# CI Calculator vs Metro Bank Authenticator

The clearest difference is update cadence: CI Calculator at daily against Metro Bank Authenticator's every 12 months. 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.

CI Calculator ships an update daily, Metro Bank Authenticator every 12 months. The most recent releases landed on October 29, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | CI Calculator | Metro Bank Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 12 months |
| Monetization | — | Free |
| Size | 8 MB | 12 MB |
| Requires iOS | **13.2** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Chipsy Information Technology Services](https://appshunter.io/developer/1020887696) | [MetroBank](https://appshunter.io/developer/854725531) |

## What reviewers say

### CI Calculator

[App page](https://appshunter.io/ios/app/ci-calculator/id1520169419)

**In-app purchases:** none


### Metro Bank Authenticator

[App page](https://appshunter.io/ios/app/metro-bank-authenticator/id1524446800)

This app provides a secure and convenient way for Metro Bank Business customers to authenticate online banking actions. It replaces the need for a physical security device, allowing for quick verification of logins, payments, and account changes directly from your mobile.

**Highlights:** Authenticate online banking actions, Secure login verification, Approve new payment setups, Confirm account changes, Replaces physical security devices, Convenient mobile authentication

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

**In-app purchases:** none


## Frequently asked questions

### Is CI Calculator free?

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

### Is Metro Bank Authenticator free?

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

### Do CI Calculator or Metro Bank Authenticator have ads?

Neither CI Calculator nor Metro Bank Authenticator shows ads.

### Which is updated more often, CI Calculator or Metro Bank Authenticator?

CI Calculator ships an update daily, and Metro Bank Authenticator every 12 months. Most recently, CI Calculator was updated on October 29, 2026 and Metro Bank Authenticator on November 3, 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.*