Comparison

efX vs Gridphase

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

Head to head
About

efX

Monitor the status and usage of your x-ray systems remotely. Track scan progress, view live data, and manage your devices from anywhere. Requires a North Star Imaging X-ray system and service agreement.

Highlights
  • View all x-ray systems at once
  • Monitor system usage
  • Track scan progress
  • View live system data
  • Enterprise management options
  • Private mode for secure environments
Read full description

See the status of all your x-ray systems. Monitor your system usages on the go for maximum efficiency. Connecting your NSI x-ray system(s) with the app is easy. Simply download the app, scan the QR code in efX-DR and you’re ready to go! Once you and your system are registered, keep up to date with what your system is doing from anywhere. No need to stand next to your system to wait for that scan to finish. KEEP AN EYE ON THE BIG PICTURE • View all your x-ray systems at once • See which systems are currently in use. • Option for enterprise management of your x-ray systems and mobile devices STAY UPDATED • View live data for your x-ray systems. Keep up to date with the progress of your scans • See the status of your x-ray: progression, interruption, completion • Preview what your system is scanning. • Allows private mode setting for secure environments. A North Star Imaging X-ray system, efX software, and active NSI service agreement is required to use this app.

About

Gridphase

Read full description

Introducing the Gridphase mobile application - your indispensable tool when working with the Gridphase handheld instrument. Designed to seamlessly integrate with your device, this app enhances its capabilities by enabling straightforward phase identification in power distribution networks. Gridphase mobile ensures that phase identification is just a tap away. Experience the synergy of your handheld instrument and mobile app working in perfect harmony, making your tasks simpler and more efficient.

Screenshots

efX4 screens
Gridphase4 screens

Verdict

The call

The clearest difference is iOS requirement: efX at 8.0 against Gridphase's 12.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 1, 2026 and September 30, 2026 respectively.

Scorecard1 real difference · 8 level
efX versus Gridphase: the parameters behind the verdict, then further details
ParameterefXGridphase
PriceFreeFree
Rating5.0 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyEvery 3 monthsEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS8.0 — better12.0
Further details — not scored
Size65 MB57 MB
Age rating4+4+
DeveloperNorth Star Imaging, Inc.GRID INSTRUMENTS d.o.o.

In-app purchases

None

efX

No in-app purchases

None

Gridphase

No in-app purchases

Questions

Is efX free?
efX is free to download, with no in-app purchases.
Is Gridphase free?
Gridphase is free to download, with no in-app purchases.
Do efX or Gridphase have ads?
Neither efX nor Gridphase shows ads.
Which is updated more often, efX or Gridphase?
efX ships an update every 3 months, and Gridphase every 3 months. Most recently, efX was updated on October 1, 2026 and Gridphase on September 30, 2026.

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