"Which one should I use to build my app — Antigravity, Cursor, or Bolt?" The honest answer is that the question depends on the phase you're in. Spec sheets won't tell you that, so this article shares what I've seen running all three across real app projects as a one-person studio.
If you want a feature-by-feature comparison, I have a separate article for that. Here, I focus on how the same goal — building an app — plays out differently across the three tools depending on where you are in the project's life.
Quick Answer: Switch Tools as the Phase Changes
Ranking the three on a single axis doesn't work. The honest split I've settled on:
Bolt is fastest in the "idea validation and early prototype" phase. Antigravity is most stable in the "design is firming up, time to write production code" phase. Cursor has the lowest friction in the "shipping incremental work on a living codebase" phase. Inside the same project, switching tools as you move through phases is a real best practice.
That works because each tool has a sweet spot in the state of the code it operates on. Bolt is best at growing something out of an empty repo. Antigravity is best at examining structured tasks from multiple angles. Cursor is best at localized edits across an existing tree.
Why Bolt Wins the Validation Phase
When you want to go from idea to demo in two hours, environment setup and the psychological cost of starting a new project are the biggest enemies. Bolt brings a full stack scaffolding to life in a browser tab, basically removing those costs.
What I actually do: ask Bolt for "a minimum Next.js + Tailwind + Stripe checkout app" and have something running in five minutes. Without polluting my local environment, I get a working artifact and decide whether the idea is worth more time.
The catch: Bolt's output is great as scaffolding, not as a long-term codebase. After a day or two, you'll feel pulled to move it locally. Catching that handoff moment cleanly is how Bolt pays back.
Why Antigravity Stabilizes the Design Phase
Once your spec is articulable, Antigravity's parallel multi-agent flow starts paying off. From experience, somewhere past 30 files Cursor's single-context editing starts missing small inconsistencies. Antigravity's "decompose, investigate in parallel, integrate" loop catches more and reduces my own cognitive load.
A recent mid-size web app: I split "auth flow", "billing flow", and "admin permissions" into three parallel Antigravity agents. Each agent owned a file group, and a fourth review-only sub-agent compared the diffs at the end. Compared to the same project run solo through Cursor, I landed roughly 1.5x faster.
[Antigravity parallel-task layout]
- agent A: src/auth/* OAuth implementation
- agent B: src/billing/* Stripe Checkout
- agent C: src/admin/* permissions
- agent D (consistency review): reads diffs from A/B/C, surfaces conflictsThe catch: cut dependencies before you parallelize. If your data layer or interfaces aren't defined first, the final integration phase fills with collisions. Pin down the type definitions yourself before handing off.
Why Cursor Owns the Long-Tail Maintenance Phase
For day-to-day feature work after launch, Cursor's incremental editing model is hard to beat. The Cmd+K localized edit and Cmd+L chat ping-pong handles the 5- to 30-minute task class smoothly.
Antigravity feels heavy here because the parallel-agent startup cost doesn't justify a small change. Bolt isn't applicable in this phase at all — its design assumes empty-repo growth, not deep edits into an existing tree.
In my own setup, Cursor is the daily driver, Antigravity is the design tool, and Bolt is the new-project ritual. Switching among the three inside one project has become routine.
Team Size Matters Too
How team size changes the picture is often overlooked.
For solo developers, Bolt + Cursor is overwhelmingly cost-efficient. You won't run massive refactors every day, so Antigravity is best treated as a tool you reach for on specific days rather than every session.
For 3–10 person teams, Antigravity in the role of "design reviewer and pair-programming partner" is a strong fit. Substitute synchronous design meetings with Antigravity sub-agent runs, and let humans focus on final judgment. Cursor-only teams tend to drift in code-style consistency; placing Antigravity at the center makes governance stick.
Cost Reality
All three tools have paid plans, but a phase-based rotation keeps the monthly total reasonable. My current setup: Cursor full-time, Antigravity for the first two weeks of the month, Bolt for the first week of any new project. Combined, around $80 per month.
The economic logic of Antigravity is "use the day fully when you use it." Once you internalize the cost of spinning up parallel agents, you naturally batch heavy thinking onto Antigravity days.
Which One to Try First
If you're picking one to try, match it to your current phase. New idea? Try Bolt. Speeding up an existing repo? Try Cursor. Planning a refactor? Try Antigravity. "I'll just start with Antigravity" leads to a worse first impression than starting from the right phase fit.
A Concrete Next Step
Tomorrow, name your current project's phase out loud — validation, design solidification, or ongoing operations. Once the phase is named, the tool choice falls out automatically. Skipping that articulation is what produces the nagging mismatch most developers feel when they pick a tool by reflex.