# ForthWrite vs Success.ai

ForthWrite records 5,722 monthly visits with +4.6% month-over-month growth and Freemium, Free Trial, Contact for Pricing pricing. Success.ai records 547,073 monthly visits with +6.3% growth and Freemium, Free Trial pricing.

| Metric | [ForthWrite](https://openaitools.app/tool/forthwrite) | [Success.ai](https://openaitools.app/tool/success-ai) |
| :--- | :--- | :--- |
| Website URL | https://forthwrite.ai | https://www.success.ai |
| Categories | AI Email Writer, AI Email Assistant, AI Email Generator, AI Reply | AI Lead Generation, AI Sales, AI Email Writer, AI Email Marketing |
| Pricing Model | Freemium, Free Trial, Contact for Pricing | Freemium, Free Trial |
| Monthly Visits | 5,722 | 547,073 |
| MoM Growth Rate | +4.6% | +6.3% |
| Primary Market | United States | United States |
| Direct Visits | 2,249 | 42,498 |
| Review Score | 4.2 | 4 |
| Saved Count | 0 | 5 |
| Supported Platforms | Website | Website |

## 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)

## Success.ai

Success.ai is a B2B sales platform built around an AI-assisted prospecting and outreach workflow. Its core promise is simple: give sales teams and agencies access to a large contact database and the sending infrastructure to reach those prospects at scale. The platform advertises unlimited access to 700M+ verified contacts, including email addresses and phone numbers, along with buyer intent data to target prospects showing real interest signals.

Beyond the database, Success.ai bundles the outreach stack many teams otherwise assemble from several tools. You can connect unlimited email accounts, run email warmup to keep messages out of spam, and manage responses from a single unified inbox. Multichannel sequences let you reach prospects over email, LinkedIn, or phone within one campaign, and a kanban-style CRM tracks deals. An AI writer personalizes messages at scale in more than 100 languages.

Success.ai also offers custom and agency-oriented options such as done-for-you email account setup, white-label and agency features, and dataset products covering public LinkedIn profiles, company profiles, and employee records. It advertises a free signup with a clear upgrade path to paid plans for unlimited access, and the site is protected by a bot challenge, so automated previews may fail even though the product is active. It is an independent commercial product, not affiliated with any email or social platform it connects to.

**Pricing & Plans:** Freemium with a free account signup and paid plans for unlimited access; exact prices are shown on the Success.ai pricing page and a demo can be booked.

- **B2B lead database:** Lead Finder gives unlimited access to a database of 700M+ buyer emails and phone numbers, with search and targeting tools.
- **Buyer intent data:** Follow active buyers using interest signals based on specific topics or keywords, so outreach targets prospects showing real intent.
- **Email finder and enrichment:** Verify and enrich emails and phone numbers, and clean your lists before you start a campaign.
- **Unlimited email outreach:** Connect unlimited sending accounts, use email warmup to protect deliverability, and manage replies in one unified inbox.
- **AI writer and sequences:** An AI writer personalizes emails at scale in more than 100 languages, and multichannel sequences combine email, LinkedIn, and phone from one campaign.

**Strengths:** Large verified B2B contact database with intent data; All-in-one outreach: sending, warmup, inbox, and sequences; AI personalization in 100+ languages and agency/white-label options

**Limitations:** Homepage enforces a bot challenge, so some crawlers and previews may fail; Full unlimited access requires a paid plan; Effectiveness depends on list quality and deliverability setup

[Profile (Markdown)](https://openaitools.app/tool/success-ai.md)

## Frequently Asked Questions

### How do ForthWrite and Success.ai compare in monthly traffic?

ForthWrite has 5,722 monthly visits, while Success.ai has 547,073. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

ForthWrite has a month-over-month growth rate of +4.6%; Success.ai has +6.3%.

### How does pricing compare?

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. Success.ai: Freemium, Free Trial. Freemium with a free account signup and paid plans for unlimited access; exact prices are shown on the Success.ai pricing page and a demo can be booked.

## 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 | [Brevo](https://openaitools.app/tool/brevo) | 6,527,382 | +5.8% | Freemium | All-in-one customer platform for email, SMS, CRM, and automation | [.md](https://openaitools.app/tool/brevo.md) |
| 3 | [Instantly](https://openaitools.app/tool/instantly) | 2,336,279 | +6% | Paid, Contact for Pricing | Offers massive cold email volume infrastructure and built-in lead databases, but with fewer advanced autonomous prospecting agent features. | [.md](https://openaitools.app/tool/instantly.md) |
| 4 | [Clay](https://openaitools.app/tool/clay-2-0) | 1,267,465 | -2.7% | Freemium, Free Trial, Contact for Pricing | Unifies dozens of data enrichment providers and custom AI workflows, but requires more manual setup for cold email campaigns. | [.md](https://openaitools.app/tool/clay-2-0.md) |
| 5 | [Outreach](https://openaitools.app/tool/outreach) | 958,599 | +0.4% | Contact for Pricing | Delivers enterprise-grade revenue execution and conversation intelligence, but is overly complex for small teams and solo founders. | [.md](https://openaitools.app/tool/outreach.md) |
| 6 | [Smartlead](https://openaitools.app/tool/smartlead-ai) | 952,377 | +4.3% | Free Trial, Paid | Excels at email deliverability management and unlimited mailbox warmups, but lacks Success.ai's integrated B2B contact database search. | [.md](https://openaitools.app/tool/smartlead-ai.md) |
| 7 | [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) |
| 8 | [Reply.io](https://openaitools.app/tool/reply-io) | 193,261 | -1.7% | Free Trial, Paid, Contact for Pricing | Provides powerful multichannel outreach across email, phone, and LinkedIn, but comes at a significantly higher price point. | [.md](https://openaitools.app/tool/reply-io.md) |
| 9 | [FinalScout](https://openaitools.app/tool/finalscout-com) | 123,884 | -3.8% | Freemium, Free Trial, Paid, Contact for Pricing | Find verified work emails and write personalized outreach with AI | [.md](https://openaitools.app/tool/finalscout-com.md) |
| 10 | [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) |

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Source: https://openaitools.app/compare/forthwrite-vs-success-ai

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