PromptHero vs SJinn
Plans, free access, limits and intended use side by side, taken from each vendor’s own pages. No score and no winner: the facts show where the two differ.
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Searchable AI image and video prompt library with a credit-based generator
AI agent that plans image and video projects across many models
- Free access
- PromptHero: Free access
- SJinn: Free trial only
- Paid from
- PromptHero: USD 16 per month
- SJinn: USD 19.9 per month billed monthly
- Plans listed
- PromptHero: 4
- SJinn: 5
- Public API
- PromptHero: Not confirmed
- SJinn: Not confirmed
Where PromptHero and SJinn differ
- AccessPromptHero offers free access, while SJinn offers a free trial only.
- PlansPromptHero lists 4 plans and SJinn lists 5.
Head to head
Each value from the tool’s profile and the vendor’s own pages
| PromptHero | Fact | SJinn |
|---|---|---|
| Access and price | ||
| Free access availableFree · USD 0 | Free accessDiffers | Free trial onlyFree trial · Free; amount not published |
| USD 16 per monthStarter · billed yearly at $194 | Lowest listed paid plan | USD 19.9 per month billed monthlyStandard · or $12 per month in the yearly view |
| Free plan; Starter $16 and Pro $24 a month billed yearly | Pricing model | Free trial; paid from $19.9/month ($12/month in the yearly view) |
| 4 | Plans listedDiffers | 5 |
| Not confirmed | Public API | Not confirmed |
| Not confirmed | Card to start | Not confirmed |
| Not confirmed | Open source | Not confirmed |
| What it is for | ||
| Finding prompts for a specific image model before generating | Built for | Creators who want one credit balance across several image and video models |
| Images & design | CategorySame | Images & design |
| Platforms |
|
| Not listed | Works with |
|
| How current | ||
| Profile sources checked | ||
| Prices confirmed · Oct 10, 2026 | Pricing checkSame | Prices confirmed · Oct 6, 2026 |
Official source check for both tools. No hands-on testing and no score: “Differs” marks a documented difference, not a better tool.
Plans and prices
PromptHero
Prices confirmed · Oct 10, 2026- FreeUSD 0
- StarterUSD 16 per monthbilled yearly at $194
- ProUSD 24 per monthbilled yearly at $296
- Credit packsUSD 59 for 1,000 creditsor $99 for 2,000
SJinn
Prices confirmed · Oct 6, 2026- Free trialFree; amount not published
- StandardUSD 19.9 per month billed monthlyor $12 per month in the yearly view
- ProUSD 49.9 per month billed monthlyor $30 per month in the yearly view
- UltraUSD 99 per month billed monthlyor $60 per month in the yearly view
- EnterpriseUSD 999 per month billed monthlyor $720 per month in the yearly view
Strengths and limits
PromptHero
Strengths
- Free account to start: The pricing page offers a free plan with limited daily generations, and the sign-in page says to start with a free account.
- Credits that do not expire: Credit packs of $59 for 1,000 and $99 for 2,000 roll over and accumulate, and can be bought without a subscription.
- Failed generations refunded: The FAQ says credits are returned when a generation fails.
Limits to plan around
- Monthly prices not visible: The pricing page opened on its yearly view, so monthly-billing amounts and the per-generation credit cost could not be read.
- Broad content licence: The FAQ terms give PromptHero a perpetual licence to display, sell and make derivatives from contributions, including on other platforms.
- Public unless you subscribe: Free and credit-pack generations are public, and public prompts and images are kept indefinitely.
SJinn
Strengths
- Plan prices are on the page: Monthly and yearly figures for four plans, with credit allotments, are readable without an account.
- Credit rates are published: The pricing page lists a credit cost for each model, so a project can be costed before generating.
- Credits do not expire: The credit package page says purchased credits never expire; packs start at $20 for 17,000 credits.
Limits to plan around
- Trial size is not published: The FAQ and terms mention complimentary credits without an amount, expiry or watermark rule.
- Yearly price is not a charge: The yearly view shows $12 to $720 a month under a 40% banner but no annual total, and Enterprise is 28% below monthly, not 40%.
- Terms and privacy lag the product: The terms describe a GPT-4O image tool at 100 credits per image; the privacy policy is dated 10/07/2024 and covers images only.
See both products
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Questions about comparing tools
How does the comparison work?
Add two tools to the comparison tray from any tool card, then open this page. The table pulls each tool's verified plan details, platforms, strengths and limits from its profile, so both columns carry the same kind of evidence, with a separate source-check date for each tool.
Do you declare a winner?
No. The table sets two tools against each other on documented facts, not on a score. Which one wins depends on your task, your budget and your usage volume — three things we cannot see from here.
Why are some cells empty or marked unverified?
Because we could not confirm that detail on the vendor's own pages. Rather than filling the gap with a figure from elsewhere, we mark it and say why on the tool's profile.
Can I compare more than two tools?
Not at once. Two columns keep the differences readable and force a real decision. Remove either selected tool to replace it, or clear both to start a new pair.
Every figure in the table above comes from the linked profile, where the source and the verification date are listed. Browse all tools or read the editorial policy.