VoltVerify vs NorthMail
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
VoltVerify
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Volt Verify is the go-to app for fire alarm technicians using the New Silent Accelerated Test method. Time your test, enter the final voltage, and get an instant pass/fail result. The battery capacity calculator determines the required battery size and gives you an instant pass/fail result based on your system values โ no notebook or calculator is needed. Easily save and share test results for quick documentation and reporting. Built to support compliance with the new CAN/ULC-S536/S537-19 battery testing standards, Volt Verify helps technicians stay accurate, consistent, and code-compliant. Fast, silent, and accurate battery testing, all in your pocket.
NorthMail
This app offers secure and fast email access for existing users, featuring real-time notifications, easy email management, and integrated calendar and contacts. It prioritizes privacy with Canadian-hosted, encrypted data.
- Real-time email notifications
- Easy email reading and composing
- Integrated calendar management
- Synchronized contacts
- Canadian-hosted encrypted data
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NorthMail โ Simple, Secure Email Access NorthMail provides fast, secure, and reliable email access exclusively for NorthMail users. Designed for simplicity and privacy, our app lets you effortlessly manage your emails, calendar, and contacts directly from your iPhone. Key Features: Real-time Notifications: Never miss an important email with instant push notifications. Easy Email Management: Quickly read, reply, and compose emails. Integrated Calendar: Effortlessly manage your schedule and appointments. Contacts Management: Keep your contacts synchronized and easily accessible. Privacy First: Your data is encrypted and secure, hosted exclusively in Canada. Please Note: To use this app, you must already have an account. Account creation is not available within the app.
Screenshots
Verdict
The clearest difference is update cadence: VoltVerify at every 6 weeks against NorthMail's every 5 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
VoltVerify ships an update every 6 weeks, NorthMail every 5 months. The most recent releases landed on September 28, 2026 and October 7, 2026 respectively.
| Parameter | VoltVerify | NorthMail |
|---|---|---|
| Price | Free | Free |
| Positive reviews | โ | 100.0% of reviews |
| Update frequency | Every 6 weeks โ better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | โ | Free |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPad |
| Requires iOS | 15.6 โ better | 16.6 |
| Further details โ not scored | ||
| Size | 16 MB | 6 MB |
| Age rating | 4+ | 17+ |
| Developer | Mike Ellis | 9387-6084 Quebec Inc |
In-app purchases
VoltVerify
No in-app purchases
NorthMail
No in-app purchases









