PiFi vs NEC Code Studio & Tools
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
PiFi
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No need for terminal, SSH or even LuCI. PiFi has all of pro features you love from OpenWrt, reimagined to be more capable, more simple and even more fun. So things like blocking trackers and ads, connecting or switching VPN profiles and accessing your network-stored documents, photos or videos are now just a tap away on iPhone and iPad. NETWORK SETTINGS - Customize network settings, setup a travel router, and more with just a few taps WIREGUARD & OPENVPN CLIENT - Easily upload and manage multiple VPN profiles directly from your iPhone or iPad. Create a VPN network for ALL your devices in seconds ADGUARD HOME - Access AdGuard Home software for network-wide ad and tracking blocking NETWORK STORAGE - Easily expand your network storage capacity (USB storage, SSD, or SD Card) and access your files from anywhere on the network ** COMPATIBILITY NOTICE This app WILL ONLY work if your Raspberry Pi 4 or 5 has been flashed with PiFi firmware, either downloaded from the PiFi website or through a pre-configured SD Card. Standard OpenWrt builds that are not optimised for PiFi are not compatible with this app. For full compatibility details, see pifi.org TRADEMARK NOTICE Raspberry Pi is a trademark of Raspberry Pi Ltd, AdGuard and AdGuard Home are trademarks of Adguard Software Ltd, WireGuard is a registered trademark of Jason A. Donenfeld, OpenWrt is a trademark owned by Software Freedom Conservancy (SFC). All other trademarks and copyrights are the property of their respective owners. PiFi firmware, software, and accessories are developed by PiFi Ltd, an independent project.
NEC Code Studio & Tools
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This app is a visual reference library for electricians, electrical engineers, inspectors, and students โ covering the National Electrical Code from the utility service entrance all the way to branch circuits and special systems. Browse 165 hand-picked illustrations organized into 11 categories: Distribution Systems, Service Entrance, Panel Layouts & Schedules, Wiring Diagrams & Floor Plans, Grounding & Bonding, Overcurrent & Motor Circuits, Load Calculations, Low Voltage & Special Systems, Safety & Code Compliance, Fire Alarm Systems, and Building Automation. Search Illustrations Find any diagram instantly across all 11 categories. Search by title, topic, or NEC article โ results appear as you type. Recently Viewed Your viewing history appears at the top of Browse so you can pick up right where you left off. No hunting through categories to find a diagram you were just studying. Share Any Illustration Send any wiring diagram, riser, floor plan, or code reference directly from the gallery to colleagues, students, or inspectors. Residential Load Calculator (NEC Article 220) Calculate service load the standard NEC method โ general lighting, small appliance and laundry circuits, large appliances, HVAC, and optional loads all in one place. Results update live as you type, with automatic demand factor application, service size recommendation (100Aโ400A), and conductor sizing for the hot, neutral, and grounding electrode conductor. NEC Reference Requirements Plain-English summaries of key NEC requirements organized by chapter โ from working space clearances and conductor terminations to GFCI protection, grounding, and equipment installation rules. Search by article number or topic to find what you need in the field, fast. Illustration viewer features: Swipe left and right to flip through illustrations within any category. Pinch to zoom in for fine detail and pan while zoomed. Double-tap to zoom in, double-tap again to reset. Bookmark any illustration as a favorite for quick access. Works on iPhone and iPad. Full Dark Mode support. A practical field and study companion for anyone working with the NEC.
Screenshots
Verdict
The clearest difference is price: PiFi at Free against NEC Code Studio & Tools's $2.99. PiFi also leads on iOS requirement (12.0 vs 17.6). On update cadence, 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
PiFi is free to download; NEC Code Studio & Tools costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
PiFi ships an update every 6 weeks, NEC Code Studio & Tools monthly. The most recent releases landed on October 5, 2026 and October 2, 2026 respectively.
| Parameter | PiFi | NEC Code Studio & Tools |
|---|---|---|
| Price | Free โ better | $2.99 |
| Update frequency | Every 6 weeks | Monthly โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPad |
| Requires iOS | 12.0 โ better | 17.6 |
| Further details โ not scored | ||
| Size | 93 MB | 494 MB |
| Age rating | 4+ | 4+ |
| Developer | PiFi Ltd | Yuhsiu Lai |
In-app purchases
PiFi
No in-app purchases
NEC Code Studio & Tools
No in-app purchases
Questions
Is PiFi free?
Is NEC Code Studio & Tools free?
Do PiFi or NEC Code Studio & Tools have ads?
Which is updated more often, PiFi or NEC Code Studio & Tools?
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