Lemmelingo vs LockFeed
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lemmelingo
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Lemmelingo gives you a structured weekly language routine to build fluency — CEFR-oriented daily lessons, focused exercises, and instant AI corrections, based on your level, goals, and schedule. Instead of planning everything yourself, you get a study plan that fits a busy week, with progress you can track from check-in to check-in. SUPPORTED LANGUAGES - English - Spanish - German - French - Italian WHO IT'S FOR - Independent learners who want structure without a rigid course. - Busy learners and professionals who want to know what to study next. - Learners improving grammar, vocabulary, writing, and speaking with a steady routine. - Anyone learning English, German, Spanish, Italian, or French with CEFR-oriented progress. WHAT YOU GET - Personalized weekly plans Every seven days, Lemmelingo builds a study week around your level, goals, and schedule. - Lessons and exercises that fit your routine Get daily lessons and exercises without having to piece together a plan yourself. - Instant corrections Submit answers and get clear feedback on grammar, spelling, phrasing, and overall fit right away. - Save words and review them with flashcards Tap any word in a lesson to save it, then lock it in with daily spaced-repetition flashcards that bring each word back right before you would forget it. - Visible progress Track heatmaps, streaks, score trends, and weekly summaries so you can see how your routine is building over time. - Study materials that work for you Connect books, videos, podcasts, articles, and other materials so your weekly plan fits how you already like to learn. - Built for steady progress Lemmelingo supports learners across CEFR levels with a routine that adapts week after week. TRY YOUR FIRST STUDY WEEK FREE Start your first study week in the app. No subscription is required to try it, and you can create an account later to sync across devices. SUBSCRIPTION TERMS Lemmelingo offers auto-renewing monthly, 6-month, and annual subscriptions. Payment will be charged to your Apple Account at confirmation of purchase. Your subscription renews automatically unless it is canceled at least 24 hours before the end of the current period. You can cancel or manage your subscription in your Apple Account settings. Terms & Conditions: https://lemmelingo.com/terms Privacy Policy: https://lemmelingo.com/privacy
LockFeed
This app requires users to answer short quizzes before granting access to selected applications. Users can customize unlock times and the number of questions needed per unlock. It offers various learning topics and a one-time purchase for unlimited access.
- Answer quizzes to unlock apps
- Customize unlock duration
- Select number of questions per unlock
- Variety of quiz topics
- Offline quiz content
- One-time purchase for unlimited access
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Earn your screen time with a little learning. LockFeed puts a short challenge before the apps you choose. Enable one or more quizzes, choose how many questions to complete, and use Apple Screen Time to add a pause before you scroll. HOW IT WORKS • Choose the apps you want to lock. • Enable quizzes and choose how many correct answers you need to unlock. • Set a default unlock time, with optional custom times for individual apps. • Complete your challenge to unlock the app you want to use. • When your unlock time ends, the app locks again. MAKE EACH UNLOCK YOUR OWN Start with one question per unlock, or choose up to 10. Each completed quiz round counts as one question. Your progress is saved if you leave before finishing. Use Manage Apps to Lock to add or remove apps and give each app its own unlock time, or let it follow your default. Changing a time does not cut short an unlock you have already earned. FIVE FREE APP UNLOCKS Try five successful quiz-based app unlocks. After those five unlocks, Lifetime Access is required for further unlocks. Each earned unlock lasts for the full duration you chose. LIFETIME ACCESS A one-time in-app purchase enables unlimited quiz-based app unlocks and standalone quiz practice. Standalone practice requires Lifetime Access. There is no subscription, and the price for your region is shown before purchase. Restore Purchases is available for previous buyers. FIND SOMETHING YOU WANT TO LEARN Practice vocabulary, identify famous artworks and country flags, solve chess puzzles, or find notes on a guitar fretboard. Read short Python functions and identify their time complexity, or explore practice questions in math, science, exam preparation, driving theory, and citizenship. Learn about AI with LLM Fundamentals and Practical Deep Learning: 304 questions with explanations and links to supporting lessons. Questions and explanations work offline; opening source lessons requires an internet connection. Your enabled quizzes form a shared pool across your protected apps. The quizzes take turns in a shuffled order, with each getting a turn before repeating. When you require multiple answers, each question advances to the next quiz in the rotation. Manage your enabled quizzes or adjust your unlock settings anytime. Quiz content is bundled for offline use, and no account is required. CHOOSE YOUR STYLE Switch between Classic and a neutral black-and-white Dark appearance in Settings. Your lock screens follow your chosen style, while quiz artwork keeps its original colors. HAVE AN IDEA OR NEED HELP? Use the Feedback tab to write a message and send it to joma@lockfeed.app from your email account. Unsent drafts are saved on your device. LockFeed uses Apple Screen Time permission to manage access to the apps you select. Short practice quizzes are learning aids, not complete exam preparation courses or official exam simulations.
Screenshots
Verdict
The clearest difference is update cadence: LockFeed at daily against Lemmelingo's every 5 weeks. Lemmelingo's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price, 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. Lemmelingo sells 3 in-app purchases, starting at $7.99 per month and LockFeed sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Lemmelingo ships an update every 5 weeks, LockFeed daily. The most recent releases landed on October 28, 2026 and October 26, 2026 respectively.
| Parameter | Lemmelingo | LockFeed |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.3 (11 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 11 — better |
| Update frequency | Every 5 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 55 MB | 33 MB |
| Age rating | 4+ | 12+ |
| Developer | Dimitar Kurtev | Mosaic Integral Innovations LLC |
In-app purchases
Lemmelingo
- Monthly Subscription$7.991 Month
- Semi-Annual Saver$34.996 Months
- Yearly Best Value$44.991 Year
LockFeed
- Lifetime Access$0.99
- Lifetime Access$2.99
- Lifetime Access$4.99
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- Lifetime Access$9.99
- Lifetime Access$19.99
- Lifetime Access$30.00








