555 Calc vs BeaconMagic
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
555 Calc
This utility app helps engineers and hobbyists calculate resistor values for circuits using the Timer IC 555. Simply input frequency, duty ratio, and capacitor values to get the required resistor outputs.
- Calculate resistor values
- Input frequency
- Input duty ratio
- Input capacitor value
- Timer IC 555 circuit design
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This App calculates registors value, when designing the circuit using Timer IC 555. How to (1) Input Frequency value. (2) Input Duty Ratio. (3) Input C1 Value. (4) Touch ‘Calculate’ button. (5) Registors value will be displayed. Note. * Set Duty Ratio to 50 ~ 99. * If you set Duty Ratio to 50, R1 value will be set to 0.
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 review sentiment: 555 Calc at 50% against BeaconMagic's 0%. 555 Calc also leads on price (Free vs $1.99) and iOS requirement (11.0 vs 26.0). BeaconMagic's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 20 months). On 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
555 Calc is free to download; BeaconMagic costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
555 Calc ships an update every 20 months, BeaconMagic every 3 weeks. The most recent releases landed on June 1, 2026 and September 4, 2026 respectively.
| Parameter | 555 Calc | BeaconMagic |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 4.0 (3 ratings) — better | — |
| Positive reviews | 50.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 3 — better | — |
| Update frequency | Every 20 months | Every 3 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac, Apple Watch — better |
| Requires iOS | 11.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 18 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Jibiki Works | Vlad Alexa |
Customer experience
555 Calc
BeaconMagic
In-app purchases
555 Calc
No in-app purchases
BeaconMagic
No in-app purchases
