AI · alternatives · 2026

24 alternatives to Castly

Transform ideas into content, with AI supercharge

Castly is an AI-powered writing and learning platform designed for bloggers, marketers, learners, and content creators. It helps users overcome writer's block by enabling fast content creation through conversational AI… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier. Castly launched in 2023; newer entries below may have overtaken it.

1
Refly▲492
Smart editor that helps you write better content, faster
2016 · its alternatives →
2
Writerly▲74
AI Content Generation and Marketing Automation Platform
2022 · writerly.ai · its alternatives →
3
Craftly.AI▲309
AI copywriting tool for marketing & sales copy
2021 · craftly.ai · its alternatives →
4
Talently.ai▲352
AI Interviewer that screens candidates for any role
2023 · interview.talently.ai · its alternatives →
5
Letterly▲937
Turn your speech into well-written text
2024 · letterly.app · its alternatives →
6
Castofly▲215
Simple solution to create and collaborate on videos
2022 · castofly.com · its alternatives →
7
Behavly▲182
Elevate your website with purposeful, targeted small tweaks
2023 · behavly.com · its alternatives →
8
Agentlyfree tier, from $33/mo▲336
Agently is an AI Work OS where documents, tasks, team chat, and integrations are fully interconnected, and AI employees operate inside that shared workspace. Instead of prompting AI in isolation, agents can read project context, turn strategy docs into tasks, coordinate with teammates, run research/outreach/content workflows, update boards, and push results back into the system or external tools. The workspace acts as persistent memory, so work continues instead of resetting every prompt. Happy to answer any questions
Jul 2026 · agently.dev · its alternatives →
9
Smartly.AI▲211
AI voice platform for Google Assistant & Amazon Alexa
2017 · smartly.ai · its alternatives →
10
Writeasily▲81
Write better marketing copy and content with AI
2023 · writeasily.com · its alternatives →
11
Writerly, content generation AI that can write just about anything▲9
Writerly is a SaaS platform that offers no-code AI productivity tools with everything you need to scale sales, marketing, ecommerce, UX, product, and more.
2022 · writerly.ai · its alternatives →
12
Castofly▲76
Video creator for building and sharing knowledge
2021 · castofly.com · its alternatives →
13
Typely▲222
Typely helps you write better english
2017 · typely.com · its alternatives →
14
Modly▲69
An AI assistant for everyone
2023 · modly.ai · its alternatives →
15
Raply.ai▲27
AI-powered email magic. Write faster, smarter, globally.
2023 · raply.ai · its alternatives →
16
Creativly▲91
Community-powered AI visual platform with unique generators
Apr 2026 · creativly.app · its alternatives →
17
Refly▲17
The Open Source AI native content creation engine
2025 · refly.ai · its alternatives →
18
Notly▲90
The world's most advanced AI writing assistant for Notion
2022 · getnotly.com · its alternatives →
19
Writerly▲87
Start thinking like a writer
2022 · russell-archer.github.io · its alternatives →
20
Authorly▲72
Connecting authors - read, write & explore
2022 · its alternatives →
21
Writally▲107
Content recipes to create powerful content in 50% less time
2017 · writally.com · its alternatives →
22
Writero▲90
Create marvellous content 10x faster with AI
2023 · its alternatives →
23
Writely AI▲75
Write more content, with less time
2022 · writelyai.com · its alternatives →
24
Musely▲11
Ai-powered Content-creation Ai-writing Translation
2025 · musely.ai · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →