do Blast Pressure or Mental Arithmetic Math have ads?

Mental Arithmetic Math shows ads; Blast Pressure does not.

### Which is updated more often, Blast Pressure or Mental Arithmetic Math?

Blast Pressure ships an update every 8 months, and Mental Arithmetic Math every 2 months. Most recently, Blast Pressure was updated on October 3, 2026 and Mental Arithmetic Math on October 11, 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.*