Comparison

Comtrade Viewer vs SeismoSense

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Comtrade Viewer

Features
Read full description

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: โ€ข COMTRADE (ASCII and Binary) โ€ข SEL .cev, .eve, and .evzip event records โ€ข SEL Motor Start Reports (.msr and .cmsr) โ€ข Beckwith M-3425A, M-3430, and M-3311A .osc records โ€ข S&C IntelliRupter Fault Interrupter records (.wfc) โ€ข 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.

About

SeismoSense

Features
Read full description

SeismoSense turns your iPhone into a personal seismograph โ€” detecting ground motion at your exact location, entirely on-device, while you sleep. 100% FREE. No In-App Purchases. No Subscription. No Ads. PRIVACY-FIRST DETECTION All processing happens on your iPhone. No data is ever sent to external servers. Your seismic log stays on your device โ€” always. HOW IT WORKS SeismoSense uses the STA/LTA (Short-Term Average / Long-Term Average) algorithm โ€” the same trigger method used in professional seismic networks worldwide โ€” to continuously scan your accelerometer. When ground motion exceeds the detection threshold, the app logs the event with: - Estimated intensity (MMI scale: I through XII) - GPS coordinates (stored on-device only) - Duration and detection confidence score - P-wave and S-wave component breakdown - Dominant frequency analysis KEY FEATURES โ€” ALL FREE - Real-time seismic waveform display - Background overnight monitoring (screen off) - Active Monitoring Zone with live map - Unlimited event history - Adjustable sensitivity: Conservative / Balanced / Sensitive - Time-sensitive notifications that break through Focus mode - Audible alarm even when iPhone is in silent mode - Apple Sign In or Guest mode โ€” no account required - Full Turkish and English localization DISCLAIMER SeismoSense is a personal utility app. It is NOT an official earthquake warning system. It is NOT connected to government seismic networks (USGS, AFAD, JMA, Kandilli). Do NOT use for life-safety decisions. Always follow official emergency services and government alerts.

Screenshots

Comtrade Viewer4 screens
SeismoSense4 screens

Verdict

The call

The clearest difference is iOS requirement: Comtrade Viewer at 15.0 against SeismoSense's 17.0. 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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference ยท 5 level
Comtrade Viewer versus SeismoSense: the parameters behind the verdict, then further details
ParameterComtrade ViewerSeismoSense
PriceFreeFree
Update frequencyFortnightlyโ€”
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS15.0 โ€” better17.0
Further details โ€” not scored
Size5 MB4 MB
Age rating4+4+
DeveloperRussell PattersonCem Kaya

In-app purchases

None

Comtrade Viewer

No in-app purchases

None

SeismoSense

No in-app purchases

Questions

Is Comtrade Viewer free?
Comtrade Viewer is free to download, with no in-app purchases.
Is SeismoSense free?
SeismoSense is free to download, with no in-app purchases.
Do Comtrade Viewer or SeismoSense have ads?
Neither Comtrade Viewer nor SeismoSense shows ads.

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