# QmailClient vs C2 Password

The clearest difference is review sentiment: C2 Password at 61% against QmailClient's 0%. C2 Password also leads on rating (4.5 vs 2.0) and update cadence (monthly vs every 4 months). QmailClient's advantage is in-app purchases (none vs 3). On price, ads and iOS requirement there is nothing between them.

Both are free to download. C2 Password sells 3 in-app purchases, starting at $4.49 per year. QmailClient asks for nothing beyond the download.

C2 Password holds the better App Store score, 4.5 against 2.0. That said, the two scores are not equally well evidenced: C2 Password has 178 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 0% of QmailClient's written reviews are positive against 61% of C2 Password's.

QmailClient ships an update every 4 months, C2 Password monthly. The most recent releases landed on October 1, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | QmailClient | C2 Password |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (6 ratings)](https://appshunter.io/ios/app/qmailclient/id1087740187/reviews) | **[4.5 (178 ratings)](https://appshunter.io/ios/app/c2-password/id1566336292/reviews)** |
| Number of ratings | 6 | **178** |
| Positive reviews | 0.0% of reviews | **60.8% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 40 MB | 28 MB |
| Requires iOS | 16.0 | **15.2** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [QNAP Systems, Inc.](https://appshunter.io/developer/355826923) | [Synology Inc.](https://appshunter.io/developer/321493109) |

## What reviewers say

### QmailClient

[App page](https://appshunter.io/ios/app/qmailclient/id1087740187)

Access and manage all your email accounts from your mobile device. Browse, compose, reply, and organize emails stored on your QNAP NAS, even offline. Attach photos directly from your phone to emails.

**Highlights:** Manage multiple email accounts, Browse emails from QNAP NAS, Attach photos to emails, Download attachments for offline reading, Read, reply, forward, and delete emails, Offline mail reading capability

**In-app purchases:** none


### C2 Password

[App page](https://appshunter.io/ios/app/c2-password/id1566336292)

Securely store, sync, and safeguard your passwords and personal information across unlimited devices. Access your credentials from anywhere via web, browser extension, or mobile app. All data is encrypted before leaving your device for maximum privacy.

**Highlights:** Secure password storage, Unlimited device syncing, Cross-platform access (web, extension, mobile), End-to-end encryption, Autofill credentials

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Plan (1 Year) | $4.49 | per year |
| Plus Plan (1 Year) | $4.99 | per year |
| Plus Plan (1 Year) | $5.49 | per year |


## Frequently asked questions

### Is QmailClient free?

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

### Is C2 Password free?

C2 Password is free to download, with in-app purchases available.

### Which has better reviews, QmailClient or C2 Password?

C2 Password is rated higher. QmailClient averages 2.0 out of 5 from 6 ratings, while C2 Password averages 4.5 from 178 ratings.

### Do QmailClient or C2 Password have ads?

Neither QmailClient nor C2 Password shows ads.

### Which is updated more often, QmailClient or C2 Password?

QmailClient ships an update every 4 months, and C2 Password monthly. Most recently, QmailClient was updated on October 1, 2026 and C2 Password on October 8, 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.*