# Rocky Mountain CU Mobile vs First Interstate Debit Manager

The clearest difference is review sentiment: Rocky Mountain CU Mobile at 62% against First Interstate Debit Manager's 0%. Rocky Mountain CU Mobile also leads on rating (4.8 vs 1.8) and ratings volume (2.4K vs 23). 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.

Rocky Mountain CU Mobile holds the better App Store score, 4.8 against 1.8. That said, the two scores are not equally well evidenced: Rocky Mountain CU Mobile has 2.4K ratings behind it against 23, so its average is the more settled of the two. Written reviews point the same way: 62% of Rocky Mountain CU Mobile's written reviews are positive against 0% of First Interstate Debit Manager's.

Rocky Mountain CU Mobile ships an update monthly, First Interstate Debit Manager every 5 months. The most recent releases landed on September 24, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Rocky Mountain CU Mobile | First Interstate Debit Manager |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (2.4K ratings)](https://appshunter.io/ios/app/rocky-mountain-cu-mobile/id493368121/reviews)** | [1.8 (23 ratings)](https://appshunter.io/ios/app/first-interstate-debit-manager/id1572503797/reviews) |
| Number of ratings | **2.4K** | 23 |
| Positive reviews | **61.5% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 months |
| Monetization | Free | Free |
| Size | 68 MB | 90 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rocky Mountain Credit Union](https://appshunter.io/developer/493368124) | [First Interstate Bank](https://appshunter.io/developer/566470806) |

## What reviewers say

### Rocky Mountain CU Mobile

[App page](https://appshunter.io/ios/app/rocky-mountain-cu-mobile/id493368121)

Manage your finances conveniently with this mobile banking app. It offers secure sign-in options, quick balance checks, fund transfers, bill payments, and check deposits. The app also includes accessibility features for diverse users.

**Highlights:** Secure sign-in with Touch ID/Face ID, Quick Balance view, Fund transfers, Bill payments, Mobile check deposit, Account statements, Neurodiverse accessibility features

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 User-friendly interface
- 🚀 Convenient mobile banking
- 💰 Generous deposit incentives
- 🤝 Helpful and friendly staff

**What reviewers complain about**

- 🐛 Unreliable mobile deposit feature
- ⏱️ Slow and unresponsive app
- 🔒 Overly complex security measures
- 🕰️ Frequent and disruptive app updates

**Reported bugs**

- App crashes on launch
- Login issues and credential verification problems
- Inability to use mobile deposit feature

**Requested features**

- Ability to access multiple accounts with one login
- Improved mobile deposit functionality
- Weekend banking hours
- Seamless integration with personal finance tools


### First Interstate Debit Manager

[App page](https://appshunter.io/ios/app/first-interstate-debit-manager/id1572503797)

Manage your debit card with customizable controls for spending limits, locations, and transaction types. Instantly turn your card on or off to prevent unauthorized use and receive real-time alerts for all activity.

**Highlights:** Define spending limits, Set location-based transaction controls, Monitor specific merchant categories, Enable/disable card instantly, Receive real-time transaction alerts, Check account balances, Locate ATMs

**Features:** Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Rocky Mountain CU Mobile free?

Rocky Mountain CU Mobile is free to download, with no in-app purchases.

### Is First Interstate Debit Manager free?

First Interstate Debit Manager is free to download, with no in-app purchases.

### Which has better reviews, Rocky Mountain CU Mobile or First Interstate Debit Manager?

Rocky Mountain CU Mobile is rated higher. Rocky Mountain CU Mobile averages 4.8 out of 5 from 2.4K ratings, while First Interstate Debit Manager averages 1.8 from 23 ratings.

### Do Rocky Mountain CU Mobile or First Interstate Debit Manager have ads?

Neither Rocky Mountain CU Mobile nor First Interstate Debit Manager shows ads.

### Which is updated more often, Rocky Mountain CU Mobile or First Interstate Debit Manager?

Rocky Mountain CU Mobile ships an update monthly, and First Interstate Debit Manager every 5 months. Most recently, Rocky Mountain CU Mobile was updated on September 24, 2026 and First Interstate Debit Manager on June 1, 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.*