# Armstrong Savings Calculator vs Contract Admin

The clearest difference is iOS requirement: Armstrong Savings Calculator at 11.0 against Contract Admin's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Armstrong Savings Calculator ships an update every 3 months, Contract Admin every 2 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Armstrong Savings Calculator | Contract Admin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/armstrong-savings-calculator/id1432741159/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 39 MB | 48 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Armstrong World Industries Inc.](https://appshunter.io/developer/620435899) | [Francisco Hermoso](https://appshunter.io/developer/1686434530) |

## What reviewers say

### Armstrong Savings Calculator

[App page](https://appshunter.io/ios/app/armstrong-savings-calculator/id1432741159)

Calculate savings for construction projects by comparing traditional and pre-engineered solutions. Input job details to receive instant savings reports and improve job-site efficiency for installers.

**Highlights:** Calculate time, material, and labor savings, Compare traditional vs. pre-engineered solutions, Input job or project details, Receive instant savings reports, Share savings reports, Improve construction efficiencies

**Features:** macOS Compatibility

**In-app purchases:** none


### Contract Admin

[App page](https://appshunter.io/ios/app/contract-admin/id6448802918)

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

**In-app purchases:** none


## Frequently asked questions

### Is Armstrong Savings Calculator free?

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

### Is Contract Admin free?

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

### Do Armstrong Savings Calculator or Contract Admin have ads?

Neither Armstrong Savings Calculator nor Contract Admin shows ads.

### Which is updated more often, Armstrong Savings Calculator or Contract Admin?

Armstrong Savings Calculator ships an update every 3 months, and Contract Admin every 2 months. Most recently, Armstrong Savings Calculator was updated on November 2, 2026 and Contract Admin on November 3, 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.*