# Unibox – Email by sender — Conversations & attachments

> Email client that groups messages by sender for simplified inbox management. (iPhone/iPad app by eightloops GmbH.)

- Source: https://appshunter.io/ios/app/unibox-email-by-sender/id933879046 (this page in markdown: same URL + `.md`)
- Developer: [eightloops GmbH](https://appshunter.io/developer/291579102)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Rating: 4.10/5 from 237 App Store ratings · 161 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 28 MB
- Languages: American English, Catalan, Danish, French (France), German (Germany), Hungarian, Italian, Polish, European Portuguese, Russian and 2 more
- Released: 2015-12-08
- Data updated: 2026-09-19
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/unibox-email-by-sender/id933879046/reviews.md

## What is Unibox?

Unibox groups your emails by sender. Find past messages, conversations and attachments under the relevant contact.

See what you've written to each other.
Under each contact, you'll see both received and sent emails. Whether you're arranging a meeting, following up with a question or sharing new documents, your correspondence stays together even when the subject changes.

Find the file without first searching for the email.
Unibox shows you all attachments from a sender in one place. Find documents and photos from different messages without first tracking down the email they came with.

Clean up without opening every email.
Delete or move all emails from the same sender together. This is useful for newsletters, automated confirmations and other regular emails. You can still manage individual emails separately.

Reply with your previous emails in view.
Read and write in the same window. While composing a reply, you can refer to earlier messages without switching between separate windows.

A conversation stays together, even when several people are involved.
Open a conversation with multiple participants from your email history. You'll see the messages in that conversation separately from other topics.

Keep multiple inboxes in view.
Unibox brings emails from all your accounts together in one view. See your personal and work email accounts in the same place.

Use your existing email accounts.
Unibox supports IMAP accounts, including iCloud, Gmail (with an app password), Outlook.com and Microsoft 365, as well as accounts on your own mail servers. Exchange accounts can be used if IMAP is enabled.

Connect directly to your email provider.
When sending and receiving email, Unibox connects directly to your email provider. Your emails are not routed through Unibox servers. Login credentials are stored locally on your device.

Privacy:
https://www.uniboxapp.com/privacy

Terms of Use (EULA):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Group emails by sender
- View all messages and attachments per contact
- Swipe to delete multiple emails from a sender
- Clean inbox organization
- Supports IMAP email providers

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Unibox Pro | $9.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Unibox Pro | $8.99 | one-time |


## What do users think of Unibox?

Overall sentiment: neutral

**Pros**

- 🚀 Organized by sender
- 👍 Simple and intuitive interface
- 📂 Attachments view
- 🔒 Respects privacy
- 💡 Innovative concept

**Cons**

- 🐛 Bugs and glitches
- ⏱️ Slow sync/refresh
- 🚫 Lacks features (forwarding, drafts, etc.)
- 🔒 No push notifications
- 💰 Expensive for some users

**Commonly reported bugs**

- Authentication issues
- Scrolling bugs
- Deleted emails reappearing
- Unreliable background sync

**Most requested features**

- Dark mode
- Swipe to move all emails from a contact
- Select and delete multiple emails
- Integration with other apps (Evernote, Fantastical, etc.)
- Touch ID/Face ID support

## Recent user reviews (10 of 161)

All indexed reviews: https://appshunter.io/ios/app/unibox-email-by-sender/id933879046/reviews.md

### 3/5 — Orphaned: no reply from tech support; wouldn’t launch until I uninstalled/reinstalled

*2026-01-27, version 1.7*

UPDATE: Deleting the app and all of its local data, then reinstalling fixed the problem on both iOS and iPadOS. 

The iPad version doesn’t know the keyboard key locations in landscape mode any more, but still does in Portrait. 
——

This has been such a great app since I bought it for all my platforms years ago.  Unfortunately, the iPad/iPhone versions stick on the splash screen then timeout and exit after 5 seconds now.  The macOS version continues to work like a champ. Hoping the developer reads this and fixes whatever is preventing the iOS version from launching—they haven’t responded to any emails to their tech support. Perhaps it calls home to a server which is no longer online?

### 4/5 — I wish they continue updating this app

*2025-11-09, version 1.7*

Excellent app, unfortunately not updated for years.

### 2/5 — A sad day

*2025-05-15, version 1.7*

This app was great on release I could control mail clutter and read very easily.now this app no longer works..All the good apps are dis’s appearing 😢I miss the app😢😢

### 1/5 — Great app but no longer works

*2025-02-11, version 1.7*

Loved the app but it stopped working. Reached out to developer or support but no response.

### 1/5 — Gmail does not work

*2025-01-31, version 1.7*

Seems to be not updated to the latest gmail. Says “this app is blocked” when trying to login to google

### 3/5 — App stopped syncing with Gmail

*2025-01-13, version 1.7*

Hello, it is a great application, I used to rely on for my Gmail account. However, lately it stopped syncing with Gmail. Will there be any solution to this problem?

### 5/5 — PLEASE DONT ABANDON — I’m still loving it

*2025-01-08*

I’ve been using Unibox for years, it’s still my one and only email client for all of my accounts. It’s simple and powerful. The person centric email threading modernizes emailing to be more like standard messaging. Under the hood the view option, to select a person, and just see all the attachments is an incredible tool. 

My favorite tip to anyone:
Buy Unibox even to use for this one trick. Rapidly delete hundreds of spam emails or junk by trashing or junking all the messages from one sender in one step. Or select multiple senders and delete thousands at a time.

Whatever it lacks (in support of specialized features or a given email provider) can be accessed visiting the providers site, such as gmail. So I don’t take a star off for the simple interface or any lack of features. 

Plain and simple, Unibox has every feature you’ll absolutely need, and nothing at all that is less necessary which is why I love it. I also love that it’s footprint on my Mac Application support folder is much smaller than Mac’s mail.

### 1/5 — Used to be great but it’s abandoned

*2024-12-15, version 1.7*

Unfortunately this app seems to be abandonware. It does not support 2FA which makes it pretty useless for Gmail now (the desktop version still works).

### 1/5 — A sad day

*2024-11-26, version 1.7*

This app was great on release I could control mail clutter and read very easily.now this app no longer works..All the good apps are dis’s appearing 😢

### 1/5 — Abandoned App?

*2024-04-22, version 1.7*

App has stopped sending - last update was 3 years ago - is it still supported by its developers?

## Frequently asked questions about Unibox

### What does Unibox do?

Unibox is an email application designed to simplify inbox management by grouping all your emails by sender. This allows you to easily see all conversations and attachments exchanged with a specific person in one consolidated view, making it much easier to keep your inbox clean and organized.

### How does Unibox help clean up my inbox?

Unibox helps clean your inbox by allowing you to quickly identify and delete multiple emails from the same sender with a simple swipe gesture. This is particularly useful for unsubscribing from or clearing out newsletters and notifications that you no longer need.

### What email providers does Unibox support?

Unibox is compatible with all email providers that support the IMAP protocol. This includes popular services like Gmail, Hotmail, Outlook.com, Live.com, Yahoo, Office365, and Exchange servers with IMAP enabled, as well as many self-hosted servers.

### Is Unibox available on other platforms?

Yes, in addition to its mobile application, Unibox is also available for Mac users. This allows for a consistent email management experience across different devices if you use both a mobile device and a Mac.

### What is the cost of Unibox?

The application is free to download and use, but it does include in-app purchases. This suggests that while core functionality is available for free, certain advanced features or customization options may require a purchase.

## Version history (last 5 releases)

### 1.20.4 — 2026-09-18

• The navigation bar no longer overlaps the status bar on iOS 27.
• Gmail setup now guides you through checking 2-Step Verification and creating an app password in separate steps.
• iCloud setup now shows the appropriate Apple instructions, explains the two-factor authentication requirement, and guides you to create an app-specific password.

### 1.20.3 — 2026-09-17

• Fixed an issue that could reset your default signature.

### 1.20.2 — 2026-09-13

- Improved automatic detection of Microsoft 365 accounts with custom domains.
- Fixed the app name displayed on the Home Screen.

### 1.20.1 — 2026-09-09

- Restored the options to create, add to an existing contact, and share contacts from the contact details view.

### 1.20.0 — 2026-09-07

- Signature selection
- Bugfixes and improvements

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## Related topics

[unibox](https://appshunter.io/ios/topics/unibox) · [unibox pro](https://appshunter.io/ios/topics/unibox-pro)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-19.*