# TheoMeter vs Holler

The clearest difference is in-app purchases: TheoMeter at none against Holler's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Holler sells 1 one-off in-app purchase. TheoMeter asks for nothing beyond the download.

## The numbers

| Metric | TheoMeter | Holler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/holler-microphone-for-sonos/id6810526797/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Monetization | — | Free with in-app purchases |
| Size | 2 MB | 5 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Frankie Wellman](https://appshunter.io/developer/6780719441) | [Task One LLC](https://appshunter.io/developer/6809324060) |

## What reviewers say

### TheoMeter

[App page](https://appshunter.io/ios/app/theometer/id6790203603)

**Features:** macOS Compatibility

**In-app purchases:** none


### Holler

[App page](https://appshunter.io/ios/app/holler-microphone-for-sonos/id6810526797)

Transform your Sonos speakers into a whole-home intercom system. Broadcast live messages, record and send announcements, or play pre-made sounds across one room or many. It's designed for privacy, working locally on your Wi-Fi without accounts or tracking.

**Highlights:** Whole-home intercom for Sonos, Live microphone broadcasts, Record and send announcements, Play pre-made sounds, Selectable room grouping, Restores previous Sonos settings, Local and private operation

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Holler Pro | $2.99 | one-time |


## Frequently asked questions

### Is TheoMeter free?

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

### Is Holler free?

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

### Do TheoMeter or Holler have ads?

Neither TheoMeter nor Holler shows ads.

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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.*