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📖 The AI Tool Bible

GradGPT vs PromptBase

A side-by-side look at pricing, capabilities, pros, cons, and our editorial scores.

 GradGPT logo
GradGPT
Writing
PromptBase logo
PromptBase
Writing
TaglineAI essay coach that scores and red-flags college application drafts against admissions rubrics.Marketplace for buying, selling, and running prompts across the major image and text models.
CategoryWritingWriting
PricingFreemium· Free plan: $0 · GradGPT Plus yearly: $12/month · GradGPT Plus monthly: $36/monthFreemium· PromptBase Select: $14
ModelMulti-model
Editorial score6.8 / 107.0 / 10
Use cases
college-essay-feedbackadmissions-prepcommon-app-essaysap-test-practicecollege-matching
prompt-marketplacemidjourney-promptschatgpt-promptsstable-diffusion-promptssell-prompts
Pros
  • Cheaper than a human admissions consultant for the same iteration loop
  • Rubric-based scoring grounded in real admit benchmarks
  • Free access path for low-income and Title I students
  • Covers the full app: essays, activities, AP prep, college match
  • Massive catalog (270k+) across nearly every major image and text model
  • Cheap entry point - most prompts under $10 with preview outputs
  • Two-sided: buyers get shortcuts, sellers get a built-in storefront
  • Select subscription bundles a large curated subset for power users
  • Hire feature for commissioning custom prompts when nothing fits
Cons
  • Underlying model and methodology aren't disclosed
  • US admissions focus; thin value for international applicants
  • No API or programmatic access for schools or counselors
  • Risk of homogenized 'AI-flavored' essays if students over-rely
  • Quality is seller-dependent and ratings can be gamed
  • No public API for programmatic access
  • Prompts decay as underlying models update
  • Easy to find similar prompts free on Reddit or Discord
Websitegradgpt.compromptbase.com
Pick GradGPT if
  • Cheaper than a human admissions consultant for the same iteration loop
  • Rubric-based scoring grounded in real admit benchmarks
  • Free access path for low-income and Title I students
  • Covers the full app: essays, activities, AP prep, college match
Pick PromptBase if
  • Massive catalog (270k+) across nearly every major image and text model
  • Cheap entry point - most prompts under $10 with preview outputs
  • Two-sided: buyers get shortcuts, sellers get a built-in storefront
  • Select subscription bundles a large curated subset for power users