# Olarm vs Calculator VAT

The clearest difference is review sentiment: Calculator VAT at 100% against Olarm's 54%. Olarm's advantage is price (Free vs $0.99) and update cadence (every 3 weeks vs every 3 months). On ads, in-app purchases and device support there is nothing between them.

Olarm is free to download; Calculator VAT costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Olarm ships an update every 3 weeks, Calculator VAT every 3 months. Both last shipped on October 21, 2026.

## The numbers

| Metric | Olarm | Calculator VAT |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[3.9 (32 ratings)](https://appshunter.io/ios/app/olarm/id1008427663/reviews)** | — |
| Number of ratings | **32** | — |
| Positive reviews | 54.2% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | **Free** | Paid |
| Size | 38 MB | 1 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Olarm (Pty) Ltd](https://appshunter.io/developer/1641993829) | [Ulrich Pade](https://appshunter.io/developer/1458091929) |

## What reviewers say

### Olarm

[App page](https://appshunter.io/ios/app/olarm/id1008427663)

Control and manage your home alarm system directly from your smartphone. This app allows you to arm, disarm, and monitor your system in real-time, receive notifications, and manage users. It also offers features like silent panic and gate control.

**Highlights:** Arm, Disarm, Sleep, Stay modes, Arming reminders, Real-time zone activity log, Silent Panic, Cancel Responder, User management, Gate and light control

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

**In-app purchases:** none


### Calculator VAT

[App page](https://appshunter.io/ios/app/calculator-vat/id1458091930)

Quickly calculate VAT, net price, tax, or price inclusive of tax. Supports any two input values to find the remaining two. Also handles general percentage and tip calculations with commercial rounding.

**Highlights:** Calculate VAT, net price, and tax, Handles price inclusive of tax, General percentage and tip calculator, Commercial rounding of results, Save VAT value for multiple calculations

**In-app purchases:** none


## Frequently asked questions

### Is Olarm free?

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

### Is Calculator VAT free?

Calculator VAT costs $0.99, with no in-app purchases.

### Do Olarm or Calculator VAT have ads?

Neither Olarm nor Calculator VAT shows ads.

### Which is updated more often, Olarm or Calculator VAT?

Olarm ships an update every 3 weeks, and Calculator VAT every 3 months. Most recently, Olarm was updated on October 21, 2026 and Calculator VAT on October 21, 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.*