PromptHelm vs SpacePrompts
PromptHelm
prompthelm.appSpacePrompts
spaceprompts.comSide by side
| Figure | PromptHelm | SpacePrompts |
|---|---|---|
| Price from | $39/mo | $5/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 4 | 3 |
| Spec score · AI Prompt Management Software | 9.1 (#4) | 8.5 (#8) |
| Spec score · Prompt Management Software | 9.0 (#5) | 8.5 (#8) |
| Authentication | Google and GitHub OAuth SSO are included on every listed plan. | Login supports email magic links plus Google, GitHub and Microsoft sign-in; the login page says data is never shared. |
| Intended users | The documentation identifies engineering teams shipping LLM features, platform teams consolidating provider keys and reporting, and builders who want rigorous prompt history as intended users. | The maker describes SpacePrompts as serving people and teams who work with AI, including designers, writers, marketers, and API automation users. |
| Playground | A browser playground is included for testing prompts through the gateway. | The Playground lets users edit prompts, fill variables, choose a model and run prompts live. |
| Product | PromptHelm describes itself as a prompt management platform for LLM engineering teams to version, deploy, and monitor prompts across providers. | SpacePrompts is a prompt management platform for saving, organizing, running, versioning, and reusing AI prompts. |
| Support | Listed support ranges from community on Free to email with a 48-hour response on Pro, priority plus Slack on Business, and a dedicated SE on Enterprise. | The site directs users to a contact form and says replies typically arrive within 24 hours. |
| What it does | PromptHelm is a prompt-management platform for LLM engineering teams that versions, deploys and monitors prompts. | SpacePrompts manages, runs, versions, shares and retrieves AI prompts for individuals and teams. |
Plans
PromptHelm
- FreeFree
- Pro$39 a month
- Business$249 a month
- EnterprisePriced on request
In their own words
PromptHelm
PromptHelm is a prompt management platform for engineering teams building LLM features. It supports deploying prompts by environment, keeping version histories, rolling back changes, and testing in a playground. Its multi-provider gateway names OpenAI, Anthropic, Google, and DeepSeek. Teams can track token spending by model and prompt, review usage and cost trends, and set budget alerts. Request monitoring filters by status, model, or prompt and provides request and response details for debugging; analytics cover P50/P95/P99 latency, error rates, and model performance comparisons. SDKs are listed for Node, Python, iOS, Android, Java, and.NET. Plans include a free tier, Pro at $39 a month, and Business at $249 a month; Enterprise pricing is custom and unlisted. New accounts receive an automatic 14-day Pro trial without a credit card. The documentation describes access as invite-only, with private-beta invitations rolling out weekly.
SpacePrompts
SpacePrompts is a prompt management platform for people and teams working with AI. It runs on the web, through an API, and with Chrome, Edge, and Firefox extensions. Users can save, organize, run, version, and reuse prompts. The Playground combines an editor, variables, model selection, and immediate runs. An Evaluator scores prompts, highlights weak areas, and gives improvement guidance. Every save creates a version that can be restored later. The prompt manager extension can turn highlighted webpage text into a prompt. Its token counter supports OpenAI, Claude, Gemini, and DeepSeek models, showing token counts and estimated costs. Pro and Team plans provide API access, limited to 60 requests per minute per key. Team workspaces add shared libraries, collaborative editing, and role permissions for up to five members. Free includes 50 prompts and daily usage limits; Pro is $5 a month billed annually, and Team is $9 a month billed annually.