Comparison

CaptionSmith vs PostKit AI

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

Head to head
About

CaptionSmith

This app uses AI to generate professional captions, titles, and keywords for your photos. It offers various templates and features like GPS awareness and stock photography optimization. Metadata embedding and iCloud sync are also included.

Highlights
  • AI-powered caption generation
  • 12 built-in caption templates
  • Auto-generate smart keywords
  • GPS-aware location captions
  • Stock photography presets
  • EXIF/IPTC metadata embedding
  • iCloud sync across devices
Features
Read full description

CaptionSmith turns the tedious work of captioning and keywording into a few taps. Point it at your photos, pick a style, and let AI write professional titles, descriptions, and keywords — then embed them straight into your image metadata, ready for stock agencies or your own searchable library. Built for stock photographers, and just as handy for everyday photos. WHAT IT DOES • AI captions & keywords — Claude, OpenAI (GPT), and Google Gemini analyze each photo and write accurate, natural descriptions plus 20–45 relevant keywords. • Stock Photography Mode — agency presets for Shutterstock, Adobe Stock, and Getty/iStock with the right keyword counts, title lengths, and editorial formatting. • Compare providers (new) — run one photo through Claude, GPT, and Gemini side by side and keep the caption and keywords you like best. • 13 caption templates — Descriptive, Concise, Stock Commercial, Stock Editorial, Product, Real Estate, Food, Travel, Portrait, Event, Artistic, Social, and a new Family & Everyday style. • People tagging — tag friends and family so their names appear in captions; on-device face detection helps you tag faster (no facial recognition, nothing stored). • Batch processing — caption 100+ photos at once with live progress. Minutes instead of hours. • Metadata embedding — writes to EXIF, IPTC, and XMP so captions are searchable everywhere and upload-ready; XMP sidecars for RAW/DNG. • Compliance tools — agency compliance checks, one-tap auto-fix, and AI-content disclosure for editorial. • GPS-aware captions — optional location context pulled from your photos. • Export to Photos, share anywhere, or import photos straight from other apps. TWO WAYS TO USE IT • Subscription — no API key required, with a free trial so you can try before you subscribe. • Bring your own key — power users can plug in their own Anthropic, OpenAI, or Google key. SUPPORTED PHOTOS JPEG, HEIC, PNG, and RAW/DNG (via XMP sidecar). PERFECT FOR • Stock contributors uploading to Shutterstock, Adobe Stock, Getty, and iStock. • Photographers who need consistent, agency-ready metadata in bulk. • Anyone building a searchable, well-captioned photo library. PRIVACY • Photos are sent only to the AI provider that captions them. • On-device face detection is used only to help you tag — there is no facial recognition, and no face data is ever stored or shared. • API keys are stored securely in the iOS Keychain. Requires iOS 17 or later. Subscriptions auto-renew unless cancelled; manage them anytime in your Apple account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

PostKit AI

This app helps creators generate platform-ready content using AI. It offers tools for creating captions, hooks, hashtags, carousels, and editing short videos with a timeline. Content can be exported for various social platforms.

Highlights
  • AI caption and hook generation
  • Trend-inspired content prompts
  • Carousel design with canvas editor
  • Timeline video editing
  • Export for social platforms
  • Multi-language support
Features
Read full description

PostKit AI is an all-in-one content studio for creators and teams. Create platform-ready content with AI. Generate captions, hooks, and hashtag ideas, explore trend-inspired prompts, design carousels with a built-in canvas editor, and edit short videos with a timeline. Add text, stickers, and styles, then export your content ready to share. Key Features - AI writing: ideas, captions, hooks, hashtag suggestions - Trend-inspired prompts to spark new content - Carousel (canvas) editor: templates, fonts, backgrounds, stickers - Photo and video tools: trim, resize, timeline editing, subtitles (if available) - Export formats for popular social platforms - Multi-language support Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy URL: https://postkitapp.com/privacy/ Terms of Use URL: https://postkitapp.com/terms/

Screenshots

CaptionSmith4 screens
PostKit AI4 screens

Verdict

The call

The clearest difference is device support: CaptionSmith at 3 against PostKit AI's 1. On price, rating, ratings volume and update cadence 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. CaptionSmith sells 9 in-app purchases, starting at $2.99 per month and PostKit AI sells 7 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for CaptionSmith against 5.0 for PostKit AI. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

CaptionSmith ships an update every 5 days, PostKit AI every 6 days. The most recent releases landed on September 22, 2026 and September 1, 2026 respectively.

Scorecard1 real difference · 9 level
CaptionSmith versus PostKit AI: the parameters behind the verdict, then further details
ParameterCaptionSmithPostKit AI
PriceFreeFree
Rating5.0 (2 ratings)5.0 (1 ratings)
Positive reviews—100.0% of reviews
Number of ratings2 — better1
Update frequencyEvery 5 days — betterEvery 6 days
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, Mac — betteriPhone
Requires iOS17.017.0
Further details — not scored
Size22 MB21 MB
Age rating4+4+
DeveloperArhaanth ReddyLovesoft Yazilim

Customer experience

CaptionSmith

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

PostKit AI

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

9 purchases

CaptionSmith

Subscriptions6
  • 50 Captions1 Month trial$2.991 Month
  • 200 Captions1 Month trial$6.991 Month
  • Unlimited Plan1 Month trial$19.991 Month
Show 3 more
  • 200 Captions1 Year trial$69.991 Year
  • BYOK Annual1 Year trial$99.991 Year
  • Unlimited Captions1 Year trial$199.991 Year
One-time3
  • Unlimited Captions$74.99
  • Lifetime - Mac$74.99
  • Lifetime - All Devices$99.99
7 purchases

PostKit AI

Subscriptions3
  • PostKit Weekly$6.997 Days
  • PostKit Monthly$19.991 Month
  • PostKit Yearly$149.991 Year
One-time4
  • 25 Credits Pack$19.99
  • 100 Credits$29.99
  • 250 Credits$39.99
Show 1 more
  • 600 Credits Pack$79.99

Questions

Is CaptionSmith free?
CaptionSmith is free to download, with in-app purchases available.
Is PostKit AI free?
PostKit AI is free to download, with in-app purchases available.
Which has better reviews, CaptionSmith or PostKit AI?
CaptionSmith and PostKit AI are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do CaptionSmith or PostKit AI have ads?
Neither CaptionSmith nor PostKit AI shows ads.
Which is updated more often, CaptionSmith or PostKit AI?
CaptionSmith ships an update every 5 days, and PostKit AI every 6 days. Most recently, CaptionSmith was updated on September 22, 2026 and PostKit AI on September 1, 2026.

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