Estimated monthly cost comparison — not just the headline price
Grammarly and Retool do different jobs, so this is not a like-for-like comparison. The prices below are shown side by side for reference only; compare what each tool does before comparing cost.
Prices change often — confirm on the vendor's site before buying. Report incorrect pricing →
Quick Take
Different tools for different jobs — no cost winner
Based on advertised price plus documented recurring fees, not your exact usage.
Best for Grammarly
AI writing assistant for grammar, clarity, and tone. Free plan is basic, then $12-$15/user/mo for fu
Best for Retool
Build internal tools fast with drag-and-drop. Free tier is limited, paid plans are expensive for tea
AI writing assistant for grammar, clarity, and tone. Free plan is basic, then $1...
Advertised
$0
/month
Estimated monthly cost
$12
/month (illustrative)
AI Writing Assistance Limits
Generative AI features (rewrite, compose, ideate) have monthly prompt limits. Premium gets 1,000 pro...
Premium Required for Full Features
Free plan only catches basic grammar and spelling. Clarity, tone detection, word choice, formality l...
Per-Seat Team Pricing
Grammarly Business at $15/user/mo. A 50-person team = $750/mo ($9,000/yr). Team analytics, style gui...
Build internal tools fast with drag-and-drop. Free tier is limited, paid plans a...
Advertised
$10
/month
Estimated monthly cost
$600
/month (illustrative)
Dual User Pricing (Builder vs User)
Retool charges differently: builders (devs who create apps) cost $10-50/mo, internal users (employee...
Workflow Run Overage
$75 per 5,000 additional workflow runs/month ($0.015/run). A single workflow running every 5 minutes...
External User Tiered Pricing
Customer-facing portals on Business: first 50 free, then $8/user/mo (51-250), $6 (251-500), $4 (500+...
SSO/SAML Requires Enterprise
SAML/OpenID SSO is Enterprise-only with custom (undisclosed) pricing. Any company with SSO requireme...
Audit Logs Require Business
Audit logging needs Business at $50/builder/mo — 5x the Team price. Required for SOC 2, HIPAA compli...
Grammarly advertises $0/mo. Retool advertises $10/mo.
Grammarly has 3 documented hidden fees. Retool has 5.
Grammarly confidence: 76%. Retool confidence: 70%.
| Metric | Grammarly | Retool | Winner |
|---|---|---|---|
| Advertised Price | $0/mo | $10/mo | Grammarly |
| Estimated Monthly Cost | $12/mo | $600/mo | — |
| Recurring Extra Fees | +$12/mo | +$590/mo | Grammarly |
| One-Time Costs | $0 | $0 | — |
| # Documented Fees | 3 | 5 | — |
| Pricing Tiers | 3 | 4 | — |
| Affiliate Program | None | None | — |
Grammarly advertises $0/mo and Retool advertises $10/mo. Grammarly has 3 documented extra fees (recurring: +$12/mo), while Retool has 5 (recurring: +$590/mo). Grammarly and Retool do different jobs, so there is no like-for-like cost winner — compare what each one does before comparing price. Your real cost depends on seats and usage — use the calculator for your numbers.
Grammarly has 3 documented extra fees: AI Writing Assistance Limits, Premium Required for Full Features, Per-Seat Team Pricing. Recurring fees add roughly $12/mo on top of the $0/mo advertised price.
Retool has 5 documented extra fees: Dual User Pricing (Builder vs User), Workflow Run Overage, External User Tiered Pricing, SSO/SAML Requires Enterprise, Audit Logs Require Business. Recurring fees add roughly $590/mo on top of the $10/mo advertised price.
Choose Grammarly if: AI writing assistant for grammar, clarity, and tone. Free plan is basic, then $12-$15/user/mo for fu. Choose Retool if: Build internal tools fast with drag-and-drop. Free tier is limited, paid plans are expensive for tea. The right choice depends on your team size, usage volume, and which features you need most.
This comparison is compiled from public vendor pricing pages and documentation. It uses illustrative assumptions (see "Cost Comparison Summary"), not your exact seats or usage, and vendor prices change often. Confirm current prices on each vendor's site, and use our calculator with your own usage for a closer estimate. Spotted an error? Email hello@trulycritic.com.
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