Comparison

Words Lens vs ReplyAI

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

Head to head
About

Words Lens

Instantly get definitions for words you encounter in books, signs, or brochures by simply snapping a photo. This utility app helps you quickly understand complex vocabulary without manual searching. It intelligently skips common words in English to speed up the lookup process.

Highlights
  • Instant word definitions via camera
  • Scan books, signs, and brochures
  • Automatic skipping of common words
  • Supports multiple device languages
  • Quick vocabulary lookup
Features
Read full description

WordsLens turns photos of everyday text into clear, useful, and searchable information. Scan a document, nutrition label, medication package, receipt, card, sign, brochure, or book page. WordsLens recognizes the text, organizes it, and—when supported—presents the most important details in an easy-to-read summary. Understand everyday labels Nutrition Facts panels become structured summaries showing serving size, nutrients, amounts, and Daily Values. WordsLens can also call attention to allergen and MSG-related ingredient mentions, product origin, and expiration dates. For supported medication labels, WordsLens can recognize medication names and NDC codes and optionally retrieve information from U.S. government sources, including medication type and official-label uses. Organize what you scan Save recognized text and original images together, then search your entire library whenever you need them. Documents can be organized into Nutrition, Medicine, Cards, Receipts, and custom collections. You can also: • Scan multipage documents • Import images and text through the Share Sheet • Correct image perspective before recognition • Merge related pages into one document • Edit, copy, and share recognized text • Mark important documents as favorites • Recover recently deleted items from Trash • Listen to nutrition and medication summaries Protect sensitive information WordsLens can recognize and organize details from payment, identification, and membership cards. Sensitive card information can be concealed and protected with Face ID or Touch ID. Please note: Text recognition and automatic summaries may contain errors. Nutrition impact estimates are based only on recognized label information and are not personalized health assessments. Medication and nutrition features are provided for general informational purposes and are not medical advice.

About

ReplyAI

Features
Read full description

Write smarter emails in seconds—without stress! Tired of spending minutes crafting the perfect reply? AI Email Reply helps you write professional, polite, and natural emails instantly—in multiple languages. Just paste the email, choose your tone and language, and let AI do the work. Why you'll love it: Multi-Language Support: Write, reply, and polish emails in multiple languages with native-level fluency—perfect for global communication. Reply, Rewrite, or Summarize: Handle emails your way. Intent Buttons: One-tap for common business actions—Accept, Decline, Follow up, Apologize, and more. Tone & Length Control: Professional, Polite, Friendly, or Firm—Short, Medium, or Detailed. Polish & Improve: Make your drafts more natural, clear, and professional without changing meaning. Quick Templates: Ready-to-use replies for meetings, thank-yous, apologies, and requests. Continuous Editing: Regenerate, shorten, make more polite, or more direct—perfect for fine-tuning every reply. Perfect for work, business, and daily communication—across languages and cultures. Save time, impress your colleagues worldwide, and write emails with confidence—every single time.

Screenshots

Words Lens4 screens
ReplyAI4 screens

Verdict

The call

The clearest difference is in-app purchases: Words Lens at none against ReplyAI's 2. ReplyAI's advantage is ads (none vs shown) and iOS requirement (15.1 vs 26.0). On price and device support 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. ReplyAI sells 2 in-app purchases, starting at $5.99 per month. Words Lens asks for nothing beyond the download.

Scorecard3 real differences · 7 level
Words Lens versus ReplyAI: the parameters behind the verdict, then further details
ParameterWords LensReplyAI
PriceFreeFree
Rating4.4 (24 ratings) — better—
Positive reviews81.8% of reviews—
Number of ratings24 — better—
Update frequencyEvery 5 weeks—
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.015.1 — better
Further details — not scored
Size9 MB17 MB
Age rating12+4+
DeveloperYOYASOFT LLC金洪 廖

In-app purchases

None

Words Lens

No in-app purchases

2 purchases

ReplyAI

Subscriptions2
  • Monthly Access$5.991 Month
  • Annual Plan (Save 50%)$35.991 Year

Questions

Is Words Lens free?
Words Lens is free to download, with no in-app purchases.
Is ReplyAI free?
ReplyAI is free to download, with in-app purchases available.
Do Words Lens or ReplyAI have ads?
Words Lens shows ads; ReplyAI does not.

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