AmpLookUp vs Gridphase
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AmpLookUp
This app simplifies underground ampacity calculations using NEC data. It helps engineers quickly find necessary information, especially for complex scenarios like data centers, by referencing Annex B and providing guidance for two-cell duct banks.
- Underground ampacity calculations
- NEC Annex B data lookup
- Guidance for two-cell duct banks
- Simplifies complex electrical design
- References National Electrical Code
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As with voltage drop, underground duct bank calculations are not a code requirement. Although local authorities may require these calculations. Neher-McGrath calculations are important, especially if the design sizing will ever be fully loaded. A prime example would be a data center application. There are many expensive software tools available and may be required to fit your exact installation. The National Electrical Code (NEC) provides some guidance on the subject; although, applying all of the considerations can be tedious. This application looks-up the data within the NEC. If you have ever looked through Annex B, you know the fun double chart you have to remember how to use. This app also pulls through some of the written text to achieve two cell duct banks, for instance. We welcome feedback.
Gridphase
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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
Verdict
The clearest difference is iOS requirement: AmpLookUp at 10.0 against Gridphase's 12.0. On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | AmpLookUp | Gridphase |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | — | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 15 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | Nebulous LLC | GRID INSTRUMENTS d.o.o. |
In-app purchases
AmpLookUp
No in-app purchases
Gridphase
No in-app purchases









