StackCards vs ScanLingo
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
StackCards
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StackCards is a beautiful, focused flashcards app for studying anything languages, math, science, code, history, or any subject you want to master. Create a card, add the answer, and review it until it sticks. No clutter, no accounts, no subscriptions. MADE FOR ANY SUBJECT ⢠Basic cards - a question or term and its answer ⢠Vocabulary cards - a word or phrase and its translation ⢠Formula cards - a name and its formula, with a math symbols keyboard ⢠Code cards - concepts with syntax-highlighted snippets in 17+ languages SMART STUDY ⢠A smart review mode that brings back the cards you miss and haven't seen in a while ⢠Study modes: smart mix, hardest first, least reviewed, and shuffle ⢠Beat-the-clock timed mode ⢠Swipe to rate, tap to reveal, flip for examples and notes STAY ORGANIZED ⢠Group cards into collections and subfolders ⢠Color tags and instant search ⢠Drag & drop to move and reorder ⢠Export and import collections to share or back them up BUILD A HABIT ⢠A daily streak that keeps you coming back ⢠Optional evening reminder if you haven't studied ⢠Unlock an exclusive theme and card style at a 100-day streak MAKE IT YOURS ⢠Light, dark, and system appearance ⢠Accent colors, animated backgrounds, and animated card styles ⢠Track your progress with mastered / learning / new stats PRIVATE BY DESIGN Everything stays on your device. StackCards doesn't track you and doesn't collect your data. STACKCARDS PREMIUM Unlock everything with a single payment - yours forever, no subscription: ⢠Unlimited collections and nested folders ⢠Every theme, accent color, and card style ⢠Add images to your cards ⢠Unlimited imports of any size The free plan includes up to 3 collections, unlimited cards, and one level of subfolders - plenty to get started.
ScanLingo
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ScanLingo turns the words you meet while reading into cards you can revisit right where they came from. Start from a page you're reading or an object in front of you ā and build your vocabulary a little at a time. Snap and Learn Take a photo or pick an image, and ScanLingo recognizes the object right on your device, showing up to 3 candidate words ranked by confidence. Pick the one you want, check or edit the translation and definition, then save it to your vocabulary cards. Learn From the Book Scan a page with on-device OCR, confirm the text, then get the translation and read-aloud and save the sentences you care about. Add title, author, cover, page and notes ā every card stays linked to its book and page, so review takes you straight back to the original line. Pronunciation and Follow-Reading Words, phrases and sentences keep their original text, translation, pronunciation hints and source context. Read along, hold to follow-read, and see how you did ā steadily moving between what you've mastered and what's due. Key Features ⢠On-device object recognition, up to 3 candidates per image ⢠On-device OCR for printed text ⢠Editable translations and definitions ⢠Pronunciation, read-aloud and follow-reading feedback ⢠Word, phrase and sentence cards ⢠Shelf, page numbers, notes and book binding ⢠Context review built around your original book ⢠No account needed; learning content stays on your device by default ScanLingo supports learning Chinese (Simplified and Traditional), English, Japanese, Korean, French and Portuguese. Actual translation, read-aloud and recognition may vary by device, iOS version and language. Advanced features are unlocked with a one-time purchase ā no subscription, no auto-renewal. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: ScanLingo at every 11 days against StackCards's monthly. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. StackCards sells 1 one-off in-app purchase and ScanLingo sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
StackCards ships an update monthly, ScanLingo every 11 days. Both last shipped on October 25, 2026.
| Parameter | StackCards | ScanLingo |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Every 11 days ā better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad ā better | iPhone |
| Requires iOS | 18.0 | 18.0 |
| Further details ā not scored | ||
| Size | 5 MB | 72 MB |
| Age rating | 4+ | 4+ |
| Developer | Luis Leonardo Salas Delgadillo | č“ę° ę |
In-app purchases
StackCards
- StackCards Premium$4.99
ScanLingo
- ScanLingo1 Month trial$0.991 Month
- Plus Lifetime Access$9.99









