Simple Circuit Builder vs FLOW ID Identity
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Simple Circuit Builder
This virtual lab offers a hands-on experience for learning about resistors and circuit resistance. Easily build and test series and parallel circuits, measure voltage and current, and understand the impact of component changes in real-time.
- Build circuits with up to eight components
- Five component types
- Virtual volt and amp meters
- Adjustable resistor and voltage values
- Real-time circuit analysis
- Demonstrates 'Opens' and 'Shorts'
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Description This is the BEST app to learn about Resistors and Circuit Resistance (Equivalent Resistance). This virtual lab provides an excellent environment for anyone who is interested in understanding series and parallel resistors, learning how to measure voltages across resistors, current through series and parallel circuits and solving simple circuits. Features - VERY SIMPLE and EASY TO USE, with up to eight component sections. - Component sections can easily be configured from five different types. - VIRTUAL "Hands On" experience using volt and amp meters. - Resistor values can easily be changed with a picker, keypad or using randomize button. - Circuit voltage can easily be changed from 1 to 1000 volts with a picker or a keypad. - The "Basics" screen make this app unique for the simplicity and speed of seeing the effects of "Opens" (resistor component with infinite resistance) and "Shorts" (resistor component with zero resistance). - FREE and NO ADVERTISEMENTS. - The circuit is always "LIVE" and immediately shows voltage, current and circuit resistance with any changes made to the circuit.
FLOW ID Identity
Manage your digital identity securely and privately. Share only necessary information for transactions, from online purchases to in-person interactions. Offers password management and age verification.
- Secure digital identity management
- Selective data sharing for transactions
- Password management
- Age verification
- Immutable transaction records
- Contactless interactions
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Privacy that you own! With FLOW ID you represent yourself in the way that you choose. Come live in a world where you can provide only what is required for the transaction! From online to in person, FLOW ID delivers irrefutable digital identity that offers fast, secure, contactless interactions with others without giving up your privacy. FLOW ID is true privacy that’s actually convenient. FLOW ID empowers individuals, businesses and governments alike to quickly share pre-verified identity data - from a license to an account number - to authenticate transactions, all while providing an immutable transaction record that both sides of the transaction will always be able to access. Our identity authentication platform provides identity assurance and privacy across a variety of transactional environments. A sampling of current platform capabilities: eCommerce – One touch onboarding and transaction validation, age verification, identity certainty Financial Services – Fully KYC/AML compliant, seamless onboarding, immutable transactions, passwordless authentication Chain of Custody – Pickup/delivery assurance Age Verification – Anonymous identity proofing for any age restricted product both online and in person covering alcohol, tobacco, CBD, Adult content, etc. Peer-to-Peer – Online dating, online marketplaces, Buy Nothing groups, identity assurance for both sides of the transaction Password Management – Free to our users, FLOW ID provides password management that allows you to share and manage all of your secure passwords in one place with unmatched control Own your Privacy with FLOW ID!
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Verdict
The clearest difference is review sentiment: FLOW ID Identity at 100% against Simple Circuit Builder's 53%. FLOW ID Identity also leads on rating (5.0 vs 4.0). Simple Circuit Builder's advantage is update cadence (every 3 weeks vs every 2 months) and ratings volume (28 vs 2). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
FLOW ID Identity holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Simple Circuit Builder has 28 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 53% of Simple Circuit Builder's written reviews are positive against 100% of FLOW ID Identity's.
Simple Circuit Builder ships an update every 3 weeks, FLOW ID Identity every 2 months. Both last shipped on November 3, 2026.
| Parameter | Simple Circuit Builder | FLOW ID Identity |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (28 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 52.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 28 — better | 2 |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 14 MB | 154 MB |
| Age rating | 4+ | 12+ |
| Developer | David White | Flow ID Inc |
Customer experience
Simple Circuit Builder
FLOW ID Identity
In-app purchases
Simple Circuit Builder
No in-app purchases
FLOW ID Identity
No in-app purchases
Questions
Is Simple Circuit Builder free?
Is FLOW ID Identity free?
Which has better reviews, Simple Circuit Builder or FLOW ID Identity?
Do Simple Circuit Builder or FLOW ID Identity have ads?
Which is updated more often, Simple Circuit Builder or FLOW ID Identity?
Other comparisons
