Comparison

Grammar Checker vs Harold.

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Grammar Checker

Features
Read full description

Grammar checker app helps you to check and correct grammar, spelling, punctuation, and other writing mistakes with less effort. Our grammar check app scans your text, highlights the errors, and provides suitable suggestions to fix the error. To use this grammar checker for proofreading your write-ups, follow the below steps: • Type, paste, or upload a file from the device. • Tap on the “Check” button to proofread the text. • Choose a suitable suggestion to fix the error. • Tap on the “Resolve All” button to fix all issues at once. • Use the “Start Over” button to start a new session. Our grammar checker app uses AI technology to find grammatical errors in your write-ups. It highlights the grammar mistakes in red color and provides the right grammar suggestion to fix them. Some helpful features of this grammar app are listed below: • This app lets you upload files from the local storage of your device in .txt, .doc, .docx, and .pdf formats. • It uses AI technology to find and correct grammar, punctuation, and spelling mistakes in your content in no time. • Our grammar checker shows the number of grammar and spelling errors at the top of the result box in separate tabs. • It highlights the grammar errors in “red” and the spelling errors in “yellow” colors. • This app provides the right suggestion to correct writing errors to make your content error-free. • It counts the total number of words you have typed into the input box. • You can click on the “Copy” icon to copy and paste the grammatically correct text wherever you want at the same time. • After correcting the grammar errors, you can use its “download” feature to save the result text into your device’s local storage. • The “History” feature lets you access your previous documents without any hassle. You can further copy or download the content in the “History” section quickly and effortlessly.

About

Harold.

This app allows writers to share drafts and receive precise, inline feedback from friends. Its distraction-free editor helps focus on content, and shared drafts enable collaborators to comment directly on specific text passages.

Highlights
  • Distraction-free writing editor
  • Inline commenting on text
  • Share drafts directly from app
  • Collaborative feedback tool
  • Supports various written content
Features
Read full description

Harold is for writers who want real feedback before they publish. Write a draft, share it with a friend, and let them leave inline comments to the exact words they're responding to. HOW IT WORKS Write your draft in Harold's distraction-free editor. When it's ready, share it with friends directly from the app. They'll see your draft on their phone, highlight any passage, and leave a comment tied to that exact moment in the text. Harold is for essays, short stories, cover letters, speeches, newsletters, or anything else you've written that needs a second pair of eyes before it goes out into the world.

Screenshots

Grammar Checker4 screens
Harold.4 screens

Verdict

The call

The clearest difference is update cadence: Harold. at every 2 weeks against Grammar Checker's every 9 months. Grammar Checker's advantage is iOS requirement (13.0 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Grammar Checker ships an update every 9 months, Harold. every 2 weeks. The most recent releases landed on October 27, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
Grammar Checker versus Harold.: the parameters behind the verdict, then further details
ParameterGrammar CheckerHarold.
PriceFreeFree
Rating—5.0 (5 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—5 — better
Update frequencyEvery 9 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.0 — better18.6
Further details — not scored
Size29 MB3 MB
Age rating4+12+
DeveloperAbdul RehmanSAI SIDDHI VINAYAK KARNATI

In-app purchases

None

Grammar Checker

No in-app purchases

None

Harold.

No in-app purchases

Questions

Is Grammar Checker free?
Grammar Checker is free to download, with no in-app purchases.
Is Harold. free?
Harold. is free to download, with no in-app purchases.
Do Grammar Checker or Harold. have ads?
Neither Grammar Checker nor Harold. shows ads.
Which is updated more often, Grammar Checker or Harold.?
Grammar Checker ships an update every 9 months, and Harold. every 2 weeks. Most recently, Grammar Checker was updated on October 27, 2026 and Harold. on October 31, 2026.

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