Comparison

Subtext vs Ducky

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Subtext

Enhance your written communication with an AI assistant that helps you compose, refine, and analyze messages. It smooths interactions, removes emotional triggers, and ensures your words are clear, calm, and authentic, fostering better relationships and mental well-being.

Highlights
  • AI message composition and enhancement
  • Grammar, spelling, and sentence correction
  • Tone analysis and word tuning
  • Response and reply generation
  • Message analysis for triggers and aggression
  • AI humanizer for natural messaging
Read full description

Subtext AI is your writing and communication assistant for everyday messages, replies, and difficult conversations. Use it for texts, emails, dating conversations, work replies, group chats, follow-ups, check-ins, and those moments when you know what you want to say but not exactly how to say it. WHO IT'S FOR - People who rewrite the same message five times before sending - Overthinkers, over-editors, and anyone wondering "does this sound okay?" - People navigating sensitive conversations, follow-ups, boundaries, or unexpected replies - Anyone who wants their writing to better match their intention WHAT SUBTEXT DOES - Message Analyzer: Review tone, clarity, and how your message may come across. Spot wording that could feel unclear, too harsh, too passive, or easy to misread. - Writing Coach and Proofreader: Understand why certain phrases need work and how to improve them. Fix grammar, spelling, and sentence structure automatically. - Smart Reply and Response Generator: Generate or improve replies based on conversation context. Paste a screenshot or type the conversation, and get response options that fit. - Tone Tuner: Make your message warmer, clearer, shorter, softer, firmer, or more professional. - Rewriter and Rephraser: Turn rough drafts, scattered notes, and half-finished thoughts into polished messages. - Context Summary: Paste a full conversation and get a breakdown of the key points, possible tone and intent, and reply options. USE IT FOR - Turning drafts and notes into clear messages - Proofreading before you hit send - Quick replies when you're not sure what to say - Navigating sensitive or emotionally loaded conversations - Setting boundaries without overexplaining - Following up on unanswered messages - Work emails and professional communication - Group chats, dating, friendships, and family messages - Exploring how a message might be interpreted before sending WHY PEOPLE USE IT - Write with less second-guessing - Say what you mean without overexplaining or underexplaining - Avoid wording that may come across the wrong way - Get practical, real-time feedback that helps you improve over time - Keep your own voice while making sure your message is clear Subtext uses AI to analyze tone, suggest improvements, and help you communicate with more confidence, one message at a time. Subtext is a writing and communication assistant. It does not provide therapy, diagnosis, or medical advice. AI suggestions may not always be accurate or appropriate. Review messages before sending.

About

Ducky

Features
Read full description

Ducky is a private, on-device thinking partner. Bring it a problem, a decision, or a half-formed idea, and instead of handing you an answer, it asks the questions that help you reach your own conclusions. IT'S RUBBER-DUCK THINKING Programmers have long debugged problems by explaining them out loud to a rubber duck. The Feynman technique and the Socratic method run on the same idea: you think best when you have to put things into words and answer good questions. Ducky is that rubber duck, except it asks questions to keep you going. HOW IT WORKS • Say what you're working through, in your own words. • Ducky asks focused, open questions, one at a time. • Stuck? Tap the lightbulb for one gentle suggestion, then it goes back to asking. • Find any past conversation, saved and searchable. • Export a clean summary to Notes, Mail, or wherever you like. PRIVATE BY DESIGN Everything runs on your iPhone with Apple Intelligence. No accounts, no cloud, no analytics, no tracking. Ducky doesn't connect to the internet, so it even works in airplane mode. Your conversations stay on your device, and the only thing that ever leaves is a summary you choose to export. Data collection: none, in every App Store category. ONE PURCHASE, NO SUBSCRIPTION Try Ducky free for 3 days. If it fits how you think, a single one-time purchase unlocks it for good. No subscription, no recurring charge. HONEST ABOUT AI Ducky is an AI, and a bit of a bird-brain. Treat anything it suggests as food for thought, never advice. Your judgment is what matters, and Ducky will never stand in for professional guidance. REQUIREMENTS Ducky needs an iPhone with Apple Intelligence: iPhone 15 Pro, iPhone 15 Pro Max, or iPhone 16 or later.

Screenshots

Subtext4 screens
Ducky4 screens

Verdict

The call

The clearest difference is ads: Ducky at none against Subtext's shown. Subtext's advantage is update cadence (every 2 weeks vs every 5 weeks) and device support (3 vs 1). On price and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Subtext sells 10 in-app purchases, starting at $2.99 per 7 days and Ducky sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Subtext ships an update every 2 weeks, Ducky every 5 weeks. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
Subtext versus Ducky: the parameters behind the verdict, then further details
ParameterSubtextDucky
PriceFreeFree
Rating4.9 (21 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings21 — better—
Update frequencyEvery 2 weeks — betterEvery 5 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better26.0
Further details — not scored
Size86 MB38 MB
Age rating4+4+
DeveloperANTON LICHTBill Goulding

Bugs and requests

Subtext

Requested features

1 request
  • Free trial example

Ducky

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Subtext

Subscriptions10
  • Weekly Subscription7 Days trial$2.997 Days
  • Weekly Subscription$4.997 Days
  • Weekly Subscription$5.997 Days
Show 7 more
  • Weekly Subscription3 Days trial$6.997 Days
  • Monthly Subscription$9.991 Month
  • Yearly Subscription$39.991 Year
  • Yearly Subscription7 Days trial$49.991 Year
  • Yearly Subscription$49.991 Year
  • Yearly Subscription3 Days trial$69.991 Year
  • Yearly Subscription7 Days trial$89.991 Year
1 purchases

Ducky

One-time1
  • Lifetime Unlock$4.99

Questions

Is Subtext free?
Subtext is free to download, with in-app purchases available.
Is Ducky free?
Ducky is free to download, with in-app purchases available.
Do Subtext or Ducky have ads?
Subtext shows ads; Ducky does not.
Which is updated more often, Subtext or Ducky?
Subtext ships an update every 2 weeks, and Ducky every 5 weeks. Most recently, Subtext was updated on November 8, 2026 and Ducky on October 31, 2026.

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