Comtrade Viewer vs AzaraHQ
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Comtrade Viewer
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COMTRADE Viewer is an easy-to-use tool for viewing and analyzing power system event records. Display waveforms directly on your device. Now includes incremental based double-ended fault locator based on method of Kasztenny and Smelich. Supported file formats include: ā¢ COMTRADE (ASCII and Binary) ā¢ SEL .cev, .eve, and .evzip event records ā¢ SEL Motor Start Reports (.msr and .cmsr) ā¢ Beckwith M-3425A, M-3430, and M-3311A .osc records ā¢ S&C IntelliRupter Fault Interrupter records (.wfc) ā¢ ATP/EMTP .pl4 files Open files directly from Mail, Files, AirDrop, and other supported apps, or explore the included sample records to get started. Built for power system engineers and technicians who need quick access to event records while in the field, at the office, or on the go.
AzaraHQ
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Azara listens and watches while you work. Talk out loud, point your camera, and it keeps up: no typing, no forms, no friction.
Screenshots
Verdict
The clearest difference is update cadence: AzaraHQ at weekly against Comtrade Viewer's fortnightly. Comtrade Viewer's advantage is iOS requirement (15.0 vs 18.1). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Comtrade Viewer ships an update fortnightly, AzaraHQ weekly. The most recent releases landed on October 4, 2026 and October 3, 2026 respectively.
| Parameter | Comtrade Viewer | AzaraHQ |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Weekly ā better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod ā better | iPhone, iPad |
| Requires iOS | 15.0 ā better | 18.1 |
| Further details ā not scored | ||
| Size | 4 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Russell Patterson | Bhargav Annem |
In-app purchases
Comtrade Viewer
No in-app purchases
AzaraHQ
No in-app purchases
Questions
Is Comtrade Viewer free?
Is AzaraHQ free?
Do Comtrade Viewer or AzaraHQ have ads?
Which is updated more often, Comtrade Viewer or AzaraHQ?
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