Flashcard Lab vs Kotora
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Flashcard Lab
Transform your Google Sheets into interactive flashcards for effective studying. Customize your learning experience with randomized testing, spaced repetition, and progress tracking. Ideal for exams, languages, and any subject you need to master.
- Study with randomized virtual flashcards
- Spaced repetition study mode
- Reverse flashcard study mode
- Track progress with test results
- Create custom study lists
- Add synonyms and mnemonics
- Add images to flashcards (with add-on)
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The Flashcard Lab app turns your Google Sheets™ into flashcards to help you study anything from graduate entrance exams to new languages using randomized, customizable virtual flashcards. You can use Flashcard Lab to study for anything from the GREs, SATs, MCATs, GMATs, to new languages like Spanish and Korean. **How To Use:** Google Sheets: First, create a new spreadsheet in the Flashcard Lab mobile app. Use your computer or phone and list your "prompts" (front of the card) in the first column, "answers" (or whatever you want on the "back of the card") in the second column. Optionally, You can also populate the 3rd and 4th columns with synonyms and mnemonics respectively. The first row of the sheet is always the headers. This row is omitted. Then, open up the Flashcard Lab mobile app, sign in with your Google™ account, select the spreadsheet you just made, and start reviewing! **Core Features:** - Study with randomized virtual flashcard testing using Google Sheets™ - Spaced repetition study mode (much easier to use than Anki) - Reverse flashcard study mode (Answer/Prompt) - Audio hyperlinked prompts/answers - See your test results to track your progress - English pronunciation - Create and add your own custom lists - Add words to a "Forgotten Words" list for re-testing - Add synonyms and mnemonics to help memorization - Super easy to use interface Additional features with the Flashcard Lab Google Sheets™ add-on: - Add images to flashcards for reviewing - Print out physical flashcards to Google Docs™ - Audio pronunciation with various language support - Play and test audio links for prompts and answers Free Flashcard Lab Google Sheets™ add-on: https://workspace.google.com/marketplace/app/flashcard_lab/934660656831 Free Chrome Extension: https://chrome.google.com/webstore/detail/flashcard-lab/fomgbfkcdcnconmkcppfhakhoagmndkp **Pricing:** Use of the Flashcard Lab add-on is completely free but premium features require a one time payment. Click on the "Upgrade to Pro" button to check the pricing of the add-on and what comes with the premium version! For non-profit organizations and teachers: discount offered for bulk purchases. Email support@flashcardlab.co for more information. For more information, please visit https://flashcardlab.co **Change log:** 4/3/2025: Improve UIUX, bug fixes 3/26/2025: Improve UIUX for larger screens, add audio hyperlink feature for audio testing (prompt & answer), improve analytics 2/24/2025: Fix purchase button position, improve load speed 11/23/2024: Support images on the back of cards 9/9/2024: Improve backend communication 8/29/2024: Sunset Notion integration functionality :( 3/19/2024: Settings update (toggle randomization, text alignment) 3/11/2024: Implement English pronunciation, small UIUX improvements 2/27/2024: Dark mode and Notion page empty row bug fix 2/14/2024: Minor bug fixes 2/7/2024: Improve syncing with Flashcard Lab Google Sheets add-on 1/20/2024: Google permissions updates (less access required) 1/7/2024: Integrate with Notion 12/16/2023: Fix minor bug for reading numbers from sheets. 10/31/2023: Initial publish
Kotora
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Kotora teaches European Portuguese to adults who need real results — not gamified streaks. European Portuguese only. No Brazilian variants mixed in. If you've moved to Portugal and are having difficulty communicating in daily situations — shopping, doctor's appointments, basic conversations — or are preparing for the A2 citizenship exam, Kotora is built for you. Designed for adult learners, every lesson respects your time and your intelligence. WHO IT'S FOR • Americans, Brits, Canadians, and other expats already living in Portugal • Permanent visa and citizenship applicants preparing for the CIPLE A2 exam • Golden Visa holders abroad — UAE, Singapore, South Africa, Russia, the Philippines — who need Portuguese for their move • Anyone serious about reaching real conversational ability in European Portuguese WHAT YOU GET • Thousands of exercises across vocabulary, grammar, listening, and writing • Fast Track to A2 — a focused path matching the CIPLE exam structure • AI-assisted pronunciation reviews that listen and tell you what to fix • Conjugation drills covering present, past, future, subjunctive, and the irregular verbs that trip everyone up • Carefully designed practice sequences built around how adults actually learn WHY KOTORA IS DIFFERENT Cultural content has its place, but it's not what Kotora is for. No food guides, no fado, no scenic detours. Just the Portuguese language itself: structure, vocabulary, pronunciation, and the conjugations you actually need to use. Kotora is built for people who need Portuguese to live, work, or qualify for residency. The exercises are dense, the feedback is direct, the path to A2 is clear. SUBSCRIPTION Kotora offers monthly and yearly subscriptions to unlock the full library. Subscriptions auto-renew unless cancelled at least 24 hours before the period ends. Manage or cancel anytime in Apple ID settings. Privacy Policy: https://learnwithkotora.com/privacy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Support: support@learnwithkotora.com
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Verdict
The clearest difference is iOS requirement: Flashcard Lab at 15.0 against Kotora's 26.0. On price, update cadence, ads 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
Both are free to download. Flashcard Lab sells 2 one-off in-app purchases and Kotora sells 2 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.
Flashcard Lab ships an update every 2 weeks, Kotora every 3 weeks. The most recent releases landed on August 22, 2026 and September 9, 2026 respectively.
| Parameter | Flashcard Lab | Kotora |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (5 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 2 weeks — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 35 MB | 102 MB |
| Age rating | 4+ | 4+ |
| Developer | Tidis Ventures LLC | NORIICHI TSUMAGARI |
In-app purchases
Flashcard Lab
- Flashcard Lab Pro$17.99
- Flashcard Lab Elite$19.99
Kotora
- Premium Monthly$8.991 Month
- Premium Yearly$79.991 Year









