The Capacity Insider’s Guide
Everything we know about Capacity in one document: what it costs, its grades, getting a refund, getting help and what else to look at. Read it here, or keep a copy.
Capacity
The Insider’s Guide
AI builder for full-stack web and mobile apps, hosted for you
Every plan, grade, refund rule and rival among AI app builders, read from Capacity’s own pages.
Made by RocketSocial SASU · checked Oct 5, 2026 · toolgpa.com
Contents
- 01WelcomeWhat it is, who it suits, its grades and the ten things to know first
- 02What it costsEvery plan, the free plan, ways to pay less and how prices have moved
- 03What it doesIts main features, where it runs, what it works with and who makes it
- 04Where it standsIts grades against its category, and whether to keep it or make your own
- 05The alternativesThe tools it is most often weighed against, side by side
- 06Quick answersThe questions people ask about it, each answered in a line or two
- 07About ToolGPAWho made this guide, what else is on the site, and how to cite it
ToolGPA put this guide together from Capacity’s own pages, its app-store listings and our grades. Every fact in it is on Capacity’s page too, where it is kept up to date. Checked Oct 5, 2026.
Part 01 · Overview
Welcome
What it is, who it suits, its grades and the ten things to know first
2.6
GPA, above 15 of the 26 other AI app builders we grade
Capacity builds full-stack web apps and native mobile apps from a plain-language description, asking a few clarifying questions before it generates the frontend, backend and database. Apps are hosted on Capacity's own servers and can use a custom domain. Paid plans include credits for the built-in agent and also allow unlimited building from Claude or ChatGPT through a connector, which runs on the buyer's own AI subscription.
To get you started, here are 9 things to know about Capacity, taken from its own pages and our grades.
You can also build from Claude or ChatGPT on your own subscription without spending Capacity's credits.
- 1
Best for building apps from your Claude or ChatGPT chat
Capacity asks a few questions about what you want, then builds the front end, back end and database, hosted on its own servers.
- 2
Paid plans start at $25 a month
As its pricing page puts it: $25 per month (Starter).
- 3
You can try it first
The homepage says your first app is free; the pricing page lists paid plans only, with no free credit amount.
- 4
It runs on 2 platforms
Web and macOS.
- 5
Questions first, then a full-stack app
Capacity asks about purpose, users and style before it builds, then generates a frontend, a backend and a dedicated database that are wired together.
- 6
Build from Claude or ChatGPT
A connector lets Claude or ChatGPT create and edit Capacity apps from a chat. That work runs on your own AI subscription and uses no Capacity credits on paid plans.
- 7
Vibe and Spec coding modes
Vibe mode builds straight from prompts. Spec mode has the AI follow a project brief, UX specs and design requirements that are written first.
- 8
A 2.6 GPA, above 15 of 26
That is against the other AI app builders we grade, on value, the free plan, features, ease of use and platforms.
- 9
Keep it
To replace Capacity you would be making a tool that builds and hosts other apps. That is not a weekend's work, with an AI app builder or without one.
Capacity at a glance
- Pricing
- Free trial, from $25 per month (Starter)
- Free plan
- No
- Free trial
- The homepage says your first app is free; the pricing page lists paid plans only, with no free credit amount.
- Runs on
- Web, macOS
- Made by
- RocketSocial SASU, since 2024
- Category
- AI App Builders
- Our grade
- 2.6 GPA, good
The report card
Best for building apps from your Claude or ChatGPT chat
Capacity asks a few questions about what you want, then builds the front end, back end and database, hosted on its own servers. You can also build from Claude or ChatGPT on your own subscription without spending Capacity's credits. But the pricing page lists no free plan, paid plans start at $25 a month for 100 agent credits, code export waits at $69, and the desktop app is Mac only.
| Subject | Grade | Comment |
|---|---|---|
| Value for money | C | Starter is $25 a month, right on the line where the dearest quarter of builders here begins, against a $19 middle. It buys 100 agent credits, unlimited projects and custom domains, and building from your own Claude or ChatGPT subscription spends none of them. Servers above 256 MB take 1 to 10 credits a day. |
| Free plan and trial | C | The pricing page lists paid plans only. The homepage says your first app is free, but nowhere says how many credits that covers or whether a card is wanted, so you can't plan around it. Treat it as a look round, not a free plan. |
| Features | B | It covers the whole job: it asks about purpose, users and style, then builds a front end, back end and database wired together, with hosting and custom domains, iPhone and Android apps through Expo on the same backend, and a version history you can restore from. You can also build from your own Claude chat. |
| Ease of use | B | No rating on record, but it asks about purpose, users and style before it builds anything, then hosts the result with nothing to configure. Spec mode, where you write the brief and UX specs first, is the harder road, and the credit meter wants watching. |
| Platforms and integrations | B | Web plus a desktop app for the Mac, with no Windows or Linux version mentioned and nothing on a phone for building. What it makes runs on the web and as iPhone and Android apps through Expo. It connects to Claude, ChatGPT, Supabase, Stripe, Vercel and GitHub. |
An A is worth 4 points, a B 3, a C 2, a D 1 and an F nothing. The GPA is the average of the five.
Who Capacity is for
- Fits if you already pay for Claude or ChatGPT and want to build apps with it
- Works for products that need a web app and a phone app on one backend
Who it is not for
- Not for you if you want a free plan to stay on, as the pricing page lists paid plans only
- Watch out: the homepage says your first app is free, but no page says how many credits that covers
- Tight if you lean on the built-in agent: Starter has 100 credits, messages use a variable amount, servers above 256 MB take 1 to 10 a day, and extras are $9 for 10
- Pricey if you want full codebase export, which the pricing page lists under Growth at $69
- Skip it if you want a desktop app on Windows or Linux, since only a Mac app is mentioned
Good to know
Good for
- Non-developers who want an app built and hosted in one place
- People who already pay for Claude or ChatGPT and want to build with it
- Products that need a web app and a companion mobile app on one backend
Worth knowing
- The pricing page lists no free plan; paid plans start at $25 a month, and extra credits are sold from $9 for 10.
- The built-in agent is metered in credits, and each message uses a variable amount depending on the task.
- Servers larger than the free 256 MB tier draw 1 to 10 credits a day from the same balance.
- The desktop app is described as a Mac app; no Windows or Linux version is mentioned.
Part 02 · Pricing
What it costs
Every plan, the free plan, ways to pay less and how prices have moved
$25
A month to start
Capacity is a paid product with a free trial, starting at $25 per month (Starter).
Treat it as a look round, not a free plan.
Starter
$25
per month
100 credits for the Capacity agent, unlimited building from Claude and ChatGPT, unlimited projects, custom domains and email support.
Growth
$69
per month
250 credits for the Capacity agent, full codebase export and a dedicated WhatsApp support channel.
Professional
$129
per month
500 credits, everything in Growth, premium support and early access to new features.
Business
$299
per month
1,000 credits, everything in Professional, a dedicated success manager and custom integrations.
Trying it first
The homepage says your first app is free; the pricing page lists paid plans only, with no free credit amount.
Read from capacity.so on Oct 5, 2026.
Part 03 · Features
What it does
Its main features, where it runs, what it works with and who makes it
2
Places it runs: Web and macOS
AI builder for full-stack web and mobile apps, hosted for you. Here is what it does, as its own site describes it, and what it covers: AI features, AI agents, app builder, no-code.
You can also build from your own Claude chat.
- Questions first, then a full-stack app
- Capacity asks about purpose, users and style before it builds, then generates a frontend, a backend and a dedicated database that are wired together.
- Build from Claude or ChatGPT
- A connector lets Claude or ChatGPT create and edit Capacity apps from a chat. That work runs on your own AI subscription and uses no Capacity credits on paid plans.
- Vibe and Spec coding modes
- Vibe mode builds straight from prompts. Spec mode has the AI follow a project brief, UX specs and design requirements that are written first.
- Hosting and custom domains
- Apps publish to a capacity.studio address on a dedicated server. The 256 MB tier uses no credits, larger servers use 1 to 10 credits a day, and custom domains can be connected.
- Native mobile apps
- A project can include an iOS and Android app built with Expo that shares the web app's backend. Builds run in the cloud and can be submitted to both app stores.
- Version history and code export
- Every change is a version that can be restored. The pricing page lists full codebase export under Growth, while the changelog says ZIP download is on all plans.
Where it runs
- Web
- macOS
What it works with
- Claude
- ChatGPT
- Supabase
- Stripe
- Vercel
- GitHub
- Expo
Capacity is made by RocketSocial SASU, and has been around since 2024.
Part 04 · Standing
Where it stands
Its grades against its category, and whether to keep it or make your own
15/26
Other AI app builders it is graded above
Capacity's GPA of 2.6 is higher than 15 of the 26 other AI app builders we grade, and level with 3.
It stands best on features (B, above 15 of 26) and worst on free plan and trial (C, above 1).
Its paid plans start at $25 a month, against a middle price of $19 for the category: 20 of the 26 others that charge start lower.
On features, ease of use and platforms it scores 3.0 out of 4. 4 tools score higher and cost less.
Each grade against the category
Every bar is all 27 AI app builders we grade, cut by the letter each got. Capacity’s own letter is outlined.
- CValue for moneyAbove 6 of 26
- CFree plan and trialAbove 1 of 26
- BFeaturesAbove 15 of 26
- BEase of useAbove 7 of 26
- BPlatforms and integrationsAbove 4 of 26
Price against what you get
Each dot is one of 27 AI app builders. Further left costs less; higher up scores better on features, ease of use and platforms. Capacity is the marked dot.
What paid plans start at, a month (each step along is roughly double) →
Keep it, or make your own?
Whether this is something you could build for yourself with an AI app builder, and what you would give up.
Keep it
To replace Capacity you would be making a tool that builds and hosts other apps. That is not a weekend's work, with an AI app builder or without one.
It costs $300 a year.
What you could not
- A tool that builds and hosts other apps.
- A builder that other people can use without writing code.
- An AI agent, with the models and the safeguards behind it.
- A real app for macOS. Something home-made would be a web page.
- It plugs into other products, Claude, ChatGPT and Supabase among them.
- The depth: we grade its features B, which means it covers the whole job.
What this rests on. Capacity’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
Part 05 · Alternatives
The alternatives
The tools it is most often weighed against, side by side
Lovable, Bolt, Base44, Replit and Emergent
The 5 tools Capacity is most often weighed against, with where each one differs from it.
- 2.8GPA
Lovable
Free plan · from $21/mo
Chat-based AI builder for full-stack web apps and websites.
- Lovable has a free plan. Capacity does not, though it has a free trial.
- Only Lovable lists Windows, iOS and Android apps.
- Capacity also covers AI agents.
- 2.6GPA
Bolt
Free plan · from $18/mo
Browser-based AI builder for websites, web apps and mobile apps.
- Bolt has a free plan. Capacity does not, though it has a free trial.
- Only Capacity lists a macOS app.
- Capacity also covers AI agents.
- 2.8GPA
Base44
Free plan · from $16/mo
No-code AI builder with a database, login and hosting included.
- Base44 has a free plan. Capacity does not, though it has a free trial.
- Only Capacity lists a macOS app.
- Only Base44 lists iOS and Android apps.
- 3.0GPA
Replit
Free plan · from $18/mo
Cloud platform where an AI agent builds, hosts and publishes apps.
- Replit has a free plan. Capacity does not, though it has a free trial.
- Only Replit lists Windows, Linux, iOS and Android apps.
- 2.4GPA
Emergent
Free plan · from $17/mo
AI agents that build and deploy full-stack web and mobile apps.
- Emergent has a free plan. Capacity does not, though it has a free trial.
- Only Capacity lists a macOS app.
Part 06 · Questions
Quick answers
The questions people ask about it, each answered in a line or two
12
Questions, each answered in a line or two
The short version of everything above, for when you only need the answer. Each one is told in full in its part of the guide.
Is Capacity free?
No, Capacity is a paid product, but you can try it first. The homepage says your first app is free; the pricing page lists paid plans only, with no free credit amount.
How much does Capacity cost?
Capacity lists 4 plans. Starter: $25 per month.
What platforms does Capacity work on?
Capacity is available on Web and macOS.
Does Capacity have an Android app?
No Android app was listed when its pages were read on Oct 5, 2026. Capacity is listed for Web and macOS.
Does Capacity have an iPhone app?
No iPhone app was listed when its pages were read on Oct 5, 2026. Capacity is listed for Web and macOS.
Is Capacity open source?
Capacity is not described as open source on its own site, as read on Oct 5, 2026.
What does Capacity integrate with?
Capacity's listing names Claude, ChatGPT, Supabase, Stripe, Vercel, GitHub and Expo.
Who makes Capacity?
Capacity is made by RocketSocial SASU. It dates from 2024.
What are the alternatives to Capacity?
The closest alternatives to Capacity in our directory are Lovable, Bolt, Base44, Replit and Emergent.
How does Capacity compare with other AI app builders?
Capacity's GPA of 2.6 is higher than 15 of the 26 other AI app builders we grade, and level with 3.
Is Capacity good value for money?
ToolGPA grades Capacity C for value for money. Its paid plans start at $25 a month, against a middle price of $19 for the category: 20 of the 26 others that charge start lower.
Could I make my own version of Capacity?
To replace Capacity you would be making a tool that builds and hosts other apps.
Where this guide comes from
The prices, plans, platforms and features were read from Capacity’s own pages on Oct 5, 2026, and the grades were given on Oct 10, 2026. Graded from this listing, whose facts were read from Capacity's own pages on 5 October 2026. Also tested with a demo account on 2026-09-11.
Every tool we list gets five grades, A to F, each with its reason, and a GPA that averages them. How each is decided is at toolgpa.com/grades. This guide is ToolGPA’s own work; it is not made, paid for or approved by RocketSocial SASU. Prices change, so check capacity.so before you buy.
Part 07 · About
About ToolGPA
Who made this guide, what else is on the site, and how to cite it
3,189
Tools graded, in 94 categories
ToolGPA grades software the way a school report grades a pupil: five subjects, a letter for each with the reason written beside it, and a GPA that averages them. Prices, plans and platforms are read from each maker’s own pages and dated, so you always know how fresh a figure is.
Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Every tool on the site has a guide like this one, free to download and pass on. It all lives at toolgpa.com.
3,189
tools graded
94
categories
426
price changes on record
579
apps priced in 12 countries
What else is on toolgpa.com
- Capacity, kept up to dateEverything in this guide, with prices and grades as they are todaytoolgpa.com/tools/capacity
- How grades are givenThe rules behind every letter and every GPAtoolgpa.com/grades
- Value chartsWhat each tool costs against what it scores, for every categorytoolgpa.com/charts
- CompareAny two tools side by side, plan by plantoolgpa.com/compare
- Price changesEvery price rise and cut on record, each with its sourcetoolgpa.com/price-changes
- Prices by countryWhat apps cost on the App Store in 12 countriestoolgpa.com/prices-by-country
- Pay lessEvery public discount: yearly billing, students, nonprofitstoolgpa.com/save
- Keep or makeWhich tools are worth paying for, and which you could build yourselftoolgpa.com/keep-or-make
Scan for the live page
Prices and grades as they are today
Quoting this guide?
Please name ToolGPA and link to the live page, so readers can check the figures for themselves:
ToolGPA, "Capacity: The Insider's Guide", checked Oct 5, 2026. https://toolgpa.com/tools/capacity
Know someone choosing between AI app builders?
Send them this guide: toolgpa.com/tools/capacity/guide
ToolGPA elsewhere: youtube.com/@toolgpa
See our other guides
The best-graded AI app builders after Capacity, each with an Insider's Guide of its own.
- AI App Builders Insider's GuideEvery one of the 27 AI app builders we grade, compared
- Taskade Insider's GuideWorkspace that builds apps, AI agents and automations from prompts3.2 GPA
- Replit Insider's GuideCloud platform where an AI agent builds, hosts and publishes apps3.0 GPA
- Base44 Insider's GuideNo-code AI builder with a database, login and hosting included2.8 GPA
Choosing software? Every tool graded, every price dated.
Compare tools at toolgpa.com ›Everything in this guide is ToolGPA’s own summary of what Capacity’s pages, its app-store listings and public reviews said on the dates shown. Grades are our judgement under the rules at toolgpa.com/grades. Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Capacity is a trademark of its owner, and this guide is not made, paid for or approved by RocketSocial SASU. Prices and plans change: check capacity.so before you buy.