Mike Holt UI comparison (review 7)

Two tools, two jobs

Mike Holt built an empire teaching the Code. His books, videos, and graphics are the gold standard for learning NEC theory. Ask BONBON is built for the guy standing on a ladder at 2pm with a conduit run half-pulled and an inspector coming Friday.

Both are useful. They answer different questions. If you want to understand why 250.122 sizes equipment grounding conductors the way it does, Mike Holt will walk you through it with illustrations and a voice-over. If you need the table value for a 200A feeder right now, you need something faster.

Speed on the jobsite

The Mike Holt site and app are deep. That depth comes with menus, categories, and a lot of scrolling. On a good connection in the truck, fine. On a basement slab with one bar of signal, you are waiting.

Ask BONBON runs as a chat. You type "EGC for 400A feeder copper" and get the article citation, the table row, and the answer. No navigation tree. No landing page. The app is built around the assumption that you already know what you are looking for, you just need the number.

• Mike Holt: structured learning paths, lesson modules, graphics heavy
• Ask BONBON: direct query, citation first, minimal UI
• Mike Holt: better for studying for the journeyman or master exam
• Ask BONBON: better for answering a question while a helper holds the ladder

How citations show up

Mike Holt quotes the Code and then explains it. The explanation is the product. You get the article number, the text, and then a paragraph or a video unpacking what it means. For a new apprentice, that context is worth the time.

Ask BONBON leads with the citation and the direct answer, then offers the reasoning if you ask. Example: ask about receptacle spacing in a dwelling kitchen and you get NEC 210.52(C), the 24 inch and 12 inch rules, and the island countertop requirement from 210.52(C)(2). No backstory unless you request it.

Tip: when an inspector questions your layout, quote the article and the subsection, not the general rule. "210.52(C)(1)" ends the conversation faster than "kitchen receptacle spacing."

Coverage of the working articles

Both tools cover the full NEC. The difference is depth versus retrieval. Mike Holt has extensive treatment of the articles most electricians study: 210, 215, 220, 240, 250, 310, 430. You can spend hours on grounding and bonding alone in his material, and it is time well spent if you are building your foundation.

For the articles a service electrician hits every day, Ask BONBON is tuned for lookup. Ampacity from 310.16. Box fill from 314.16(B). Conductor derating from 310.15(C)(1). Motor overcurrent from 430.52. These are the questions that come up on a service call and need an answer in under a minute.

Price and access

Mike Holt sells books, DVDs, online courses, and bundled programs. Pricing varies. A full exam prep package runs several hundred dollars. The value is real if you are sitting for a license. Free content on his site is substantial, especially the graphics and article summaries.

Ask BONBON is a subscription app. Lower cost, always in your pocket, no physical books to lose on a job. It does not replace a code book or a study course. It replaces the moment you open your code book on the tailgate and flip for five minutes looking for Table 310.16.

1. Studying for a test: Mike Holt
2. Learning grounding theory from scratch: Mike Holt
3. Field lookup during a rough-in: Ask BONBON
4. Answering an inspector at the panel: Ask BONBON
5. Sizing a service on a bid walk: Ask BONBON

Where each one wins

Mike Holt wins on teaching. If you want to actually understand why 250.66 sizes the grounding electrode conductor differently than 250.122 sizes the EGC, his material explains the engineering reasoning. That understanding makes you a better electrician, not just a faster one.

Ask BONBON wins on speed. The UI is a text box. The answer includes the article, the table, and the specific subsection. No videos, no graphics, no scroll. If your phone is dirty and your hands are worse, the interface stays out of the way.

Tip: use both. Study with Mike Holt in the evenings if you are working on a license. Keep Ask BONBON on your home screen for the questions that come up during the day.

Honest verdict

They are not direct competitors. Mike Holt is a school. Ask BONBON is a reference in your pocket. An electrician who uses both has the foundation and the speed. An electrician who uses only one is missing half the toolset.

If you are an apprentice, lean on Mike Holt for the first few years. If you are a licensed electrician running calls, Ask BONBON pays for itself the first time you skip the walk back to the truck for your code book.