CoverHook
7.3#1 in ai thumbnail generatorsFrom $99 a yearFree planWebAPI
VisitCoverHook vs Thumby
What both publish
| Fact | CoverHook | Thumby |
|---|---|---|
| Data handling | CoverHook says prompts and reference images are sent to apimodels.app for AI generation, and account data and files are stored in Cradler. | The privacy policy says uploaded reference images are stored privately, personal data can be scrubbed within 30 days after account deletion, and payment records are retained for seven years. |
| Formats | The site lists YouTube thumbnails, album covers, book covers, TikTok/Reels covers, text covers, and YouTube banners. | Thumby supports standard 16:9 thumbnails, YouTube Shorts at 9:16, and says one brief can also produce Instagram and Pinterest formats. |
| Privacy | CoverHook says it runs no advertising, analytics, or third-party tracking scripts, and does not sell user data or train models on user content. | Thumby says it does not sell user data and lists Anthropic and Google as AI providers that receive prompts through their APIs. |
| Support | The Studio plan includes priority support; privacy and data requests are handled by email, with a stated target response time of 30 days. | Thumby says it reads every contact message and replies within a day. |
CoverHook plans
- FreeFree
- 2,000-credit pack$29.90, paid once
- 4,000-credit pack$59.90, paid once
- Pro$99 a year
- 10,000-credit pack$99.90, paid once
- Studio$199 a year
Thumby plans
- FreeFree
- Starter$15, paid once
- Creator$49, paid once
- Pro$99, paid once
Pick CoverHook if…
CoverHook suits creators who need designed covers or thumbnails across its supported formats, particularly YouTube creators who want variant generation and fit checks. Its API may suit workflows that need asynchronous generation, retries, and account-based credit use.
Pick Thumby if…
Thumby suits video creators who want thumbnail options from a short idea without writing prompts or making design decisions. Channel-style matching and formats for Shorts and other listed platforms may suit creators publishing across those formats.