Pricing
One price. Lifetime access.
Every VoltExam app is $17.99 — once. No subscription. No monthly charges. Pass your exam and keep the app forever.
One-Time Purchase
Per app — buy once, keep forever
$17.99 / app
- Lifetime access — no renewal ever
- 1,000+ practice questions
- Built-in trade calculator
- Full offline access
- All 51 state guides included
- Free future question updates
Monthly Subscription
Access every VoltExam app
$6.99 / month
- All 19 trade prep apps included
- Great for multi-cert candidates
- Cancel anytime
- 1,000+ questions per app
- Built-in trade calculators
- Full offline access
How VoltExam Compares
Competitors charge per month, per exam. VoltExam charges once.
| App | One-Time | Monthly | Annual |
|---|---|---|---|
| VoltExam (you're here) | $17.99 / app | $6.99 / all apps | — |
| Pocket Prep | Not available | $9.99–$14.99 / exam | $69.99–$99.99 / exam |
| SkillCat | Not available | $9.99–$14.99 | $99.99 |
| Dakota Prep | $90–$150 | — | — |
Competitor pricing based on publicly listed App Store pricing as of March 2026.
Pricing FAQ
Is there a free trial?
All 12 free trade calculators on voltexam.com are free with no account required. The practice question apps are available for purchase at $17.99 one-time on the App Store.
What happens after I buy? Do I need to renew?
No renewal — ever. A one-time purchase gives you lifetime access to that app, including free question updates. You'll never be charged again.
Can I use VoltExam offline?
Yes. All apps work completely offline after download. No Wi-Fi required in the field, on the job, or in test prep mode.
What if I'm studying for multiple exams?
The $6.99/month subscription gives you access to all 19 apps. If you're studying for two or more certifications at once, it's the better value. If you're focused on one exam, the $17.99 one-time purchase wins after just 3 months.
Is VoltExam available on Android?
VoltExam apps are currently iOS only. Free web tools (voltage drop, hazmat placard, refrigerant charge, etc.) work on any device at voltexam.com/tools.
Ready to start studying?
19 trade certification apps. All $17.99 one-time.