# Holler

> Mobile chat and feed application for Opterus users with administrator-controlled permissions. (iPhone/iPad app by Opterus Inc..)

- Source: https://appshunter.io/ios/app/holler/id1393193920 (this page in markdown: same URL + `.md`)
- Developer: [Opterus Inc.](https://appshunter.io/developer/991650038)
- Category: Business, Productivity
- Price: Free
- Rating: 3.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 12.0 · 29 MB
- Languages: American English, Croatian, Czech, Danish, Dutch, Canadian French, German (Germany), Greek, Hungarian, Italian and 12 more
- Released: 2018-08-03
- Data updated: 2026-07-07
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/holler/id1393193920/reviews.md

## What is Holler?

Holler allows Opterus users to chat on their mobile devices and share pictures and status updates in a feed.  People can post, like, comment and reply to feed posts.  People can also create one-on-one as well as group chats, name their chats, add people, and chose to leave a chat.  Your Opterus Administrator can also set permissions to decide who can use the chat app.

Note that only active Opterus users with permission can login to Holler and you need to contact Opterus to activate Holler before you will be able to login.


***** Note: If your company does not use Store Ops-Center you cannot use this application. *****

## Key features

- Mobile chat functionality
- Feed for status updates and posts
- Post, like, comment, and reply to feed items
- One-on-one and group chats
- Customizable chat names
- Add and remove chat participants
- Administrator-controlled permissions


## Frequently asked questions about Holler

### What is Holler?

Holler is a mobile application designed for Opterus users to facilitate communication through chat and a social feed. It allows for posting updates, liking, commenting, and engaging in both individual and group conversations.

### Who can use Holler?

Only active Opterus users with specific permissions granted by their administrator can log in and use Holler. You need to contact Opterus to activate the application before you can access it.

### Does Holler require an Opterus account?

Yes, Holler is exclusively for Opterus users. If your company does not use Store Ops-Center, you will not be able to use this application.

### Can I create group chats in Holler?

Yes, Holler supports the creation of group chats. You can name these chats, add participants, and choose to leave them when necessary.

### How is access to Holler managed?

Your Opterus Administrator has the ability to set permissions, determining who can use the chat app. This ensures controlled access for your organization.

### What devices does Holler support?

Holler is available for iPhone, iPad, and iPod devices. It is designed to function across these Apple mobile platforms.

### How often is Holler updated?

The latest version of Holler is 2.6.7, which was last updated on April 1, 2025. This indicates a relatively recent update cycle for the application.

### What is the user rating for Holler?

Holler has a rating of 3.0 stars based on 1 review. This suggests a mixed reception from its current user base.

## Version history (last 5 releases)

### 2.6.7 — 2025-04-01

* Bug fixes and performance enhancements

### 2.6.6 — 2023-05-09

* Fix possible memory leak when uploading images
* Stability improvements

### 2.6.5 — 2023-03-27

* Multi Image uploads

* Bug fixes and other improvements

### 2.6.2 — 2022-11-21

* Fix credentials issue that caused a daily login to be necessary

### 2.6.1 — 2022-06-29

* Bitmoji support!

## Apps similar to Holler

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Otto by Oxford](https://appshunter.io/ios/app/otto-by-oxford/id1559448774) | — | Free | Business |

## More apps by Opterus Inc.

- [OPSCENTER](https://appshunter.io/ios/app/opscenter/id991650039)
- [OPSCENTER NEW](https://appshunter.io/ios/app/opscenter-new/id6749003920)

All apps by Opterus Inc.: https://appshunter.io/developer/991650038

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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 2026-07-07.*