A Bolt alternative with a bill you can predict.
Bolt.new made in-browser AI development feel instant, and its framework range — including Expo for mobile — is genuinely impressive. opix differs on the economics and the exit: metered credits with caps instead of token burn, and a Next.js + Postgres stack you own. The honest comparison:
Free welcome credits · no card required · failed builds cost $0
What Bolt does well
Bolt runs your whole dev environment in the browser on StackBlitz’s WebContainers — no sandbox spin-up, instant starts. It speaks more frameworks than almost anyone (Next.js, Astro, Vue, and notably Expo for native mobile), and the free tier is generous: 300K tokens a day, up to a million a month, with hosting included.
Pro at $25/month starts at 10M tokens with no daily limit, custom domains and bigger uploads, and since mid-2025 unused paid tokens roll over for one extra month. If you need a native mobile app from a prompt today, Bolt is the stronger pick — opix doesn’t do Expo, and we’d rather tell you here.
Side by side
Bolt details from bolt.new/pricing, early July 2026. Check their page for current terms.
| Bolt | ● opix | |
|---|---|---|
| Metering | Tokens — usage varies with each prompt and model detour | Credits with a live per-build cost meter and hard spend caps |
| Entry price | Free: 300K tokens/day, 1M/mo; Pro $25/mo from 10M tokens | Free welcome credits, no card; Starter $29/mo with 120 credits |
| Rollover | Paid tokens roll over one extra month (active plan required) | Plan credits refresh monthly; one-time packs never expire, no plan required |
| Failed builds | Token metering bills the attempt, successful or not | Failed builds and auto-fixes are free — you pay for kept results |
| Environment | In-browser WebContainers — instant, multi-framework (incl. Expo) | Cloud sandbox running real Next.js with a dedicated Neon Postgres |
| Database | Integrations, with choice of provider on Pro | Dedicated Postgres per app — schema in your repo, yours to take |
| Company base | United States (StackBlitz) | Switzerland — CH/EU data posture, DPA available |
Where opix stakes its difference
Spend you can predict
The meter shows each build’s cost, caps bound the project, and failures are free. No mental math about what a token buys.
Gates before your eyes
Type-check and runtime smoke test run on every build, with free auto-repair. 94% of first builds compile clean.
A database you own
Every app gets its own Neon Postgres — not an integration to configure, a possession to take with you.
Credits without a clock
Packs from $10 never expire and need no subscription. Build in bursts without feeding a monthly meter.
How to choose
Choose Bolt for instant in-browser hacking, framework variety, and mobile via Expo — and if you like tinkering on a generous free tier, the daily tokens are real. It’s a fast, flexible environment with a big ecosystem behind it.
Choose opix to ship one web product with visible unit costs: a Next.js app with its own Postgres, auth and payments, built through quality gates, capped spending, and an eject path that’s a feature rather than a threat. Predictability is the product.
Asked before you asked.
Tokens vs credits — what’s the real difference?+
Tokens meter the model’s work, including its detours — a confused generation costs what it costs. opix credits meter kept results: the meter shows each build’s price, and failures or auto-repairs bill nothing. Neither model is a scam; they allocate risk differently. Tokens put the variance on you; opix puts it on us.
Can opix build mobile apps like Bolt?+
No — opix builds web applications. They’re responsive and work well on phones, but if you need a native iOS/Android app from a prompt, Bolt’s Expo support is the better tool today.
Isn’t Bolt’s free tier more generous?+
For volume, yes — up to a million tokens a month recurring versus opix’s one-time welcome credits. The difference is what they buy: opix welcome credits never burn on failures, so they translate into finished builds at a predictable rate. Tinkerers should take Bolt’s free tier; shippers should measure both.
Do both export code?+
Yes — Bolt has GitHub options, and opix exports the full repository plus a database you own. The opix eject path is explicitly supported: standard Next.js, standard Postgres, deploy anywhere Node runs.
What stack does opix generate?+
Next.js App Router with TypeScript and Tailwind on a dedicated Neon Postgres, with auth and connectors generated in. One stack, done thoroughly — that focus is exactly the trade against Bolt’s breadth.
Prefer a bill you can read?
Build the same app on opix — the meter shows every cost, and the failures are on us.
Bolt and StackBlitz are trademarks of their owner; opix is not affiliated with or endorsed by StackBlitz. Competitor details reflect bolt.new/pricing as read in early July 2026 and may have changed — verify current terms before deciding.