AI Use Cases

Alternatives · Writing · updated Oct 15, 2026

Grammarly alternatives

Grammarly ranks #2 of 7 for grammar, tone & editing with an evidence score of 25/100. Its weak spot: Suggestions can flatten a distinctive voice and the premium nag prompts in the free tier are constant. 11 other tools are ranked for the same jobs (grammar, tone & editing, email writing & inbox management); 1 score higher, 10 can be used free and 0 are open source. Same public signals as the ranking, recomputed nightly — nothing here is sponsored. Read the Grammarly review.

All 11 alternatives, ranked

evidence / 100
1
Gemini Free tier
Google's assistant with Deep Research reports, Gmail/Docs/Drive integration and YouTube video understanding.

+ Deep Research produces long cited reports from dozens of sources, and it reads your Gmail, Drive and Calendar directly when you allow it.
− Quality swings between Flash and Pro models, and it refuses or hedges on some topics more than competitors.

Google AI Pro $19.99/mowebiosandroidapi
77▲ 33
evidence / 100
2
DeepL Free tier
Neural machine translation praised for natural output in European languages, plus DeepL Write for editing.

+ Translations read more naturally than Google Translate for German, French, Spanish and other European languages, and it translates whole documents with formatting intact.
− Covers far fewer languages than Google Translate and the free tier caps document size.

Pro from $8.74/mowebmacwindowsiosandroidchrome-extension
25▲ 19
evidence / 100
3
Microsoft's assistant, free on the web and Windows, and embedded in Word, Excel, PowerPoint, Outlook and Teams with Microsoft 365 Copilot.

+ Works inside the Office apps you already use, drafting Outlook replies, summarizing Teams meetings and turning Word docs into PowerPoint decks.
− Results inside Excel and PowerPoint are often shallow compared with the standalone chat, which makes the $30 business seat hard to justify.

Copilot Pro $20/mo; Microsoft 365 Copilot $30/user/mowebwindowsmaciosandroid
25▲ 19
evidence / 100
4
Shortwave Free tier
An AI-first Gmail client whose assistant searches, summarizes, drafts and organizes your email in natural language.

+ Ask questions across your entire mailbox and have the assistant draft replies grounded in past threads.
− Gmail-only, and the bundled-threads inbox model takes getting used to.

webmaciosandroid
22▲ 20
evidence / 100
5
A keyboard-driven email client for Gmail and Outlook with AI drafting in your voice, inbox triage and auto-summaries.

+ Write with AI learns your sent mail and produces replies that sound like you, and Auto Summarize puts a one-line gist atop every thread.
− Expensive for an email client, and it only works on Gmail and Microsoft 365 accounts.

Starter from $25/mowebmacwindowsiosandroid
21▲ 17
evidence / 100
6
Lavender Free tier
A sales email coach that scores your draft in Gmail or Outlook and suggests edits to raise reply rates.

+ The real-time score and prospect research panel sit next to the compose box and make cold emails shorter and more specific.
− Scores reward a formulaic short style, and it is sales-specific rather than a general email assistant.

Starter $29/mochrome-extensionweb
16▲ 16
evidence / 100
7
ProWritingAid Free tier
A deep style and grammar checker with 20+ reports and AI rephrasing, aimed at fiction and long-form writers.

+ Reports on pacing, dialogue tags, repeated words and sticky sentences go far beyond what Grammarly checks.
− The volume of reports is overwhelming at first and the desktop apps can be sluggish on long manuscripts.

Premium from $10/mo billed annuallywebmacwindowschrome-extension
11▲ 2
evidence / 100
8
QuillBot Free tier
A paraphraser, grammar checker, summarizer and AI detector/humanizer popular with students.

+ The paraphraser's mode slider (fluency, formal, simple, creative) is the fastest way to rework a clumsy paragraph.
− Paraphrased text sometimes changes meaning, and its humanizer and detector are unreliable against serious detection tools.

Premium from $4.17/mo billed annuallywebmacwindowsiosandroidchrome-extension
11▲ 1
evidence / 100
9
Reverso Free tier
Translation with real-world example sentences in context, plus conjugation, dictionary and grammar checking.

+ Reverso Context shows how a phrase is actually used in bilingual sentences, which is what language learners need.
− The free site is ad-heavy and the plain translator is weaker than DeepL.

webmacwindowsiosandroidchrome-extension
11▲ 1
evidence / 100
10
A readability editor that flags long sentences, passive voice and adverbs, with an AI rewrite option in the Plus tier.

+ Color-coded highlighting makes dense writing visibly obvious in seconds, with no account needed for the free editor.
− It optimizes for short, plain prose and will nag you about complexity that is sometimes appropriate.

Plus $10/mo; desktop app $19.99 one-timewebmacwindows
10▲ 1
evidence / 100

Why switch?

Gemini instead of Grammarly if

  • you want the stronger public evidence (77 vs 25)
  • you need it on api

DeepL instead of Grammarly if

  • you need it on api

Microsoft Copilot instead of Grammarly

Works inside the Office apps you already use, drafting Outlook replies, summarizing Teams meetings and turning Word docs into PowerPoint decks.

Free alternatives to Grammarly

10 of 11

Where Grammarly ranks