Bid Buddy vs Joist: Contractor Estimating Apps Compared

Joist is one of the best-known mobile estimating and invoicing apps for contractors — it has been around for years and a lot of trades run their paperwork through it. Bid Buddy is narrower on purpose: it exists to get the number right before the paperwork starts. Here is an honest look at where each one is strong.

Side by side

Feature comparison between Bid Buddy and Joist
FeatureBid BuddyJoist
Free version with no accountAccount required
Prices to true margin, not just markup
Overhead applied before profit
AI interviews you to build the bid
Voice / hands-free bidding on site
Saved bids and reusable templatesPro
AI-written customer proposalsPro
Email the finished bid to the customerPro
Invoicing and payment collection
Native iOS / Android appBrowser-based
Entry priceFree; Pro $9.99/moFree tier + paid plans

The real difference: markup vs true margin

Most estimating apps, Joist included, let you attach a markup percentage to a line item or to the job total. That is fine arithmetic and terrible profit planning, because markup and margin are not the same number. Add 30% markup to a $10,000 job and you bill $13,000 — a 23% margin, not 30%. Repeat that across a year and the gap is thousands of dollars you thought you had earned.

Bid Buddy prices with the true-margin formula: bid = true cost ÷ (1 − target margin). To actually keep 30% on that $10,000 job you need to bill $14,286. Bid Buddy shows you both numbers side by side, so you can see exactly what markup your target margin implies.

Where overhead goes

Truck payment, insurance, fuel, phone, software, and the unpaid hours you spend quoting jobs you never win are not on any material receipt. If your bidding software only sums materials and labor and then adds profit, your overhead is being paid out of your profit — silently.

Bid Buddy takes overhead as its own percentage and folds it into true cost before margin is applied. It is one extra field, and it is the field that decides whether a busy year is a profitable year.

Building the bid: form vs conversation

Joist gives you a clean, structured estimate form with line items — good if you already know how your bid should be shaped and you are sitting somewhere you can type.

Bid Buddy starts with a conversation instead. Bid Buddy AI asks what the job is, what trade, what size, what materials, and what margin you want to hold, then assembles the line items with you. You can talk to it hands-free while you are still walking the job, which is the difference between a bid that gets built and a bid that gets built 'tonight'.

What Joist does that Bid Buddy does not

Joist is a fuller back-office tool: invoicing, payment collection, and native mobile apps are part of its offering. If your main pain is getting paid and chasing invoices, that matters and Bid Buddy does not replace it.

Bid Buddy stops at the bid and the proposal. Pro ($9.99/month, 3-day free trial) adds saved bids, reusable templates, customer records, AI-written proposals, and emailing the finished bid straight to the customer — but there is no invoicing module, and we would rather say so than pretend otherwise.

Which one should you pick?

If you need invoicing and payment collection in the same app, Joist covers more ground. If your problem is that you are winning jobs and not making money on them, Bid Buddy is the sharper tool: it is free to try with no account, prices to true margin, puts overhead where it belongs, and lets you build the bid by talking instead of typing. Plenty of contractors run both — Bid Buddy to set the number, their invoicing app to collect it.

Questions contractors ask

Joist is a trademark of its owner. Bid Buddy is not affiliated with or endorsed by Joist. Features and pricing described here are based on publicly available information and can change — check their site for current details.