KaChiKa Downloads & RevenueKaChiKa - AI Photo Flashcards · App Store & Google Play
KaChiKa - AI Photo Flashcards by Chengdu Yichen Technology Co., Ltd is on App Store and Google Play. Active Users (MAU & DAU), Downloads, rankings, keywords, revenue, and rating totals.
KaChiKa - AI Photo Flashcards update history & changes
Last change · 12 events since 6 Jan 2025Full timeline ↓🆕AndroidFirst spotted by AppInsider📦iOSUpdated to version 1.1.3📦AndroidVersion 1.1.3📦iOSUpdated to version 1.0.0🆕iOSFirst spotted by AppInsider🆕iOSIts developer released another app: SiteGlance - Umami 网站数据分析🆕AndroidIts developer released another app: CocoCut｜1s Vlog & Video Diary
Full timeline · 12 events
- 🆕KaChiKa - AI Photo Flashcards first spotted by AppInsiderAndroidUnited States (found via similar)
- ✏️KaChiKa - AI Photo Flashcards: app got biggeriOS62 MB → 73 MB (+19%)
- 📦KaChiKa - AI Photo Flashcards updated to version 1.1.3iOSStudy guide: your first flashcard session now explains the steps: see the word, flip the card, then pick Know it or Forgot.
Clearer hints: tapping Know it or Forgot before flipping gives the card a little shake and points you to the answer first.
Less pressure: the cards-left count only shows for the last 10, and the title no longer jumps when Undo appears.… more - 📦KaChiKa - AI Photo Flashcards version 1.1.3AndroidBy scene: history sorts photos into 8 books like Food, Transport and Street. Tap a photo to change its scene; each book keeps its words in a word box.
New paywall: one Tokyo Tower night shot shows what members get, from photo to sentences, dialogue and review reminders.
Clearer errors: a failed scan says why, long waits can be canceled, and missing permissions take you to Settings.
Easier review: Forgot brings a word back sooner, and you can undo a rating within 3 seconds.… more - 📦KaChiKa - AI Photo Flashcards updated to version 1.0.0iOSWord widgets: review words from your word book on the home screen, and on the iPhone lock screen. See Settings to add one.
Exact examples: example sentences now use a word in the meaning shown on its card.
Smarter chats: conversations use each word in the meaning from your photo.
Dark mode: follows your system setting, or pick one in Settings.
More stable: fixed rare crashes when leaving a page while it was still loading.… more - 🆕KaChiKa - AI Photo Flashcards first spotted by AppInsideriOSChina (found via developer)
- 📦KaChiKa - AI Photo Flashcards version 0.9.10iOSHistory swipe: swipe left or right on a result to switch photos; long-press the grid to delete.
Sticker cards: tap a sticker on your photo to open its explanation right there.
Study cards: now show part of speech, common collocations and related words.
Word meanings: words with several meanings show the one in your photo, with its own example.
Faster chat: the first conversation is prepared while you are still looking.… more - 🆕KaChiKa - AI Photo Flashcards: its developer released another app: SiteGlance - Umami 网站数据分析iOS
- 🆕KaChiKa - AI Photo Flashcards: its developer released another app: CocoCut｜每天一秒影片日記 生活vlogiOS
- 🆕KaChiKa - AI Photo Flashcards: its developer released another app: CocoCut｜1s Vlog & Video DiaryAndroid
- 🆕KaChiKa - AI Photo Flashcards released on the App StoreiOS
- 🆕KaChiKa - AI Photo Flashcards released on Google PlayAndroid
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
4.7 ★
39 ratings, both stores
Measured
App Store
App details
App ID
6740193802
Publisher
Chengdu Yichen Technology Co., Ltd
Publisher country
610097
On the store since
Jan 2025
1 year on the store
Minimum OS
iOS 15.6+
iPhone 6s and later
Devices
iPhone · iPad
Content rating
4+
Languages
8
EN FR JA KO ZH TH ZH VI
Size
73 MB
Also listed in
Utilities
Google Play
App details
App ID
com.hugo.photoen
Publisher
谢晨成
Publisher country
610097
Content rating
Everyone
KaChiKa - AI Photo Flashcards downloads & installs
Both stores, worldwide. Bands are open; exact numbers are free with an account.
| Store | Downloads / day | Lifetime installs |
|---|---|---|
| App Store | – | – |
| Google Play | – | 1k+ Measured |
| Total | – | 1k+ Confidence |
How this is calculated
App Store: chart positions and rating growth per country, anchored on its own Android downloads; lifetime from ratings worldwide × installs per rating. Google Play: the daily change in its exact install count. The total adds every store.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Business model: Ad-led
How KaChiKa - AI Photo Flashcards makes money: subscriptions, one-off purchases and ads.
In-app purchasesAds · 1 ad networks
One-off purchases
/mo
of revenue
Ads
/mo
of revenue
Where it ranks now
Both stores, across every country we track.
| Store | Best rank | Charting in | US Top Free | US Top Grossing |
|---|---|---|---|---|
| App Store | – | 0 of 30 countries | – | – |
| Google Play | – | 0 of 23 countries | – | – |
Full chart lists: App Store · Google Play.
Ratings
Both stores. Store data, measured.
| Store | Rating | Ratings |
|---|---|---|
| App Store | 4.6 ★ | 24 |
| Google Play | 4.9 ★ | 15 3 written reviews |
| Both stores | 4.7 ★ weighted by ratings | 39 |
About KaChiKa - AI Photo Flashcards
Turn any photo into a language lesson.
KaChiKa uses AI to instantly identify objects in your photos and generate vocabulary cards with pronunciation. Perfect for visual learners who want to learn languages through everyday life.
SNAP & LEARN
Point your camera at anything. Our AI recognizes objects and creates interactive word tags you can tap to hear pronunciation. Learn words in context, exactly where you encounter them.
SMART FLASHCARDS
Master vocabulary with our spaced repetition system powered by forgetting curve algorithms. Cards appear exactly when you need to review them - no more forgetting what you've learned.
- Automatic scheduling based on your memory patterns
- Visual progress tracking
- Focus on what needs review, skip what you know
SHARE & ORGANIZE
Save your photo cards to albums. Share on social media. Browse vocabulary by real-life scenes and situations.
PRIVACY FIRST
Making a card sends the photo for AI analysis; your cards and study history then live on the device — no account, no cloud library.
---
Subscription auto-renews within 24 hours of expiration. Cancel anytime in Settings > Subscriptions at least 24 hours before renewal.
Terms: https://kachika.app/terms
Privacy: https://kachika.app/privacy
KaChiKa uses AI to instantly identify objects in your photos and generate vocabulary cards with pronunciation. Perfect for visual learners who want to learn languages through everyday life.
SNAP & LEARN
Point your camera at anything. Our AI recognizes objects and creates interactive word tags you can tap to hear pronunciation. Learn words in context, exactly where you encounter them.
SMART FLASHCARDS
Master vocabulary with our spaced repetition system powered by forgetting curve algorithms. Cards appear exactly when you need to review them - no more forgetting what you've learned.
- Automatic scheduling based on your memory patterns
- Visual progress tracking
- Focus on what needs review, skip what you know
SHARE & ORGANIZE
Save your photo cards to albums. Share on social media. Browse vocabulary by real-life scenes and situations.
PRIVACY FIRST
Making a card sends the photo for AI analysis; your cards and study history then live on the device — no account, no cloud library.
---
Subscription auto-renews within 24 hours of expiration. Cancel anytime in Settings > Subscriptions at least 24 hours before renewal.
Terms: https://kachika.app/terms
Privacy: https://kachika.app/privacy
KaChiKa - AI Photo Flashcards App Store
Not in any tracked top chart right now.
Updated 2 Nov 2026 · rankings refresh through the day
DeveloperChengdu Yichen Technology Co., Ltd
CategoryEducation
PriceFree
Released
Rating★ 4.6 (24)
Version1.1.3
Age rating4+
First seen by us
12 Oct 2026
12 Oct 2026Rating
4.6 ★
24 ratings
Measured
KaChiKa - AI Photo Flashcards on the App Store
App details
App ID
6740193802
Publisher
Chengdu Yichen Technology Co., Ltd
Publisher country
610097
On the store since
Jan 2025
1 year on the store
Minimum OS
iOS 15.6+
iPhone 6s and later
Devices
iPhone · iPad
Content rating
4+
Languages
8
EN FR JA KO ZH TH ZH VI
Size
73 MB
Also listed in
Utilities
KaChiKa - AI Photo Flashcards downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Business model: Ad-led
How KaChiKa - AI Photo Flashcards makes money: subscriptions, one-off purchases and ads.
In-app purchasesAds · 1 ad networks
One-off purchases
/mo
of revenue
Ads
/mo
of revenue
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
4.6 ★
24 ratings
Measured
Ratings
24
Measured
About KaChiKa - AI Photo Flashcards
Turn any photo into a language lesson.
KaChiKa uses AI to instantly identify objects in your photos and generate vocabulary cards with pronunciation. Perfect for visual learners who want to learn languages through everyday life.
SNAP & LEARN
Point your camera at anything. Our AI recognizes objects and creates interactive word tags you can tap to hear pronunciation. Learn words in context, exactly where you encounter them.
SMART FLASHCARDS
Master vocabulary with our spaced repetition system powered by forgetting curve algorithms. Cards appear exactly when you need to review them - no more forgetting what you've learned.
- Automatic scheduling based on your memory patterns
- Visual progress tracking
- Focus on what needs review, skip what you know
SHARE & ORGANIZE
Save your photo cards to albums. Share on social media. Browse vocabulary by real-life scenes and situations.
PRIVACY FIRST
Making a card sends the photo for AI analysis; your cards and study history then live on the device — no account, no cloud library.
---
Subscription auto-renews within 24 hours of expiration. Cancel anytime in Settings > Subscriptions at least 24 hours before renewal.
Terms: https://kachika.app/terms
Privacy: https://kachika.app/privacy
KaChiKa uses AI to instantly identify objects in your photos and generate vocabulary cards with pronunciation. Perfect for visual learners who want to learn languages through everyday life.
SNAP & LEARN
Point your camera at anything. Our AI recognizes objects and creates interactive word tags you can tap to hear pronunciation. Learn words in context, exactly where you encounter them.
SMART FLASHCARDS
Master vocabulary with our spaced repetition system powered by forgetting curve algorithms. Cards appear exactly when you need to review them - no more forgetting what you've learned.
- Automatic scheduling based on your memory patterns
- Visual progress tracking
- Focus on what needs review, skip what you know
SHARE & ORGANIZE
Save your photo cards to albums. Share on social media. Browse vocabulary by real-life scenes and situations.
PRIVACY FIRST
Making a card sends the photo for AI analysis; your cards and study history then live on the device — no account, no cloud library.
---
Subscription auto-renews within 24 hours of expiration. Cancel anytime in Settings > Subscriptions at least 24 hours before renewal.
Terms: https://kachika.app/terms
Privacy: https://kachika.app/privacy
Latest updates
1.1.3
Study guide: your first flashcard session now explains the steps: see the word, flip the card, then pick Know it or Forgot.
Clearer hints: tapping Know it or Forgot before flipping gives the card a little shake and points you to the answer first.
Less pressure: the cards-left count only shows for the last 10, and the title no longer jumps when Undo appears.
1.0.0
Word widgets: review words from your word book on the home screen, and on the iPhone lock screen. See Settings to add one.
Exact examples: example sentences now use a word in the meaning shown on its card.
Smarter chats: conversations use each word in the meaning from your photo.
Dark mode: follows your system setting, or pick one in Settings.
More stable: fixed rare crashes when leaving a page while it was still loading.
0.9.10
History swipe: swipe left or right on a result to switch photos; long-press the grid to delete.
Sticker cards: tap a sticker on your photo to open its explanation right there.
Study cards: now show part of speech, common collocations and related words.
Word meanings: words with several meanings show the one in your photo, with its own example.
Faster chat: the first conversation is prepared while you are still looking.
Store changes
What KaChiKa - AI Photo Flashcards changed on its store page: name, icon, screenshots, price, size, languages, requirements.
App got bigger
62 MB → 73 MB (+19%)
More from Chengdu Yichen Technology Co., Ltd
KaChiKa - AI Photo Flashcards Android
Not in a tracked Google Play top chart right now.
Updated 2 Nov 2026 · rankings refresh through the day
DeveloperHiroShi
CategoryTools
PriceFree
Released
Installs1k+
Rating★ 4.9 (15)
Updated
Content ratingEveryone
Rating
4.9 ★
15 ratings
Measured
KaChiKa - AI Photo Flashcards on Google Play
App details
App ID
com.hugo.photoen
Publisher
谢晨成
Publisher country
610097
Content rating
Everyone
KaChiKa - AI Photo Flashcards downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Google Play shows an exact lifetime install count; downloads per day are its daily change (measured). When Play hasn't refreshed the count, they come from new ratings and Top Free chart positions. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Business model: Ad-led
How KaChiKa - AI Photo Flashcards makes money: subscriptions, one-off purchases and ads.
In-app purchasesAds · 1 ad networks
One-off purchases
/mo
of revenue
Ads
/mo
of revenue
Where it ranks on Google Play
Every top 200 chart it appears in across 23 countries.
| Country | Charts | Rank |
|---|---|---|
| Not in a Google Play top chart right now. | ||
Ratings
Google Play, worldwide.
Rating
4.9 ★
15 ratings
Measured
Ratings
15
Measured
Written reviews
3
Measured
About KaChiKa - AI Photo Flashcards
Turn any photo into a language lesson with AI-powered vocabulary cards.
KaChiKa uses AI to instantly identify objects in your photos and generate vocabulary flashcards with pronunciation. A visual dictionary in your pocket — the smart way to learn English, Korean, French, Chinese, Spanish and Italian through everyday life.
SNAP & LEARN
Point your camera at anything. Our AI recognizes objects and creates interactive word tags you can tap to hear pronunciation. Learn English words in context, right where you encounter them. Build your image vocabulary naturally from real-life scenes.
SMART FLASHCARDS WITH SPACED REPETITION
Master vocabulary effortlessly with our intelligent spaced repetition system. Powered by the forgetting curve, cards appear exactly when you need to review them — a smarter way to practice and memorize words.
• Automatic scheduling based on your memory patterns
• Visual progress tracking for your learning journey
• Focus on what needs review, skip what you already know
VISUAL VOCABULARY BUILDER
Browse words by real-life scenes and situations. Save your photo cards to albums. Share on social media. An image-based vocabulary builder that makes learning words stick.
PRIVACY FIRST
All photos stay on your device. No uploads. No cloud storage. Your learning journey is yours alone.
---
Subscription auto-renews within 24 hours of expiration. Cancel anytime in Settings > Subscriptions at least 24 hours before renewal.
Terms: https://kachika.app/terms
Privacy: https://kachika.app/privacy
KaChiKa uses AI to instantly identify objects in your photos and generate vocabulary flashcards with pronunciation. A visual dictionary in your pocket — the smart way to learn English, Korean, French, Chinese, Spanish and Italian through everyday life.
SNAP & LEARN
Point your camera at anything. Our AI recognizes objects and creates interactive word tags you can tap to hear pronunciation. Learn English words in context, right where you encounter them. Build your image vocabulary naturally from real-life scenes.
SMART FLASHCARDS WITH SPACED REPETITION
Master vocabulary effortlessly with our intelligent spaced repetition system. Powered by the forgetting curve, cards appear exactly when you need to review them — a smarter way to practice and memorize words.
• Automatic scheduling based on your memory patterns
• Visual progress tracking for your learning journey
• Focus on what needs review, skip what you already know
VISUAL VOCABULARY BUILDER
Browse words by real-life scenes and situations. Save your photo cards to albums. Share on social media. An image-based vocabulary builder that makes learning words stick.
PRIVACY FIRST
All photos stay on your device. No uploads. No cloud storage. Your learning journey is yours alone.
---
Subscription auto-renews within 24 hours of expiration. Cancel anytime in Settings > Subscriptions at least 24 hours before renewal.
Terms: https://kachika.app/terms
Privacy: https://kachika.app/privacy
What's new in 1.1.3
By scene: history sorts photos into 8 books like Food, Transport and Street. Tap a photo to change its scene; each book keeps its words in a word box.
New paywall: one Tokyo Tower night shot shows what members get, from photo to sentences, dialogue and review reminders.
Clearer errors: a failed scan says why, long waits can be canceled, and missing permissions take you to Settings.
Easier review: Forgot brings a word back sooner, and you can undo a rating within 3 seconds.
New paywall: one Tokyo Tower night shot shows what members get, from photo to sentences, dialogue and review reminders.
Clearer errors: a failed scan says why, long waits can be canceled, and missing permissions take you to Settings.
Easier review: Forgot brings a word back sooner, and you can undo a rating within 3 seconds.