Software Alternatives, Accelerators & Startups

Perplexity.ai VS CipherWrite

Compare Perplexity.ai VS CipherWrite and see what are their differences

Perplexity.ai logo Perplexity.ai

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CipherWrite logo CipherWrite

CipherWrite.com is the #1 free book writing app and secure writing software. Write your novel, journal, or memoir with zero-knowledge encryption. Better than Hermit and Standard Notes.
  • Perplexity.ai
    Image date //
    2024-07-16
  • CipherWrite landing page
    landing page //
    2026-03-25
  • CipherWrite dashboard
    dashboard //
    2026-03-25
  • CipherWrite Setting
    Setting //
    2026-03-25
  • CipherWrite Advanced TODO List
    Advanced TODO List //
    2026-03-25

CipherWrite is a privacy-first writing and journaling app with true end-to-end, zero-knowledge encryption, designed for novels, private journals, and long-form writing that only you can read. It runs as a free, cross-platform PWA on Web, Mac, Windows, Linux, iOS, and Android, with client-side keys, anonymous sync, and no trackers or AI training on your data. CipherWrite adds optional, boundaries-respecting AI for brainstorming and editing, plus tiers from a free local-only plan to pro and enterprise options with encrypted cloud vaults, AI credits, image uploads, and self-hosted deployments

Perplexity.ai

Pricing URL
-
$ Details
-
Platforms
-
Release Date
-
Startup details
Country
United States

CipherWrite

$ Details
freemium $11 / Monthly (Pro)
Platforms
Notion
Release Date
2026 January
Startup details
Country
India
State
chhattisgarh
City
Kanker
Founder(s)
Aashish Sarva
Employees
1 - 9

Perplexity.ai features and specs

  • User-Friendly Interface
    Perplexity.ai features an intuitive and easy-to-use interface, making it accessible for users of varying technical expertise.
  • Advanced AI
    Utilizes state-of-the-art AI models to provide accurate and relevant answers to a wide range of queries.
  • Speed
    Provides quick responses, improving user experience and efficiency.
  • Versatility
    Capable of answering a diverse set of questions from different domains, making it a versatile tool.
  • Free to Use
    Offers its features at no cost, lowering the barrier to entry for users.

Possible disadvantages of Perplexity.ai

  • Data Privacy
    As with any AI platform, there could be concerns about how user data is collected, stored, and used.
  • Dependency on Internet
    Requires a stable internet connection to function properly, limiting accessibility in areas with poor connectivity.
  • Complex Queries
    May struggle with highly complex or niche queries that require deep subject matter expertise.
  • Limited Personalization
    Does not offer extensive customization or personalization for individual users' preferences and needs.
  • Potential for Inaccurate Information
    Despite advanced algorithms, there is always the risk of generating incorrect or misleading information.

CipherWrite features and specs

  • book writing/diary writing
    end to end encrypted book and dairy writing
  • AI brainstroming
    AI Brainstorming: Connected Story Engine Cure writer's block instantly. Generate wild premises, deep character profiles, established narrative structures, and unpredictable plot twists.
  • Advanced TODO_LIST
    categorized to-do list

Analysis of Perplexity.ai

Overall verdict

  • Overall, Perplexity.ai is considered a valuable tool for users who need quick access to reliable information and want to delve deeper into topics without sifting through endless sources. It is an effective application of AI technology in the domain of research and knowledge discovery.

Why this product is good

  • Perplexity.ai is designed as a powerful AI-powered research tool that uses natural language processing to provide informative and concise answers to user queries. It harnesses various sources to deliver accurate and relevant information, making it useful for research tasks and quick fact-checking. The tool's efficiency in parsing through vast amounts of data and delivering precise responses is a key feature that users appreciate.

Recommended for

  • Students needing supplementary information for academic purposes.
  • Professionals conducting research or requiring quick access to comprehensive data.
  • Anyone looking for a reliable AI tool to assist with general inquiries and knowledge expansion.

Analysis of CipherWrite

Overall verdict

  • I don't have verified information about a specific product or service called 'CipherWrite' at cipherwrite.com, so I can't provide a reliable assessment of its quality.

Why this product is good

  • No verified data available about this specific product's features, pricing, or performance
  • Unable to confirm the legitimacy or current status of this website/service
  • Cannot assess user reviews, reputation, or track record without confirmed information
  • Providing a fabricated assessment could mislead you into making a poor decision

Recommended for

  • Anyone considering this service should first verify it directly by visiting the website
  • Check independent review sites like Trustpilot, G2, or Reddit for user experiences
  • Look for information about the company's founding, team, and business model
  • Consider reaching out to their support team with questions before committing
  • Research whether the domain has any red flags via WHOIS lookup or scam-checking sites

Perplexity.ai videos

Perplexity.ai, Explained in 45 Seconds

CipherWrite videos

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Category Popularity

0-100% (relative to Perplexity.ai and CipherWrite)
AI
99 99%
1% 1
Journaling
0 0%
100% 100
Productivity
100 100%
0% 0
Brainstorming And Ideation

Questions & Answers

As answered by people managing Perplexity.ai and CipherWrite.

Why should a person choose your product over its competitors?

CipherWrite's answer:

Why writers choose CipherWrite

  • Your writing stays truly private. Everything is encrypted on your own device with AES-256 and Argon2id before it ever leaves. The keys live with you, not on our servers, so even we cannot read a word of it.

  • AI that helps without eating your book. Tools like Sudowrite and Grammarly only work by shipping your whole manuscript to the cloud. CipherWrite's AI only ever sees the snippet you hand it, so you get brainstorming, humanizing, and editing help while your full draft never leaves your control.

  • Writing Guides that teach the craft. Deep, research-backed guides on story structure, the psychology of unforgettable characters, world-building, narrative pacing, and subtext. Most apps hand you a blank page and walk away. We hand you a blank page and a writing education to go with it.

  • A Critical Thinking Gym for your brain. You write your own argument first, the AI challenges you with Socratic questions, then scores your reasoning and shows your blind spots. It sharpens your thinking instead of doing it for you.

  • Built for authors, not repurposed from a notes app. Real chapter structure, a proper book workflow, and Kindle-ready export, all built in from the start.

  • Works everywhere and free to start. Runs in any browser on any device, with a genuinely free tier. Privacy is not something we make you pay extra for.

In short: CipherWrite is the only writing app that combines real zero-knowledge encryption, AI that never sees your whole book, craft guides that teach you to write better, and a thinking gym that sharpens your mind, all in one free app that runs anywhere.

What makes your product unique?

CipherWrite's answer:

In an age where every keystroke is tracked, scanned, and graded by opaque algorithms, writing in a conventional cloud editor means your private drafts and journals are being mined for data. CipherWrite was built to be different a writing sanctuary where you can finally be alone with your own mind.

Your words are encrypted on your device with AES-256 before they ever touch the cloud, secured by Argon2id. The keys never exist on our servers, so even if CipherWrite were compromised, your data stays unreadable. It's true zero-knowledge privacy: not even our team can see what you write.

Beyond the blank page, CipherWrite helps you grow as a writer. Its Adaptive Creative AI respects your boundaries brainstorm ideas, humanize drafts, and check readability without your work being used for AI training. Deep, research-backed Writing Guides teach the craft itself, from story structure and character psychology to world-building and narrative pacing. And the Critical Thinking Gym turns reasoning into a daily workout: you think first, AI challenges you with Socratic questions, then scores you on the nine Paulโ€“Elder intellectual standards so the AI stays a mirror, never a crutch.

What's the story behind your product?

CipherWrite's answer:

I was going through a difficult time. Every morning I would wake up feeling overwhelmed, carrying around thoughts and emotions that I didn't know how to process. Most of my friends were busy, and honestly, I didn't really have anyone I felt comfortable talking to about some personal things.

One day, I picked up an old diary and started writing everything down. It helped, but I constantly worried that someone might read it because many of my thoughts were deeply personal.

As a developer, I thought, "Why not build a secure digital space for myself?"

That idea eventually became CipherWrite.

My first goal was simple: privacy. I wanted a place where I could write freely without worrying about someone reading my thoughts. So I designed the platform around that idea and built a writing space where privacy came first.

As I continued writing every day, I noticed something surprisingโ€”I felt lighter. Writing had genuinely helped me process my thoughts and emotions. What started as a tool for myself slowly became something much bigger.

I've always wanted to build a SaaS product, and I've also dreamed of writing books one day. As I spent more time using the app, I realized it could become a safe space not only for private journaling but also for writers and authors who needed a distraction-free place to think, create, and write without fear of losing ownership of their work.

The first version was incredibly simple. It wasn't polished, and it had only the features I personally needed. But because I used it every single day, I kept discovering small things that could make the experience better. Every improvement came from solving a problem I had while writing.

Over time, CipherWrite evolved into much more than a private journal. I added tools for brainstorming, organizing ideas, critical thinking, creativity, and long-form writing. Some features were inspired by my own workflow, while others came from listening to people who enjoyed using the platform.

Building it has been one of the most rewarding experiences of my life. It started from a difficult chapter when I simply needed a place to empty my mind. Today, it has become the writing space I wish had existed when I first needed itโ€”a place where people can think freely, write honestly, and create without worrying about privacy.

I still use CipherWrite every day. It's still the first place I go whenever I need to organize my thoughts, write down ideas, or simply clear my mind. In many ways, I'm still building the product for the same person who first opened that old diaryโ€”the only difference is that now I'm hoping it can help others the same way it helped me.

How would you describe the primary audience of your product?

CipherWrite's answer:

CipherWrite is for privacy-conscious writers. Mainly authors and novelists drafting unpublished books, plus private journalers and journalists, who want AI writing tools without ever letting anyone, including the app itself, read their work.

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Perplexity.ai and CipherWrite

Perplexity.ai Reviews

  1. MeganMills
    Just upsides to this app

    this tool is powerful for article writing with sources already mentioned. just give him a topic/company name it will research for you everything about it. Really reliable tool.

    ๐Ÿ‘ Pros:    Speed|Quick response time
    ๐Ÿ‘Ž Cons:    Pro version
  2. Support
    ยท Working at ZorexEye ยท
    Cool and Awesome

    I just love it


15 Powerful CopyAI Alternatives For AI Writing in 2024
Perplexity AI offers a unique approach to AI content generation. It has multiple modes, allowing it to adapt to various writing needs. Whether you need to draft emails, create conversational agents, or write an essay, it has a mode for it.
Source: blaze.today
Best 5 AI Chatbots of 2024
Diverging from conventional chatbot paradigms, Perplexity AI operates more akin to a search engine, yet retains its potency as a formidable AI chatbot. Unlike ChatGPT or Bard, Perplexity AI offers users a choice among a diverse array of large language models, including Google's Gemini, OpenAI's GPT-4, and Anthropic's Claude 2.1 models. This multifaceted approach enables...
Top 31 ChatGPT alternatives that will blow your mind in 2023 (Free & Paid)
Perplexity AI is also powered by large language models (OpenAI API). You can see it collecting information from various popular platforms like Wikipedia, LinkedIn, and Amazon. However, it's still in the beta phase, so it sometimes can pick up the information as it is, leading to plagiarized content.
Source: writesonic.com

CipherWrite Reviews

We have no reviews of CipherWrite yet.
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Social recommendations and mentions

Based on our record, Perplexity.ai seems to be more popular. It has been mentiond 65 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Perplexity.ai mentions (65)

  • GPT-fabricated scientific papers on Google Scholar
    > tried using ChatGPT to search for original sources That's a bad idea, do not do that. Regardless of the the knowledge contained in ChatGPT, it's completely wrong tool/tech - like using a jackhammer as a screwdriver. If your want original sources, then services like https://perplexity.ai can do it. - Source: Hacker News / almost 2 years ago
  • Preview Release of the New Kagi Assistant
    Perplexity[0] is a service whose primary feature is this "assistant" style search, which is an auxiliary featyre for Kagi. [0] https://perplexity.ai. - Source: Hacker News / almost 2 years ago
  • Google Now Defaults to Not Indexing Your Content
    You can get the sweet spot with https://perplexity.ai/ for many cases. It does the searches, aggregated answer, and the actual supporting links. It got back with "The URL for Alpine Linux's style guide for commit messages can be found in the README.md file of the aports repository on GitLab. The specific URL is: https://gitlab.alpinelinux.org/alpine/aports/-/blob/master/README.md" (+ extra links that include the... - Source: Hacker News / about 2 years ago
  • Leveraging Perplexity AI for frontend development
    Your first step is creating your Perplexity AI account. Head over to Perplexity AI's website and click the Sign Up button: You'll be presented with a few convenient options to create your account: If you have a Google or Apple account, you can seamlessly connect it to Perplexity AI for a quick and secure signup. If youโ€™d rather keep things separate, choose Continue with Email and follow the on-screen prompts to... - Source: dev.to / about 2 years ago
  • How to Get Started with AI for Business
    Perplexity AI - Quickly search for and gather information. - Source: dev.to / over 2 years ago
View more

CipherWrite mentions (0)

We have not tracked any mentions of CipherWrite yet. Tracking of CipherWrite recommendations started around Mar 2026.

What are some alternatives?

When comparing Perplexity.ai and CipherWrite, you can also consider the following products

ChatGPT - ChatGPT is a powerful, open-source language model.

Standard Notes - A safe place for your notes, thoughts, and life's work

Claude AI - Claude is a next generation AI assistant built for work and trained to be safe, accurate, and secure. An AI assistant from Anthropic.

Notion - All-in-one workspace. One tool for your whole team. Write, plan, and get organized.

Gemini - Gemini, formerly known as Bard, is a generative artificial intelligence chatbot developed by Google. Based on the large language model (LLM) of the same name, it was launched in 2023 in response to the rise of OpenAI's ChatGPT.

Obsidian.net - Obsidian is an Action-Adventure, First-person Exploration, Puzzle and Single-player video game created and published by Rocket Science.