Timer 555 Calculator vs Electrical Series Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Timer 555 Calculator
Calculate monostable and astable circuits for electronics projects. Determine pulse width and frequency, find component combinations, and save/upload data. Supports multiple languages.
- Monostable circuit pulse width calculation
- Astable circuit frequency calculation
- Component combination finder
- Save component values to CSV
- Upload CSV via AirDrop/iCloud Drive
- Multi-language support
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This app is used to calculate monostable and astable circuit. Features * Calculate pulse width of monostable circuit * Calculate frequency of astable circuit * Find out combination of components making a desire pulse width in monostable circuit * Find out combination of components making a desire frequency in astable circuit * Saving component values in CSV file * Upload generated CSV files via AirDrop or iCloud Drive * Support English, German, French, Italian, Spanish, Portuguese, Japanese, Korean, Russian
Electrical Series Calculator
This application simplifies electrical series calculations for resistance, inductance, and capacitance. It supports multiple units for flexible input and output, making complex computations quick and effortless for users.
- Resistance series calculation
- Inductance series calculation
- Capacitance series calculation
- Supports multiple units (Ohms, KiloOhms, Farads, etc.)
- User-friendly interface
- Calculations for series circuits
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Simplify Your Electrical Series Calculations 1. Resistance Series Calculator 2. Inductance Series Calculator 3. Capacitance Series Calculator With a user-friendly interface, our app makes complex calculations quick and effortless. Features: Resistance Calculator: Input resistance values in Ohms or KiloOhms, and instantly view results in your chosen unit. Capacitance Calculator: Seamlessly calculate series capacitance using values in Farads, milli-Farads, micro-Farads, nano-Farads, or pico-Farads. Inductance Calculator: Tackle inductance calculations with ease for series circuits. Why Choose This App? Supports multiple units for flexible inputs and outputs Fully compatible with iPhones , iPads and Mac.
Screenshots
Verdict
The clearest difference is rating: Electrical Series Calculator at 4.5 against Timer 555 Calculator's 3.9. Electrical Series Calculator also leads on in-app purchases (none vs 1). Timer 555 Calculator's advantage is ads (none vs shown) and update cadence (every 3 months vs every 8 months). On price, ratings volume 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
Both are free to download. Timer 555 Calculator sells 1 one-off in-app purchase. Electrical Series Calculator asks for nothing beyond the download.
Electrical Series Calculator holds the better App Store score, 4.5 against 3.9. Both are backed by a comparable volume of ratings — 8 and 13 respectively.
Timer 555 Calculator ships an update every 3 months, Electrical Series Calculator every 8 months. The most recent releases landed on October 21, 2026 and October 28, 2026 respectively.
| Parameter | Timer 555 Calculator | Electrical Series Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (8 ratings) | 4.5 (13 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 8 | 13 — better |
| Update frequency | Every 3 months — better | Every 8 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.2 — better | 17.6 |
| Further details — not scored | ||
| Size | 3 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Siu Yuen Ho | V PUGAZHENTHI |
Customer experience
Timer 555 Calculator
Electrical Series Calculator
In-app purchases
Timer 555 Calculator
- Unlock Pro feature$0.99
Electrical Series Calculator
No in-app purchases
Questions
Is Timer 555 Calculator free?
Is Electrical Series Calculator free?
Which has better reviews, Timer 555 Calculator or Electrical Series Calculator?
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