# Pass Secure vs ConstructionEquations

The clearest difference is price: Pass Secure at Free against ConstructionEquations's $0.99. Pass Secure also leads on in-app purchases (none vs 1) and update cadence (every 2 days vs every 2 months). On ads, device support and iOS requirement there is nothing between them.

Pass Secure is free to download; ConstructionEquations costs $0.99 up front. ConstructionEquations sells 1 one-off in-app purchase. Pass Secure asks for nothing beyond the download.

Pass Secure ships an update every 2 days, ConstructionEquations every 2 months. The most recent releases landed on September 8, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Pass Secure | ConstructionEquations |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/constructionequations/id6479582534/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 2 months |
| Monetization | — | Paid |
| Size | 0 MB | 8 MB |
| Requires iOS | 17.2 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TAK KAY LAU](https://appshunter.io/developer/1687925147) | [Robert J Sarvis Jr](https://appshunter.io/developer/1531648349) |

## What reviewers say

### Pass Secure

[App page](https://appshunter.io/ios/app/pass-secure-password-manager/id6479182542)

**Features:** macOS Compatibility

**In-app purchases:** none


### ConstructionEquations

[App page](https://appshunter.io/ios/app/constructionequations/id6479582534)

Access essential construction equations with clear explanations. This utility app simplifies complex formulas for better comprehension and application in the field.

**Highlights:** Common construction equations, Equation descriptions, Easy access reference, Formula comprehension aid

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Advanced Equations | $0.99 | one-time |


## Frequently asked questions

### Is Pass Secure free?

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

### Is ConstructionEquations free?

ConstructionEquations costs $0.99, and also offers in-app purchases.

### Do Pass Secure or ConstructionEquations have ads?

Neither Pass Secure nor ConstructionEquations shows ads.

### Which is updated more often, Pass Secure or ConstructionEquations?

Pass Secure ships an update every 2 days, and ConstructionEquations every 2 months. Most recently, Pass Secure was updated on September 8, 2026 and ConstructionEquations on September 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.*