# Crystal vs ForthWrite

Crystal records 0 monthly visits with — month-over-month growth and Freemium pricing. ForthWrite records 5,722 monthly visits with +4.6% growth and Freemium, Free Trial, Contact for Pricing pricing.

| Metric | [Crystal](https://openaitools.app/tool/crystal) | [ForthWrite](https://openaitools.app/tool/forthwrite) |
| :--- | :--- | :--- |
| Website URL | https://chromewebstore.google.com/detail/crystal/nmaonghoefpmlfgaknnboiekjhfpmajh | https://forthwrite.ai |
| Categories | AI Sales Assistant, AI Sales, AI Email Assistant, AI Copywriting | AI Email Writer, AI Email Assistant, AI Email Generator, AI Reply |
| Pricing Model | Freemium | Freemium, Free Trial, Contact for Pricing |
| Monthly Visits | 0 | 5,722 |
| MoM Growth Rate | — | +4.6% |
| Primary Market | Global | United States |
| Direct Visits | 0 | 2,249 |
| Review Score | 4.4 | 4.2 |
| Saved Count | 1 | 0 |
| Supported Platforms | Browser Extension | Website |

## Crystal

Crystal is built around the idea that deals and relationships move faster when you adapt to the other person's personality instead of your own default style. The Chrome extension predicts a contact's DISC-style personality from their public footprint and surfaces it directly inside LinkedIn, Gmail, Salesforce, HubSpot, Outreach, and Google Meet, so reps see suggested talking points, writing adjustments, and selling approaches in context. A sidebar and a new-tab workspace keep tasks, calendar events, and today's plan in one place.

Beyond the extension, Crystal runs a full assessment and coaching product. Users take free personality assessments as often as they like and keep every result; Premium ($49/month or $490/year) unlocks the written advice, weekly insights, career mapping, and multi-year planning that Crystal generates from those results. Team plans cost $49 per seat, per month, with full profiles shared across the team by default.

For organizations and developers, Crystal offers Team Assessments starting at $500/year, custom-priced Buyer Profiles for revenue teams, and a credit-based Personality API on REST v4 and MCP. The API returns validated DISC types, archetypes, traits, and communication playbooks, and works inside Claude, ChatGPT, Copilot, and other MCP-compatible agent frameworks. Crystal is operated by Crystal Project Inc.

**Pricing & Plans:** Freemium. Every personality assessment is free forever with no timed trial, and one free sample of each kind of AI-generated advice is included. Crystal Premium is $49/month or $490/year, and Crystal Premium Team is $49 per seat, per month. Team Assessments start at $500/year with tiers at $1,500 and $5,000/year. Buyer Profiles are custom-priced, and the Personality API is metered per profile created and per read.

- **Personality predictions on LinkedIn:** One-click DISC-style personality predictions appear on LinkedIn profiles and inside Salesforce, HubSpot, Outreach, and Google Meet, so you know how to open, write, and sell to each contact.
- **Adaptive messaging guidance:** Crystal suggests how to talk, write, and pitch for each person's communication style, including an API endpoint that rewrites a drafted email to fit the reader.
- **Free assessments and personal coaching:** Unlimited free assessments with retained results, plus Premium coaching that maps your career, your working relationships, and 1-, 5-, 10-, and 20-year plans.
- **Team assessments and reports:** Run individual, one-on-one, conflict, onboarding, meeting, and team reports from annual tiers starting at $500, with a Customer Success Manager included.
- **Personality API and MCP server:** Credit-based REST v4 and MCP access to validated DISC profiles, archetypes, traits, and communication playbooks for products, research, and AI agents.
- **New-tab focus workspace:** An optional new-tab board shows tasks, calendar events, and today's plan, with morning check-ins and evening reflections that feed your coaching.

**Strengths:** Free tier is genuinely useful: unlimited assessments with results that never expire and no timed trial.; Personality insights appear in the tools sales teams already use, including LinkedIn, Gmail, Salesforce, HubSpot, Outreach, and Google Meet.; Clean upgrade path from a $49/month individual plan to team seats, custom Buyer Profiles, and a metered API.; Transparent public pricing across individual, team, and enterprise tiers.

**Limitations:** The most valuable AI-written advice is gated behind Premium; the free plan only gives one sample of each advice type.; Premium at $49/month is priced for professionals and revenue teams, not casual users.; Personality predictions are inferences from public data, so they can be wrong and should be treated as guidance rather than fact.; Buyer Profiles has no self-serve checkout and requires a sales conversation.

[Profile (Markdown)](https://openaitools.app/tool/crystal.md)

## ForthWrite

ForthWrite is an AI writing assistant aimed at people who live in their inbox. Instead of asking you to learn a new tool, it installs as a Gmail and Outlook web extension and adds a drafting widget directly to the compose box. On first use it analyses emails you have already sent to build a voice profile, so the very first suggested reply starts close to something you would actually send. The model is tuned for nuance and can also take a manual persona prompt when you want a specific register.

The product family spans three levels. Inbox is the individual product, with a free tier that provides 10 AI drafts a week plus voice matching, and a Pro tier that unlocks auto-drafting, batch drafting of long threads, a Prompt Lab for versioning and A/B testing prompts, recipient- and intent-aware drafting, voice dictation, smart retrieval over your past mail, and performance analytics. Teams extends Pro drafting to every seat in an organisation with a shared voice baseline, a shared prompt library, a team analytics dashboard, and a review record showing what was drafted, what changed, and which model produced it.

ForthWrite also sells consulting to professional-services firms such as accounting, tax, advisory, lending, and brokerage practices. Those engagements begin with a free 30-minute diagnostic and can extend into a paid audit, a 30-60 day roadmap, and implementation with written SOPs. The company is clear about its operating principle: ForthWrite drafts, and a person sends, so accountability and signature stay with the user.

**Pricing & Plans:** Freemium with a free forever tier (10 drafts per week, voice matching, no card required), Pro at $24/month billed annually ($29 monthly), and Teams from $59/seat/month billed annually ($79 monthly, 2-seat minimum). All paid plans start with a 14-day free trial; Teams gets a 30-day trial. An optional Bring Your Own API Key mode takes roughly 17% off. Consulting is scoped separately per firm.

- **Voice matching from your sent mail:** ForthWrite reads emails you have already sent to build a voice profile, then refreshes it roughly every 50 captured emails so drafts keep tracking how your writing evolves.
- **Auto-draft and batch drafting:** Pro users can have replies waiting when they open Gmail, and clear dozens of threads in parallel instead of writing each one by hand.
- **Recipient- and intent-aware drafting:** Drafts adapt tone to the person you are replying to and treat follow-ups, intros, and status updates as genuinely different jobs rather than one generic template.
- **Prompt Lab and performance analytics:** Version control and A/B test your prompts, then track acceptance rate, voice match, and intent mix on a measurable improvement curve.
- **Team standards and compliance guardrails:** On Teams, a shared voice baseline and shared prompt library keep every seat consistent, and a draft that breaks a firm rule stops the preparer with a written reason.

**Strengths:** Drafts pick up your real tone because the voice profile is built from mail you have already sent; Works inside Gmail and Outlook web with no migration or new inbox to learn; Strong free tier with 10 drafts a week and voice matching included, no card required; Teams adds shared prompts, team analytics, and a review record that firms usually need

**Limitations:** Web-based Gmail and Outlook only; there is no full desktop client experience; Full value depends on having a decent history of previously sent emails for the voice profile; Consulting engagements are custom-scoped, so pricing is not published

[Profile (Markdown)](https://openaitools.app/tool/forthwrite.md)

## Frequently Asked Questions

### How do Crystal and ForthWrite compare in monthly traffic?

Crystal has 0 monthly visits, while ForthWrite has 5,722. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Crystal has a month-over-month growth rate of —; ForthWrite has +4.6%.

### How does pricing compare?

Crystal: Freemium. Freemium. Every personality assessment is free forever with no timed trial, and one free sample of each kind of AI-generated advice is included. Crystal Premium is $49/month or $490/year, and Crystal Premium Team is $49 per seat, per month. Team Assessments start at $500/year with tiers at $1,500 and $5,000/year. Buyer Profiles are custom-priced, and the Personality API is metered per profile created and per read. ForthWrite: Freemium, Free Trial, Contact for Pricing. Freemium with a free forever tier (10 drafts per week, voice matching, no card required), Pro at $24/month billed annually ($29 monthly), and Teams from $59/seat/month billed annually ($79 monthly, 2-seat minimum). All paid plans start with a 14-day free trial; Teams gets a 30-day trial. An optional Bring Your Own API Key mode takes roughly 17% off. Consulting is scoped separately per firm.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Grammarly](https://openaitools.app/tool/grammarly) | 58,867,412 | -1.5% | Freemium | Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides. | [.md](https://openaitools.app/tool/grammarly.md) |
| 2 | [Success.ai](https://openaitools.app/tool/success-ai) | 547,073 | +6.3% | Freemium, Free Trial | AI sales platform for unlimited B2B leads and outreach | [.md](https://openaitools.app/tool/success-ai.md) |
| 3 | [HyperWrite](https://openaitools.app/tool/hyperwrite-ai) | 255,429 | +34.4% | Freemium | AI writing assistant with autocomplete, research, and a Chrome extension | [.md](https://openaitools.app/tool/hyperwrite-ai.md) |
| 4 | [Salesforge](https://openaitools.app/tool/salesforge) | 236,658 | -9.9% | Free Trial, Paid | Unlimited LinkedIn and email outreach, powered by AI SDR agents | [.md](https://openaitools.app/tool/salesforge.md) |
| 5 | [Humantic AI](https://openaitools.app/tool/humantic-ai) | 149,707 | +7.7% | Contact for Pricing | Buyer Intelligence that tells sales who the buyer really is | [.md](https://openaitools.app/tool/humantic-ai.md) |
| 6 | [SalesRobot](https://openaitools.app/tool/salesrobot) | 125,750 | +13.7% | Free Trial, Paid | Automated, personalized LinkedIn and email outreach that books meetings | [.md](https://openaitools.app/tool/salesrobot.md) |
| 7 | [WriteMail.ai](https://openaitools.app/tool/writemail-ai) | 79,919 | -29.9% | Freemium | Turn a few key points into polished, on-tone emails | [.md](https://openaitools.app/tool/writemail-ai.md) |
| 8 | [Smart Assistant by Mailbutler](https://openaitools.app/tool/smart-assistant) | 47,200 | -8.7% | Freemium, Free Trial, Paid | An AI email assistant that drafts, summarizes, and perfects your messages in place | [.md](https://openaitools.app/tool/smart-assistant.md) |
| 9 | [Attention](https://openaitools.app/tool/attention) | 43,948 | +8.7% | Contact for Pricing | Proactive AI sales agents that learn from every conversation and execute the next move | [.md](https://openaitools.app/tool/attention.md) |
| 10 | [Compose AI](https://openaitools.app/tool/compose) | 34,896 | -48.1% | Freemium, Free Trial, Contact for Pricing | AI autocomplete that finishes your sentences wherever you type | [.md](https://openaitools.app/tool/compose.md) |

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Source: https://openaitools.app/compare/crystal-vs-forthwrite

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