Quote jobs, issue gas safety certificates, and handle the paperwork side of your trade — all in one app, built for how you actually work. Nothing to install, nothing to configure. Sign up and go.
Spark itself is brand new — but what's inside it isn't. The quoting and gas safety certificate tools are already running in a real UK heating & plumbing business today, doing real jobs. Spark brings both into one app, free to start, for every trade.
Tradify gives you 14 days, then charges. GasApp doesn't give you anything free at all. Spark stays free until you're ready to pay — no countdown, no card needed upfront.
Tradify covers lots of trades but treats certificates as an afterthought bolted onto a generic tool. GasApp does gas safety certificates well, but only gas. Spark is building proper, legally compliant gas safety certificates into a tool that works for every trade, not just gas.
Tradify's price doesn't include a website — that's another £10 a month on top. Spark is meaningfully cheaper once that's accounted for.
Competitor pricing and features verified via public sources, August 2026. Spark rows marked "roadmap" aren't built yet.
| Spark | GasApp | Tradify | |
|---|---|---|---|
| Free tier | Yes — free to start | None | None (14-day trial only) |
| Pricing | Free to start, paid tiers TBC | £19–£32 / user / month | £34–£44 / user / month |
| Trade focus | Multi-trade, skinned per trade | Gas trade only | Multi-trade, generic |
| Gas safety certificates | Proper, purpose-built CP12s (roadmap) | Certs & job sheets | Bolted onto a generic tool |
| Business website | Roadmap | Not offered | £10 / month add-on |
Spark is free to start — no trial countdown, no card needed upfront. GasApp and Tradify don't offer anything free at all. We're still working out what the paid plans look like — join the waitlist and you'll be first to know, and first to get in.
Free plan
£0
Details still being finalised — join the waitlist for updates as the free tier takes shape.
Leave your email and we'll let you know as Spark takes shape.