# Janus Calculator vs Blast open source password mgr

The clearest difference is update cadence: Blast open source password mgr at weekly against Janus Calculator's every 45 months. Blast open source password mgr also leads on iOS requirement (17.6 vs 26.2). On price, ads, in-app purchases and device support there is nothing between them.

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

Janus Calculator ships an update every 45 months, Blast open source password mgr weekly. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Janus Calculator | Blast open source password mgr |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/janus-calculator/id373378721/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 45 months | **Weekly** |
| Monetization | Free | — |
| Size | 1 MB | 28 MB |
| Requires iOS | 26.2 | **17.6** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Geoffrey Domm](https://appshunter.io/developer/373378724) | [Nicola Delfino](https://appshunter.io/developer/1794383777) |

## What reviewers say

### Janus Calculator

[App page](https://appshunter.io/ios/app/janus-calculator/id373378721)

This app offers a unique dual-calculator interface, supporting both standard and Reverse Polish Notation. It features programmable functions, extensive scientific and financial tools, and includes physical constants and an advanced option calculator.

**Highlights:** Dual calculator interface (Standard and RPN), Programmable functions, Finance and scientific functions, Physical constants, Black-Scholes option calculator, Implied value calculation

**Features:** macOS Compatibility

**In-app purchases:** none


### Blast open source password mgr

[App page](https://appshunter.io/ios/app/blast-open-source-password-mgr/id6742346050)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Janus Calculator free?

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

### Is Blast open source password mgr free?

Blast open source password mgr is free to download, with no in-app purchases.

### Do Janus Calculator or Blast open source password mgr have ads?

Neither Janus Calculator nor Blast open source password mgr shows ads.

### Which is updated more often, Janus Calculator or Blast open source password mgr?

Janus Calculator ships an update every 45 months, and Blast open source password mgr weekly. Most recently, Janus Calculator was updated on October 21, 2026 and Blast open source password mgr on October 24, 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.*