# C172 M&B Mobile vs Constructive Calculator

The clearest difference is price: Constructive Calculator at Free against C172 M&B Mobile's $1.99. Constructive Calculator also leads on update cadence (every 8 days vs monthly). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Constructive Calculator is free to download; C172 M&B Mobile costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

C172 M&B Mobile ships an update monthly, Constructive Calculator every 8 days. The most recent releases landed on October 16, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | C172 M&B Mobile | Constructive Calculator |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/constructive-calculator/id6778157421/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 8 days** |
| Monetization | Paid | **Free** |
| Size | 8 MB | 1 MB |
| Requires iOS | 16.6 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Pedro Isidoro](https://appshunter.io/developer/1506809339) | [Dmitriy Mayorov](https://appshunter.io/developer/6778157423) |

## What reviewers say

### C172 M&B Mobile

[App page](https://appshunter.io/ios/app/c172-m-and-b-mobile/id1523694349)

Calculate mass and balance for various Cessna 172 models with interactive weight and arm selection. Features real-time chart plotting, loading chart access, and overweight alerts. Generate professional PDF loadsheets for sharing or printing.

**Highlights:** Interactive weight and arm selection, Real-time chart plotting, Loading chart access, Overweight alerts, PDF loadsheet generation, Unit conversion

**Features:** Vision Pro support

**In-app purchases:** none


### Constructive Calculator

[App page](https://appshunter.io/ios/app/constructive-calculator/id6778157421)

This calculator performs calculations with arbitrary precision, avoiding rounding errors common in standard calculators. It provides an extensive scientific keypad and can display an unlimited number of digits for exact results.

**Highlights:** Arbitrary-precision calculations, Unlimited digit display, Scientific keypad, Exact results for large numbers, Running tape of calculations, Locale-aware digit grouping

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is C172 M&B Mobile free?

C172 M&B Mobile costs $1.99, with no in-app purchases.

### Is Constructive Calculator free?

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

### Do C172 M&B Mobile or Constructive Calculator have ads?

Neither C172 M&B Mobile nor Constructive Calculator shows ads.

### Which is updated more often, C172 M&B Mobile or Constructive Calculator?

C172 M&B Mobile ships an update monthly, and Constructive Calculator every 8 days. Most recently, C172 M&B Mobile was updated on October 16, 2026 and Constructive Calculator on October 5, 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.*