Electrikit vs Opamp tools
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Electrikit
This app provides a comprehensive suite of calculators for power electronics. It assists electronics enthusiasts, students, and professionals in solving complex circuit calculations with an intuitive interface. Essential for anyone working with electronic circuits and devices.
- Power Calculators
- Delta-Wye Transformation
- AWG Size Calculator
- Voltage Drop Calculator
- Resistor Code Calculator
- LED Info
- Dark/Light Theme
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Electrikit is useful to a wide range of people including electronics enthusiasts, students, and professionals. It features many calculators including Power, Delta-Wye, AWG, Voltage Drop, Ampacity, THD, Resistor Code, LED Info, and more. You can easily enter the values of the components and get the results using an intuitive UI. This app is a must-have tool for anyone who works with electronics circuits and devices. Key features: • Dark and Light Theme • Delta-Wye Transformation • AWG Size Calculator • Voltage Drop Calculator • Power Calculator • THD Calculator • Ampacity Table • Horsepower Calculator • Resistor Color Calculator • SMD Resistor Code • LED Series Resistor • dBm Conversions • Current Divider • Voltage Divider • Reactance Calculator • Low/High Pass Filter
Opamp tools
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This app is the collection of operational amplifier calculators. It is suitable for hobbyist or electronic engineer. Features * Inverting amplifier * Non-Inverting amplifier * Differential amplifier * Summing amplifier * Inverting comparator * First-order filter * Second-order filter (HPF) * Phase shift oscillator * Colpitts oscillator * Limit 5 combinations of component values * Share CSV via AirDrop * Upload CSV to iCloud Drive (For iOS8 or later) Pro Features * Instrumentation amplifier * Non-inverting comparator * Second-order filter (LPF) * Wien bridege oscillator * Hartley oscillator * No limitation of the number of suggestions * Selectable 1%,5%,10%,20% of values
Screenshots
Verdict
The clearest difference is in-app purchases: Electrikit at none against Opamp tools's 1. Opamp tools's advantage is update cadence (every 12 months vs every 59 months). On price, ads, device support and iOS requirement 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. Opamp tools sells 1 one-off in-app purchase. Electrikit asks for nothing beyond the download.
Electrikit ships an update every 59 months, Opamp tools every 12 months. The most recent releases landed on September 17, 2026 and May 16, 2026 respectively.
| Parameter | Electrikit | Opamp tools |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (7 ratings) — better | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 59 months | Every 12 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 30 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | B&K Precision | Siu Yuen Ho |
In-app purchases
Electrikit
No in-app purchases
Opamp tools
- Unlock pro feature$1.99
Questions
Is Electrikit free?
Is Opamp tools free?
Do Electrikit or Opamp tools have ads?
Which is updated more often, Electrikit or Opamp tools?
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