quietmoneyVoltagelearning
A hardware engineer interview question bank with online practice and AI feedback: it collects real hardware interview questions from companies such as Apple, NVIDIA, AMD, and Tesla, with AI review, role-based practice, behavioral interview questions, and resume tools, to help electronics and electrical engineering students and job seekers prepare.
Chinmay KulkarnOne-line growth story, compiled by us from public sources; speculation is marked separately below.
Revenue over time
Real payments synced by TrustMRR, in USD, by calendar month, renewals included.
- MRR
- $1,809
- Revenue, last 30 days
- $3,398
- All-time revenue
- $22,247
- Active subscriptions
- 99
- Payments via
- Stripe
- Source
- TrustMRR, synced from the founder's payment account
1. Productwhat it sells, to whom, and how it charges
- Product
- A hardware engineer interview question bank with online practice and AI feedback: it collects real hardware interview questions from companies such as Apple, NVIDIA, AMD, and Tesla, with AI review, role-based practice, behavioral interview questions, and resume tools, to help electronics and electrical engineering students and job seekers prepare.
- Users
- Electronics, electrical, and computer engineering students and engineers preparing for internships or jobs at chip and hardware companies
- Positioning
- Software interviews have plenty of prep tools while hardware interviews have almost none; this one focuses on hardware, gives real questions by company and role, and was built by a former Qualcomm hardware engineer who also interviewed campus hires.
- Pricing
- Free plan (1 sample question per category); Lifetime $119 one-time (crossed-out price $199); a monthly option also exists, price not shown Billing: mixed Free tier: yes Source: Pricing page
- Prices on site
- $0 forever (Free plan); $119 one-time (Lifetime Access); $199 one-time shown next to $119, unlabeled
“No referral, invite, share, leaderboard or public profile features visible; only testimonials and university logos (Trusted by students at)”Quote from the site
2. Channelswhere new users come from and what the traffic looks like
New-user source: SEO (Non-brand search). Similarweb 2026-09: organic search 57%, direct 32%, and social traffic from Reddit 6.4%; non-brand keywords include arm internships and hardware fundamentals and one debugging scenario. The website blog published 45 articles between 2026-01-06 and 03-13, with a batch of titles that read like Reddit posts (such as "Don't crash out during FAANG hardware interviews" and "I think FPGA/ASIC recruiting pipelines are broken") plus interview guides written by company and role; the homepage lists logos of 10 universities such as USC, Michigan, and Georgia Tech, and testimonials from engineers at 8 companies. Existing users are retained through the Daily Challenge, a leaderboard, and monthly subscriptions.
Last month's traffic sources
Top channel measured by Similarweb, others estimated by rank
Five-class attribution
| Attributable new users, last month | Share |
|---|---|
| SEO | 34% |
| 6% | |
| Other | 59% |
Direct + brand search 55%. Direct and brand search count as viral only when the site shows sharing mechanics; the largest share wins, under 5% means Other.
Countries
| Country | Share of visits |
|---|---|
| United States | 59.22% |
| India | 37.69% |
| Canada | 3.09% |
Language
English
Social sources
Keywords
36 keywords · brand ~55% · organic 100% / paid 0%
| Similarweb top 5 keywords |
|---|
| voltage learning |
| arm internships |
| voltagelearning |
| hardware fundamentals and one debugging scenario |
| eceinterviewprep .com |
Non-brand queries: arm internships, hardware fundamentals and one debugging scenario, eceinterviewprep .com
Site metrics (Similarweb, last month)
- Visits, last 3 months
- 43.5K
- Visits MoM
- +15.82%
- Country rank
- India #49832
- Bounce rate
- 50.59%
- Pages / visit
- 5.55
- Visit duration
- 00:02:44
- Top 3 channels
- Organic Search › Direct › Organic Social (top channel 57.02%)
3. Growth pathhow the first users arrived and what kept it growing
Classification
Basics
Timeline
Growth loop
Revenue and scale clues
Confidence and gaps
Other sites that started via “Long-tail search”
Similar sitessame category, also growing via SEO
FAQ
How much revenue does Voltagelearning make per month?
About $3,388 last month (real payments synced by TrustMRR), #312 of 563 TrustMRR sites; the month before was $3,100.
Where do Voltagelearning's new users come from?
New-user source: SEO (Non-brand search). New users mostly come from need-based searches Similarweb 2026-09: organic search 57%, direct 32%, and social traffic from Reddit 6.4%; non-brand keywords include arm internships and hardware fundamentals and one debugging scenario. The website blog published 45 articles between 2026-01-06 and 03-13, with a batch of titles that read like Reddit posts (such as "Don't crash out during FAANG hardware interviews" and "I think FPGA/ASIC recruiting pipelines are broken") plus interview guides written by company and role; the homepage lists logos of 10 universities such as USC, Michigan, and Georgia Tech, and testimonials from engineers at 8 companies. Existing users are retained through the Daily Challenge, a leaderboard, and monthly subscriptions.
How much does Voltagelearning cost?
Free plan (1 sample question per category); Lifetime $119 one-time (crossed-out price $199); a monthly option also exists, price not shown
Dossier confidence: medium. Parts 1 and 2 come from reading the site and Similarweb data; part 3 from public reporting, founder posts, Wayback snapshots, WHOIS and similar, with speculation marked.
The numbers: revenue comes from TrustMRR: real payments synced automatically from the founder's Stripe or other payment account, summed by calendar month, renewals included, in USD. Site visits come from the Similarweb public page; where it shows none, they are estimated from global rank or the TrustMRR payment count, as noted on the page.
Data through last month. Page updated 2026-10-31.