Is TypoGrammar really free?

Yes - every grammar lesson, the 50-question verb tenses quiz, the AI grammar checker, and all six PDF guides are free to use. No account, no card, no trial. We keep it free by running a few unobtrusive ads and offering optional premium IELTS/TOEFL ebooks.

Do I need to create an account to track my progress?

No. Your completed topics and best quiz scores are stored locally in your browser, so the same device automatically remembers where you left off. If you clear your browser data, progress will reset.

Which exams does TypoGrammar prepare me for?

Our content is mapped to IELTS (Academic & General), TOEFL iBT (2026 format), Cambridge (B1-C2), PTE Academic, and the Duolingo English Test. You'll find dedicated writing-template, reading-strategy, and vocabulary pages for each exam.

How is TypoGrammar different from Grammarly or Duolingo?

Grammarly fixes your sentences but rarely teaches the underlying rule. Duolingo gamifies short drills. TypoGrammar focuses on understanding - every lesson explains why a structure works, with examples, mistakes to avoid, and a quick quiz to lock it in.

How long does it take to see results with TypoGrammar?

Most learners report a noticeable improvement in writing accuracy within 2-3 weeks of daily 15-minute sessions. The verb-tenses quiz gives you a personal weak-area breakdown, so you can target exactly the tenses you keep getting wrong.

Can I use TypoGrammar on my phone?

Yes - the entire site is mobile-first. Lessons, quizzes, and the grammar checker all work in any modern mobile browser. There is no app to install.

What is the difference between weather and whether?

'Weather' refers to atmospheric conditions like rain, sun, snow, and temperature (The weather is lovely today. I don't like cold weather). 'Whether' is a conjunction meaning 'if' or expressing alternatives (I don't know whether she's coming. Whether you like it or not, we must go).

Is it 'weather or not' or 'whether or not'?

The correct phrase is 'whether or not' — using the conjunction 'whether'. 'Weather or not' is incorrect. Example: 'We are going whether or not it rains.' You can also use 'whether' alone: 'I'm not sure whether she'll come.'

Weather vs. Whether: What's the Difference?

Quick Answer

weather = noun/verb about climate (sun, rain, snow, temperature)

whether = conjunction meaning "if" or expressing alternatives

Explanation

WEATHER (noun/verb)

Atmospheric conditions; to survive or endure

"The weather is beautiful today." (noun)

"Cold weather is coming." (noun)

"We weathered the storm." (verb)

WHETHER (conjunction)

Introduces alternatives or indirect yes/no questions

"I wonder whether she'll come." (if)

"Whether you like it or not..." (alternatives)

"I don't know whether to go." (if)

Memory trick: Weather contains "eat" — think of weather as something you can almost feel/experience (heat, cold). Whether starts like "which" — it expresses a choice or question.

Examples

✔Check the weather forecast before going out. (noun)

✔I'm not sure whether the meeting is today or tomorrow. (conjunction)

✔The bad weather cancelled the match. (noun)

✔We'll go whether or not it rains. (alternatives)

✘I don't know weather she's coming.

✘The whether has been terrible this week.

Common Mistakes

Incorrect: I can't decide weather to accept the offer.

Correct: I can't decide whether to accept the offer. (whether = if)

Incorrect: The whether forecast says it will snow.

Correct: The weather forecast says it will snow. (weather = climate)

Practice

Fill in the blank:

"_____ the _____ is good or bad, the festival will continue."