Get Started

Before you enroll,see what yourwriter can do.

Every Letterly student begins with a coach-graded Writing Growth Index. Choose the path that fits - a live 45-minute Trial Class or a free take-home Assessment - and we'll hand you a plan.

  • Coach-graded, not AI-graded - every report written by a Letterly writing coach.
  • Specific strengths and weaknesses marked inline on your child's draft.
  • A single recommended next course, picked for your writer.
Choose Your Path

3 minutes to start - No card for Assessment

L

Writing Growth Index · Report #0427

Maya Chen · Grade 7

Issued Apr 18,

2026

Coach · M.

Alvarado

WGI Score

1240/1600

Writing at a Grade 8-9 level · Mid-Apprentice band

400 ·

Emerging

800 ·

Developing

1200 ·

Apprentice

1600 ·

Mastery

Recommended Next Step

The Letterly Journal · 12-Week Track

Builds structure & evidence - Maya's two growth areas

View program →

Choose Your Path

Same rubric. Same coaches.Different first steps.

Pick the one that fits this week - you can always do both.

Most Popular

Path A · Live with a coach

The Trial Class

$50

One-time

45 minutes, one-on-one, with a coach who reads, writes, and edits alongside your student.

  1. 1Pick a time that works - we run sessions 7 days a week.
  2. 215 min reading · vocabulary & comprehension with the coach.
  3. 315 min writing · student writes live, coach observes.
  4. 415 min live edits · coach marks up the draft on-screen.
  5. 5WGI report delivered within 24 hours.
Book a Trial Class · $50 →

Path B · Take-home

The WritingAssessment

Free

No card

Your student writes at home on their own time. A coach grades it, line by line.

  1. 1Register your student in under 2 minutes.
  2. 2We send a grade-matched prompt. Student writes a ~400-word response on their own time.
  3. 3Submit the draft through our portal.
  4. 4A coach reads end-to-end and marks it up with inline comments.
  5. 5You receive the WGI report in 3 business days.
Register for the free Assessment →

Inside the Trial Class

Forty-five minutes
with a working coach.

You're welcome to sit in. Most parents do for the first ten minutes - then step away once the coach has their student's attention.

15 Min

Read

Coach brings a grade-matched article. They read it together, unpack vocabulary, and discuss what it's actually saying.

15 Min

Write

Student writes a timed response to a prompt drawn from the reading. Coach watches the process, not just the output.

15 Min

Edit live

Coach edits the draft on-screen while the student watches. Tracked changes, narrated reasoning, transferable moves.

Trial fee is credited toward any program you enroll in afterward.

Book a Trial Class · $50 →

The Onramp

Two paths that end in the same place.

However you start, you finish with the same artifact - a coach-written WGI and a recommended program.

Pick Your PathTwo paths leading from Pick your path to WGI Report and Your Course. Path A (Trial Class, $50, Live 45 min): Book a time, Read with coach, Write live, Live edits. Path B (Writing Assessment, Free, At Home): Register online, Get the prompt, Write at home, Coach grades.PATH A · THE TRIAL CLASS · $50 · LIVE 45 MINPATH B · THE WRITING ASSESSMENT · FREE · AT HOMEYOU ARE HEREPick yourpathBook a timeAny day, 7 days/weekRead with coach15 min · comprehensionWrite live15 min · timedLive edits15 min · narratedRegister online2 min · no cardGet the promptGrade-matched · emailedWrite at home~400 words · any timeCoach gradesEnd-to-end · marked upBOTH PATHS →WGI Reportcoach-written · 1–160RECOMMENDEDYour CourseEnroll · skip · compare

The Artifact

What is the WritingGrowth Index?

The WGI is a 1-to-1600score benchmarking your student's writing against a coach-calibrated rubric built from 12,000+ graded drafts.

It isn't an algorithm. A Letterly coach reads the whole draft, scores each of six dimensions, and writes the feedback you see. The number is the summary - the report is the substance.

Readiness

Tells you which Letterly program will push - not overwhelm - your student.

Benchmarks

Re-score at every milestone to see what's actually changing.

L

Writing Growth Index · Report #0427

Maya Chen · Grade 7

Issued Apr 18, 2026

Coach · M. Alvarado

WGI Score

1240/1600

Writing at a Grade 8-9 level · Mid-Apprentice band

400 · Emerging

800 · Developing

1200 · Apprentice

1600 · Mastery

Ideas & Argument

1298

Structure & Flow

1180

Vocabulary & Diction

1358

Voice & Craft

1228

Grammar & Mechanics

1168

Evidence & Detail

1248

Coach Feedback · Strengths

  • +Sharp topic sentences anchor each paragraph - you're clearly writing with a point in mind.
  • +Unusual vocabulary choices ("threadbare," "gravitate") used correctly and in context.

Areas to Strengthen

  • −Transitions between paragraphs feel abrupt; the reader loses the thread in the middle third.
  • −Claims need more textual evidence - aim for one cited moment per argument.

Recommended Next Step

The Letterly Journal · 12-Week Track

Builds structure & evidence - Maya's two growth areas

View program →

What Parents Say

“The trial class was the first time in years that someone told us, specifically, what my daughter needed to work on. Her coach didn't just grade - she taught.”

- Parent of a 7th Grader · WGI 1180 - 1340 over 12 weeks

Common Questions

Before you start.

Grades tell you how a draft did against one rubric on one day. The WGI scores six specific dimensions (ideas, structure, vocabulary, voice, mechanics, evidence) on a fixed scale, so you can see exactly where your student sits and what to work on.

Ready When You Are

Two paths. Onegreat report.

Start live or start free. Either way, you'll know where your writer stands by this time next week - with a coach-written WGI and a specific next step.

Pick a path →

Path A · $50

The Trial Class

Live 45 min · Report in 24h

Path B · Free

The Writing Assessment

At home · Report in 3 days

You Receive

WGI Report + Course Recommendation