tells
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tells vs Grammarly Tone:
message intelligence vs grammar correction

tells gives seven relationship signals from a message someone sent you and suggests a next step. Grammarly Tone Detector flags passive voice and word choice in text you are writing. They do different jobs on different text in different directions.

tells — use when
  • You want to read a message someone sent you for hidden intent and signals
  • You need seven named relationship signals: hesitation, boundaries, ghost-risk, intent
  • You are a coach, therapist, or communication practitioner reading client messages
  • You want a next-step suggestion based on what the message is carrying
  • You want a free tier with no account required
grammarly tone — use when
  • You want to improve your own writing as you draft it
  • You need grammar, spell-check, and clarity suggestions in real time
  • You want to know how your message will sound to a reader before you send it
  • Your team needs a style guide enforced across documents and emails
  • You need a browser extension + Google Docs / Word integration

feature comparison

feature tells grammarly tone detector
Reads signals in text written by someone else✓ core functionpossible but not the purpose
7 relationship signals per message✓ yes– no (single tone label)
Hesitation & ghost-risk detection✓ yes– no
Boundary pattern & soft-yes/no signals✓ yes– no
Next-step suggestion after analysis✓ yes– no
Grammar & spell-check correction– not the purpose✓ core function
Real-time writing assistant (as you type)– no✓ yes
Google Docs / Word / browser integration– no✓ yes
WordPress plugin available✓ free, wp.org approvedbrowser extension only
Free tier — no card required✓ 10 analyses/dayfree tier (grammar, basic tone)
Pricing (entry paid plan)Pro from $29/moPro ~$12/mo (annual)
Designed for practitioner / client intake use✓ purpose-built– no

the fundamental difference: whose text, which direction

Grammarly Tone Detector works on text you are writing. It sits beside your cursor and tells you whether your message is coming across as confident, tentative, or formal before you hit send. The goal is to make your own writing clearer and better-received. Grammarly is an outbound writing quality tool.

tells works on text someone else wrote and sent to you. You paste a client's intake response, a follow-up message, or a contact-form submission, and tells reads what signals that text is carrying: how transparent the writer is being, whether there is hesitation or avoidance, whether their intent is clear, and whether boundary-setting language or escalation framing is present. tells is an inbound message intelligence tool.

This is not a subtle distinction. Grammarly improves your output. tells interprets someone else's input. If you are a coach or therapist reading what a client sent you, Grammarly is not the right tool for that job. It will flag grammar issues in the client's text rather than explaining what the message is actually carrying relationally.

where grammarly tone is right

Writing quality and professional polish. If you send a lot of professional emails, reports, or posts and want real-time corrections as you type, Grammarly is excellent. The tone detector is particularly useful when you are unsure whether a message you drafted sounds too blunt or too passive — it surfaces that before you send.

If you run a team and want consistent writing style across documents, Grammarly Business adds a style guide layer. For editorial teams, agencies, and corporate communication, Grammarly is a better fit than tells.

where tells is right

Practitioner signal-reading. Coaches, therapists, executive coaches, HR consultants, and communication practitioners regularly read messages that carry more than their literal content — avoidance, unclear commitment, hidden stress, boundary framing. tells surfaces these signals structurally and consistently, so you can probe the right things in your next session or call rather than guessing.

The WordPress plugin makes tells embeddable in a practice site — a client can fill in an intake form, and the tells analysis is surfaced alongside their submission. Grammarly has no equivalent practitioner-intake workflow.

The verdict: use Grammarly when you need to improve your own writing in real time. Use tells when you need to understand what someone else's message is actually carrying. They are not competing for the same job — and many practitioners use both.

try tells free — no account, no card

Paste any message, get seven relationship signals and a next-step suggestion in seconds.

open tells →

frequently asked questions

What is the difference between tells and Grammarly Tone Detector?
Grammarly Tone Detector analyses your own writing as you draft it — flagging whether your message sounds confident, tentative, or friendly. tells analyses text written by someone else and returns seven relationship signals describing what the sender's message is carrying: hesitation, avoidance, boundary patterns, clarity of intent, and escalation framing. Grammarly helps you write better. tells helps you understand what someone else actually means.
Does Grammarly detect hesitation or ghost-risk signals?
No. Grammarly produces a single overall tone label per message — 'confident', 'tentative', 'friendly', 'formal'. It does not produce relationship signals like ghost-risk, soft-yes / soft-no framing, boundary patterns, or escalation framing. tells returns seven named signals per message with a structural interpretation of what the message means relationally, not just an editorial label.
Can tells and Grammarly be used together?
Yes, and they serve complementary purposes. Grammarly helps you write clear, well-toned outgoing messages. tells helps you read what incoming messages are carrying. A coach might use Grammarly when drafting a response to a client, and tells to analyse the client's original message before replying. They are not competitors in practice — they operate on different texts for different goals.
Is tells free compared to Grammarly?
Both have a free tier. Grammarly's free tier includes basic grammar and spell checking with limited tone detection. Grammarly Pro with full features starts at around $12 per month on annual billing. tells is free for up to 10 message analyses per day — no account, no credit card. tells Pro is available for higher volume. The tells WordPress plugin is also free on wordpress.org.
What are the seven tells relationship signals?
tells returns: transparency (how openly the person is disclosing), assertiveness (directness and confidence in the message), emotional tone (warmth, tension, or neutrality), boundary awareness (signs of boundary-setting or avoidance), empathy index (perspective-taking or emotional reciprocity), clarity of intent (how clear the actual ask or goal is), and escalation framing (urgency, pressure, or conflict escalation patterns). Each signal is explained structurally, not just labelled.
Does Grammarly work on messages I received, not just text I am writing?
Grammarly can display tone analysis on any text you highlight or paste into its editor — including messages you received. However, it will flag writing quality and produce a single tone label, not relationship signals. Pasting a client's message into Grammarly may flag it as 'tentative' but will not tell you whether it contains ghost-risk, boundary avoidance, or unclear commitment signals. That signal layer is tells' purpose.
Which tool is better for therapists and coaches?
For reading client messages and intake responses, tells is purpose-built for that job. It returns seven named signals that are directly relevant to practitioner work: boundary patterns, escalation framing, hesitation markers, and clarity of intent. Grammarly is a better tool for improving the quality of your own written communications with clients. Many practitioners use both for their respective jobs.