Grammarly
Free tier available
- Free$0
- Premium$12/mo
- Business$15/user/month
Our pickGrammarly

Power BI
Tier-list head-to-head. Grammarly takes the A-tier slot — here's the breakdown.
Spec sheet
| Tier | A-tierwin | B-tier |
| Overall score | 8.0 / 10win | 7.5 / 10 |
| Free tier | Yes | Yes |
| Starting price | $0 | $0 |
| Best for | Non-native English speakers, professionals who write lots of emails, and anyone who wants a passive grammar… | Enterprise teams already invested in the Microsoft stack who need serious BI capabilities. |
| Last reviewed | 2026-03-26 | 2026-03-31 |
Head-to-head
Rated 1-10 on the same rubric across all 130 tools we cover.
What you'll pay
Look past the headline number -- entry-tier limits drive most cost surprises.
Free tier available
Free tier available
The decision
Use-case anchors and category strengths, side by side.
Non-native English speakers, professionals who write lots of emails, and anyone who wants a passive grammar net running in the background. It catches things you'd miss.
Visit GrammarlyEnterprise teams already invested in the Microsoft stack who need serious BI capabilities. The Copilot integration makes it more accessible, but Power BI's real strength is still its depth for trained analysts.
Visit Power BIBottom line
Grammarly edges out Power BI by 0.5 points (8.0 vs 7.5) -- a A-tier vs B-tier split that's narrow but real. Not a blowout; both belong on a shortlist. The score gap shows up most clearly in the categories that matter for Grammarly's strengths, so if those categories are your priority, the lead translates.
Pricing-wise, both tools have a free tier (Grammarly starts $0, Power BI starts $0), so you can test either without committing. Compare what each free tier actually unlocks -- usage caps, model access, and feature gates differ a lot more than the headline price suggests, especially as both vendors have tightened limits in 2026.
By use case: pick Grammarly when non-native english speakers, professionals who write lots of emails, and anyone who wants a passive grammar net running in the background. Pick Power BI when enterprise teams already invested in the microsoft stack who need serious bi capabilities. The two tools aren't fighting for the same person -- they're aiming at adjacent jobs that occasionally overlap. If you're squarely in Grammarly's lane, the tier-list ranking and the use-case fit point the same direction; if you're in Power BI's lane, the score gap matters less than the fit.
Bottom line: Grammarly is the safer default for most readers, but Power BI is competitive enough that the tie-breaker is your specific workload, not the spec sheet.
Keep digging
Full Grammarly review
Tier A · 8.0/10
Full Power BI review
Tier B · 7.5/10
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Built from our daily AI-tool sweep, last touched March 31, 2026. Honest tier-list reviews — no affiliate-link pieces disguised as advice. See the rubric or how we review.