# FirstSecurityBankMissoula vs Treasury Suite Authenticator

The clearest difference is update cadence: FirstSecurityBankMissoula at monthly against Treasury Suite Authenticator's every 15 months. FirstSecurityBankMissoula also leads on ratings volume (2.2K vs 1). Treasury Suite Authenticator's advantage is rating (5.0 vs 4.8). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Treasury Suite Authenticator holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: FirstSecurityBankMissoula has 2.2K ratings behind it against 1, so its average is the more settled of the two.

FirstSecurityBankMissoula ships an update monthly, Treasury Suite Authenticator every 15 months. The most recent releases landed on October 21, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | FirstSecurityBankMissoula | Treasury Suite Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (2.2K ratings)](https://appshunter.io/ios/app/firstsecuritybankmissoula/id6473804321/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/treasury-suite-authenticator/id6742110563/reviews)** |
| Number of ratings | **2.2K** | 1 |
| Positive reviews | 60.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 15 months |
| Monetization | Free | Free |
| Size | 199 MB | 4 MB |
| Requires iOS | 18.4 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Glacier Bank](https://appshunter.io/developer/533995512) | [First Interstate Bank](https://appshunter.io/developer/566470806) |

## What reviewers say

### FirstSecurityBankMissoula

[App page](https://appshunter.io/ios/app/firstsecuritybankmissoula/id6473804321)

Manage your personal and business finances on the go. This app offers secure access to your accounts, allowing you to transfer funds, pay bills, deposit checks, and monitor transactions. Business users can also manage payments, initiate transfers, and integrate with accounting software.

**Highlights:** Account management, Bill pay, Mobile check deposit, Debit card management, Business payment management, Accounting software integration

**Features:** Apple Wallet

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Smooth performance
- 💡 Great features
- 🔒 Reliable security

**What reviewers complain about**

- 🐛 Bugs after recent update
- 🔄 Prefer older version

**Reported bugs**

- Login issues after update
- Frequent app crashes

**Requested features**

- Automatic transaction listing
- Dark mode option


### Treasury Suite Authenticator

[App page](https://appshunter.io/ios/app/treasury-suite-authenticator/id6742110563)

This security token app is exclusively for current users of the Treasury Banking Suite service. It provides an authentication solution for accessing your accounts. For more details, please reach out to First Interstate Bank.

**Highlights:** Security token functionality, For Treasury Banking Suite users, Authentication solution, Exclusive access

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is FirstSecurityBankMissoula free?

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

### Is Treasury Suite Authenticator free?

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

### Which has better reviews, FirstSecurityBankMissoula or Treasury Suite Authenticator?

Treasury Suite Authenticator is rated higher. FirstSecurityBankMissoula averages 4.8 out of 5 from 2.2K ratings, while Treasury Suite Authenticator averages 5.0 from 1 ratings.

### Do FirstSecurityBankMissoula or Treasury Suite Authenticator have ads?

Neither FirstSecurityBankMissoula nor Treasury Suite Authenticator shows ads.

### Which is updated more often, FirstSecurityBankMissoula or Treasury Suite Authenticator?

FirstSecurityBankMissoula ships an update monthly, and Treasury Suite Authenticator every 15 months. Most recently, FirstSecurityBankMissoula was updated on October 21, 2026 and Treasury Suite Authenticator on October 18, 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.*