# Calctan vs Secure Password Lock

Calctan and Secure Password Lock both sit at 4.5 stars, but that hides the real split: 87% of Secure Password Lock's written reviews are positive against 29% of Calctan's. Secure Password Lock also leads on in-app purchases (none vs 1) and ads (none vs shown). Calctan's advantage is price (Free vs $0.99) and ratings volume (61 vs 16). On rating and device support there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.5 for Calctan against 4.5 for Secure Password Lock. Both are backed by a comparable volume of ratings — 61 and 16 respectively. Written reviews are what separate them: 29% of Calctan's written reviews are positive against 87% of Secure Password Lock's.

Calctan ships an update every 3 months, Secure Password Lock every 2 weeks. The most recent releases landed on September 25, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Calctan | Secure Password Lock |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.5 (61 ratings)](https://appshunter.io/ios/app/calctan/id1445480535/reviews) | [4.5 (16 ratings)](https://appshunter.io/ios/app/secure-password-lock/id6449745506/reviews) |
| Number of ratings | **61** | 16 |
| Positive reviews | 28.6% of reviews | **87.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 11 MB | 18 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jorge Lozada](https://appshunter.io/developer/421852863) | [运强 翁](https://appshunter.io/developer/1071832931) |

## What reviewers say

### Calctan

[App page](https://appshunter.io/ios/app/calctan/id1445480535)

This sophisticated calculator app offers a minimalist design with advanced mathematical functions and extensive personalization options. It seamlessly syncs across devices and includes multitasking features for enhanced productivity.

**Highlights:** Intuitive minimalist design, 100+ customizable themes, 47 advanced mathematical functions, Automatic calculation history, iCloud sync across devices, Split Screen and Swipe Mode multitasking, Share calculations easily

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $9.99 | one-time |


### Secure Password Lock

[App page](https://appshunter.io/ios/app/secure-password-lock/id6449745506)

This application helps you securely store and manage all your passwords in one place. It offers various unlock methods for quick and safe access to your accounts, from social media to banking.

**Highlights:** Local password storage, Gesture app lock, Face and fingerprint unlock, Add pictures to passwords, Custom password categories, Category management

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

**In-app purchases:** none


## Frequently asked questions

### Is Calctan free?

Calctan is free to download, with in-app purchases available.

### Is Secure Password Lock free?

Secure Password Lock costs $0.99, with no in-app purchases.

### Which has better reviews, Calctan or Secure Password Lock?

Calctan and Secure Password Lock are both rated 4.5 out of 5 on the App Store, from 61 and 16 ratings respectively.

### Do Calctan or Secure Password Lock have ads?

Calctan shows ads; Secure Password Lock does not.

### Which is updated more often, Calctan or Secure Password Lock?

Calctan ships an update every 3 months, and Secure Password Lock every 2 weeks. Most recently, Calctan was updated on September 25, 2026 and Secure Password Lock on September 22, 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.*