# CAESAR2GO vs BTD ALARM

The clearest difference is iOS requirement: BTD ALARM at 13.4 against CAESAR2GO's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CAESAR2GO ships an update every 7 months, BTD ALARM every 4 months. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | CAESAR2GO | BTD ALARM |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 4 months** |
| Monetization | Free | — |
| Size | 21 MB | 103 MB |
| Requires iOS | 15.6 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CASERIS GmbH](https://appshunter.io/developer/918113986) | [BTD Service GmbH](https://appshunter.io/developer/1458349691) |

## What reviewers say

### CAESAR2GO

[App page](https://appshunter.io/ios/app/caesar2go/id918113987)

Connect to your company's communication infrastructure from any mobile device. Access features like presence, chat, contact center, softphone, and company directories. Manage contacts, send messages, and make calls using your business number.

**Highlights:** Mobile access to company communication infrastructure, Presence and chat functionalities, Contact Center agent features, Softphone operation with encrypted transmission, Integration with company address books and CRMs, Follow Me and One Number support, Contact management and communication tools

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

**In-app purchases:** none


### BTD ALARM

[App page](https://appshunter.io/ios/app/btd-alarm/id1458349692)

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

**In-app purchases:** none


## Frequently asked questions

### Is CAESAR2GO free?

CAESAR2GO is free to download, with no in-app purchases.

### Is BTD ALARM free?

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

### Do CAESAR2GO or BTD ALARM have ads?

Neither CAESAR2GO nor BTD ALARM shows ads.

### Which is updated more often, CAESAR2GO or BTD ALARM?

CAESAR2GO ships an update every 7 months, and BTD ALARM every 4 months. Most recently, CAESAR2GO was updated on November 1, 2026 and BTD ALARM on October 29, 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.*