# Comsign Authenticator vs Calcly Calculator

The clearest difference is in-app purchases: Comsign Authenticator at none against Calcly Calculator's 1. Calcly Calculator's advantage is update cadence (every 2 days vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Calcly Calculator sells 1 one-off in-app purchase. Comsign Authenticator asks for nothing beyond the download.

Comsign Authenticator ships an update every 4 months, Calcly Calculator every 2 days. The most recent releases landed on September 23, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Comsign Authenticator | Calcly Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 days** |
| Size | 39 MB | 41 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Comsign Ltd.](https://appshunter.io/developer/1438606872) | [Mordechay Gorin](https://appshunter.io/developer/6801239557) |

## What reviewers say

### Comsign Authenticator

[App page](https://appshunter.io/ios/app/comsign-authenticator/id1438606873)

**Features:** macOS Compatibility

**In-app purchases:** none


### Calcly Calculator

[App page](https://appshunter.io/ios/app/calcly-calculator/id6801797287)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calcly Pro | $1.99 | one-time |


## Frequently asked questions

### Is Comsign Authenticator free?

Comsign Authenticator is free to download, with no in-app purchases.

### Is Calcly Calculator free?

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

### Do Comsign Authenticator or Calcly Calculator have ads?

Neither Comsign Authenticator nor Calcly Calculator shows ads.

### Which is updated more often, Comsign Authenticator or Calcly Calculator?

Comsign Authenticator ships an update every 4 months, and Calcly Calculator every 2 days. Most recently, Comsign Authenticator was updated on September 23, 2026 and Calcly Calculator on September 30, 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.*