Three (Rule of 3 Calculator) vs BeaconMagic
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Three (Rule of 3 Calculator)
This utility app helps users perform quick calculations for everyday scenarios like fuel consumption, currency conversion, and grocery shopping. It features a simple interface with options for result display customization and supports dark/light modes.
- Rule of 3 calculations
- Currency conversion
- Measurement conversions
- Grocery shopping calculations
- Simple and modern interface
- Result display customization
- Dark/light mode support
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For example: If my car consumes an average 8.8 litres of gas per 100 kilometers, a 350 kilometer trip will consume 30.8 litres (and therefore $61.6 if gas price is $2/litre)... ...or a fast currency converter: if 1 Euro is about 1.09 US dollars, 33.9 EUR is 36,92 USD. Three can also be used for measurements, image sizes, grocery shopping and more. As simple and trivial it is, the rule is used daily in practical arithmetics. The application has a simple and modern interface to perform fast calculations and includes some basic options to facilitate the displaying results (thousands separator, decimal digits) including color customization in dark/light modes.
BeaconMagic
This app provides a comprehensive toolkit for low-energy Bluetooth devices. It allows you to discover nearby devices, connect to them, and access their services and data. You can also configure your device to act as an iBeacon and monitor the real-time proximity of multiple devices.
- Discover nearby Bluetooth devices
- Connect to devices and access data
- Emulate iBeacon functionality
- Monitor device proximity in real-time
- View device services
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The most complete low energy bluetooth toolkit out there, see devices nearby, connect and get services and data BeaconMagic knows all major iBeacon ids and can turn your device into either of them, see how far apart your different devices are from each other as you move them real time ! It features the following sections: * Monitor * Emitter
Screenshots
Verdict
The clearest difference is price: Three (Rule of 3 Calculator) at Free against BeaconMagic's $1.99. Three (Rule of 3 Calculator) also leads on iOS requirement (15.0 vs 26.0). BeaconMagic's advantage is update cadence (every 3 weeks vs every 3 months). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Three (Rule of 3 Calculator) is free to download; BeaconMagic costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Three (Rule of 3 Calculator) ships an update every 3 months, BeaconMagic every 3 weeks. The most recent releases landed on September 10, 2026 and September 4, 2026 respectively.
| Parameter | Three (Rule of 3 Calculator) | BeaconMagic |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac, Apple Watch — better |
| Requires iOS | 15.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 1 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Pericles Maravelakis | Vlad Alexa |
Customer experience
Three (Rule of 3 Calculator)
BeaconMagic
In-app purchases
Three (Rule of 3 Calculator)
No in-app purchases
BeaconMagic
No in-app purchases
Questions
Is Three (Rule of 3 Calculator) free?
Is BeaconMagic free?
Do Three (Rule of 3 Calculator) or BeaconMagic have ads?
Which is updated more often, Three (Rule of 3 Calculator) or BeaconMagic?
Other comparisons
