# Password 4 Pro vs Simple Calculator. +

The clearest difference is price: Password 4 Pro at Free against Simple Calculator. +'s $1.99. Password 4 Pro also leads on update cadence (fortnightly vs every 3 months). Simple Calculator. +'s advantage is rating (4.7 vs 2.5) and in-app purchases (none vs 3). On monetization model, device support and iOS requirement there is nothing between them.

Password 4 Pro is free to download; Simple Calculator. + costs $1.99 up front. Password 4 Pro sells 3 in-app purchases, starting at $0.99 per month. Simple Calculator. + asks for nothing beyond the download.

Simple Calculator. + holds the better App Store score, 4.7 against 2.5. That said, the two scores are not equally well evidenced: Simple Calculator. + has 147 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 44% of Password 4 Pro's written reviews are positive against 73% of Simple Calculator. +'s.

Password 4 Pro ships an update fortnightly, Simple Calculator. + every 3 months. The most recent releases landed on October 16, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Password 4 Pro | Simple Calculator. + |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [2.5 (2 ratings)](https://appshunter.io/ios/app/password-4-pro/id570632076/reviews) | **[4.7 (147 ratings)](https://appshunter.io/ios/app/simple-calculator-plus/id1324927779/reviews)** |
| Number of ratings | 2 | **147** |
| Positive reviews | 44.3% of reviews | **72.7% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 13 MB | 1 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gerinn LLC](https://appshunter.io/developer/537042831) | [tasser gyati](https://appshunter.io/developer/1324926550) |

## What reviewers say

### Password 4 Pro

[App page](https://appshunter.io/ios/app/password-4-pro/id570632076)

Securely manage all your passwords and sensitive information with military-level encryption. This app offers local backups, a secure notebook, and the ability to store images like credit cards. It features biometric unlock and an anti-screenshot function for enhanced privacy.

**Highlights:** Local data backup, Secure notebook, Save image information, Generate random passwords, Biometric unlock, Anti-screenshot

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Quarterly | $1.99 | per 3 months |
| Annual | $5.99 | per year |


### Simple Calculator. +

[App page](https://appshunter.io/ios/app/simple-calculator-plus/id1324927779)

This app offers a straightforward and dependable calculator for iPhone and iPad. It includes advanced features like tax calculation, cost/selling price/margin calculations, and memory operations. A free version is available to try before purchasing.

**Highlights:** 12-digit display, Tax calculation, Cost, selling price, and gross margin calculations, Memory operations, Grand total (GT), Percentage calculation

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

**In-app purchases:** none


## Frequently asked questions

### Is Password 4 Pro free?

Password 4 Pro is free to download, with in-app purchases available.

### Is Simple Calculator. + free?

Simple Calculator. + costs $1.99, with no in-app purchases.

### Which has better reviews, Password 4 Pro or Simple Calculator. +?

Simple Calculator. + is rated higher. Password 4 Pro averages 2.5 out of 5 from 2 ratings, while Simple Calculator. + averages 4.7 from 147 ratings.

### Do Password 4 Pro or Simple Calculator. + have ads?

Password 4 Pro shows ads; Simple Calculator. + does not.

### Which is updated more often, Password 4 Pro or Simple Calculator. +?

Password 4 Pro ships an update fortnightly, and Simple Calculator. + every 3 months. Most recently, Password 4 Pro was updated on October 16, 2026 and Simple Calculator. + on October 17, 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.*