Electronics Reference Toolkit is a portable utility for electronics calculations and component decoding, designed for students and engineers on iOS.
The App DNA
What makes this app unique?
The app removes the connectivity dependency required by many engineering tools, allowing for reliable use in field environments where internet access is unavailable.
For Students, hobbyists, and engineers requiring quick, portable reference tools for electronics projects.
What does it look like?
Key features
Calculates Ohm’s Law, LED resistor values, voltage dividers, and RC/RL time constants for circuit design.
Decodes resistor color bands and capacitor EIA codes for hardware identification.
Searchable database of NPN, PNP, and MOSFET components with filtering.
Full functionality available without internet connectivity, reducing dependency on external tools in field environments.
How much does it cost?
The app is currently free to download with no visible in-app purchase or subscription gates, providing a low-friction entry point for users.
Velocity
Dormant developmentnew contentShow more...
With no updates in 239 days, the app has entered a state of inactivity. The latest release, which introduced several engineering tools, remains the only version in the observed history. Development momentum is currently non-existent, and there are no signs of ongoing maintenance or feature expansion.
Who built it?
Ha Do Thi Thu
13+ apps tracked · Utilities
Split Screen: Dual Browser
Poster Printer: Tile Print
Microphone Live For Speaker
Watermark Remover AI Eraser
dB Meter: Noise & Decibel
Resistor Code Calculator Pro
Timelapse maker: Speed Changer
GPS Area & Distance Measure
Prompt Keyboard: AI Paste
Dual Camera: Shot Front & Back
EXIF Remover: Photo Metadata
Privacy Screen BrowserUser Sentiment
What do users think recently?
How are ratings & reviews evolving?
Not enough recent reviews to extract reliable themes yet.
Read the full review analysisCompetition
Competitive landscape for Electronics Reference Toolkit
How's the Utilities market?
Electronics Reference Toolkit holds a 4.83 rating across 12 reviews, positioning it as a high-quality but low-visibility utility. The lack of monetization gates distinguishes it from ad-supported rivals, though the current review count limits its ability to climb the category charts.
Read the market outlookThe rivals identified
Unlock the deeper market read.
Access the full report for freeThe Analyst's Read
Key takeaways for Electronics Reference Toolkit
Where is it heading?
The engineering utility market is consolidating around tools that offer both speed and offline reliability. Electronics Reference Toolkit is well-positioned to capture users who prioritize a clean, ad-free experience, but it must increase its review count to survive the discovery funnel against larger, ad-funded competitors.
- The latest release added four engineering tools, signaling that the developer is actively expanding the utility set rather than entering maintenance mode.
- The current review volume remains low, which limits the app's ability to gain traction in the competitive Utilities category.
The SWOT
- Offline-first architecture reduces dependency on external tools in field environments.
- Specialized transistor reference database provides a differentiator against generic calculators.
- Capture market share from ad-heavy rivals by maintaining a clean, gate-free experience.
Next best moves
Implement a review-prompt trigger after successful calculations because low review volume limits discovery → increase organic install velocity
The counter-intuitive read
The lack of monetization is not a weakness but a strategic moat…
Read the full takeBottom line
Electronics Reference Toolkit provides a reliable, offline-first engineering utility that currently lacks the social proof to scale. Implementing a targeted review-prompt mechanism would address the visibility gap, allowing the app to better compete against ad-heavy rivals.
Unlock 1 critical friction, 1 market threat and the analyst’s take.
Access the full report for freeFAQ
Is Electronics Reference Toolkit free to use?
Does Electronics Reference Toolkit require an internet connection?
What tools are included in the latest update?
Sources
- [1] App Store, source
Report last updated