Comparison

Comtrade Viewer vs ScopeSnap

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

Head to head
About

Comtrade Viewer

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

ScopeSnap

Features
Read full description

ScopeSnap is a macOS and iOS utility designed for engineers, hobbyists, and educators to capture screen images directly from LAN-enabled digital oscilloscopes. Optimized for the Rigol 1000Z Series, ScopeSnap lets you quickly download the current screen display from your instrument to your Mac or iPhone with a single click. Whether you’re documenting experiments, troubleshooting signals, or preparing reports, ScopeSnap streamlines your workflow by making it easy to save and archive scope screenshots for later reference. Key Features: β€’ Connects to supported oscilloscopes over your local network (LAN) β€’ Designed for Rigol DS1054Z and other LXI-compatible scopes β€’ Captures high-quality screen images instantly β€’ Save screenshots directly to your Mac or iPhone for easy access β€’ Simple, clean interface built specifically for macOS and iOS β€’ Hands-free snapshots with Siri β€’ Ideal for lab documentation, reports, and analysis ScopeSnap helps bridge your oscilloscope and your Mac or iPhone, making your test and measurement setup more productive and efficient. Legal Disclaimer: Rigol name is a trademark of RIGOL Technologies, Co., Ltd. The application β€œScopeSnap” is an independently developed and distributed software application that is not affiliated, associated, authorized, endorsed by, or in any way officially connected with RIGOL Technologies, Inc., or any of its subsidiaries or affiliates.

Screenshots

Comtrade Viewer4 screens
ScopeSnap4 screens

Verdict

The call

The clearest difference is update cadence: Comtrade Viewer at fortnightly against ScopeSnap's every 6 months. Comtrade Viewer also leads on iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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

UpkeepUpdate frequency

Comtrade Viewer ships an update fortnightly, ScopeSnap every 6 months. The most recent releases landed on October 4, 2026 and October 11, 2026 respectively.

Scorecard2 real differences Β· 4 level
Comtrade Viewer versus ScopeSnap: the parameters behind the verdict, then further details
ParameterComtrade ViewerScopeSnap
PriceFreeFree
Update frequencyFortnightly β€” betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod β€” betteriPhone, Mac
Requires iOS15.0 β€” better17.0
Further details β€” not scored
Size4 MB1 MB
Age rating4+4+
DeveloperRussell PattersonAndrzej Rozga

In-app purchases

None

Comtrade Viewer

No in-app purchases

None

ScopeSnap

No in-app purchases

Questions

Is Comtrade Viewer free?
Comtrade Viewer is free to download, with no in-app purchases.
Is ScopeSnap free?
ScopeSnap is free to download, with no in-app purchases.
Do Comtrade Viewer or ScopeSnap have ads?
Neither Comtrade Viewer nor ScopeSnap shows ads.
Which is updated more often, Comtrade Viewer or ScopeSnap?
Comtrade Viewer ships an update fortnightly, and ScopeSnap every 6 months. Most recently, Comtrade Viewer was updated on October 4, 2026 and ScopeSnap on October 11, 2026.

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