# Co vs Massdar

The clearest difference is update cadence: Massdar at daily against Co's every 4 months. Massdar also leads on iOS requirement (11.0 vs 16). 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.

Co ships an update every 4 months, Massdar daily. The most recent releases landed on October 20, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Co | Massdar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.9K ratings)](https://appshunter.io/ios/app/co-optima-mobile/id908778730/reviews)** | — |
| Number of ratings | **1.9K** | — |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Daily** |
| Monetization | Free | — |
| Size | 27 MB | 39 MB |
| Requires iOS | 16 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Barbados Public Workers' Co-operative Credit Union Limited](https://appshunter.io/developer/908778733) | [Natija Sari LLC](https://appshunter.io/developer/1651801424) |

## What reviewers say

### Co

[App page](https://appshunter.io/ios/app/co-optima-mobile/id908778730)

Manage your finances with a sleek, secure digital banking app. Control your cards, set travel alerts, and receive real-time notifications for all account activity. Enjoy fast transfers, bill payments, and 24/7 access with enhanced security features.

**Highlights:** Card Controls (lock/unlock), Travel Notifications, Real-Time Account Alerts, Fast Transfers & Bill Payments, Biometric & Two-Factor Authentication, 24/7 Account Access

**In-app purchases:** none

**What reviewers like**

- 👍 User-friendly app
- 🚀 Convenient to use
- 🔒 Added security features

**What reviewers complain about**

- 🐛 Bugs and glitches after updates
- ⚠️ Frequent password changes required
- 🔒 Inconsistent Face ID
- 🤔 Confusing navigation

**Reported bugs**

- Randomly prompts to enroll as new user
- Unable to make RTP transfers
- Unable to access account after update

**Requested features**

- View account number in app
- Add payees for frequent transfers
- Transfer money with email or phone number


### Massdar

[App page](https://appshunter.io/ios/app/massdar/id6455427336)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Co free?

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

### Is Massdar free?

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

### Do Co or Massdar have ads?

Neither Co nor Massdar shows ads.

### Which is updated more often, Co or Massdar?

Co ships an update every 4 months, and Massdar daily. Most recently, Co was updated on October 20, 2026 and Massdar on October 9, 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.*