Lyrn vs Certly
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lyrn
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Business leaders, founders, investors, and researchers all need to keep pace with today's rapid growth of often technical & complex information and news. To keep up, and move forward in your career and field requires following research & new information in multiple sectors. It's not enough to get the headlines or read a social media post. To get an advantage, you need deeper insights, and analysis. Lyrn is your companion to help you track research & crucial developments in multiple business, investment and technical domains. Lyrn brings you curated, concise, ultra high quality, dynamic micro courses, with new courses added regularly. Our rigorous, expertly crafted micro courses are designed to help you rapidly take in key developments in key business sectors as well as in the underlying scientific research driving technology and business forward. Lyrn course are interactive, concise, and compelling, with advanced visuals, animations, and learning games that help you master complex topics quickly. Lyrn challenges you to explore and lock in new knowledge that can help put you ahead in your career, research, investments, business or other personal goals. Give it a try! Our catalog of deep courses is always growing. You wont find the same level of high quality deep content in any app!
Certly
Prepare for AI Architect certification exams with AI-powered study tools. Practice with realistic simulations, detailed explanations, and smart review features. Master key domains and build confidence before test day.
- AI-powered prompt writing drills
- Study by specific AI domains
- Realistic exam simulations
- Detailed answer explanations
- Spaced repetition review
- Daily challenges and streaks
- Quick study mode
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Practice for all four AI certification exams in one app: Associate, Developer, Architect and Architect Professional. 920 questions, each filed under the domain it tests at the weight the official exam guide publishes. ▸ Pick Your Exam Choose the certification you're sitting and the app follows it: its domains, its weights, its exam length. Switch any time. Each exam keeps its own progress, streak and history. ▸ Practice Exams at Real Length 60 items for the Foundations exams, 63 for Architect Professional, scored 100 to 1000 against the 720 passing line. Multiple-choice and multiple-response items, graded on an exact match with no partial credit, the way the real exam scores them. Change an answer, go back, flag questions to revisit, or end early and score what you have. ▸ Projected Score, Weighted by Domain Your score appears after 20 answers, counts only the exam you're preparing for, and weighs each domain the way the real score report does. ▸ Missed Questions Come Back Get one wrong and it returns the next day. Get it right and it comes back after 3, then 7, then 14 days, until it sticks. ▸ Explanations That Teach Every question explains why the right answer is right and why each wrong one is wrong, naming each option by what it says instead of by a letter. ▸ Prompt Lab Prompt-writing drills graded instantly and offline. Spot the flaw in a weak prompt, build a strong one block by block, or write your own against a precision rubric. ▸ Ten Minutes or One Domain Run ten mixed questions on the way to work, or drill a single domain. ▸ Daily Challenge, Streaks and Achievements A new question every day, accuracy tracked per domain, and milestones as you go. HOW IT WORKS 1. Choose your certification 2. Study by domain, take a quick session, or run a prompt drill 3. Read the explanation on every answer 4. Take a full practice exam when your projected score clears 720 Works offline. Sign in only if you want your answers, practice exams and bookmarks synced across devices. Everything works without an account. Free to use. An optional one-time purchase removes ads. No subscription. Independent study tool. Not affiliated with the exam provider.
Screenshots
Verdict
The clearest difference is update cadence: Lyrn at monthly against Certly's every 2 months. Lyrn also leads on iOS requirement (17.0 vs 26.2). On price, ads, in-app purchases and device support 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. Lyrn sells 2 in-app purchases, starting at $15.99 per month and Certly sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Lyrn ships an update monthly, Certly every 2 months. The most recent releases landed on October 11, 2026 and October 23, 2026 respectively.
| Parameter | Lyrn | Certly |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Monthly — better | Every 2 months |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 30 MB | 13 MB |
| Age rating | 12+ | 4+ |
| Developer | Taos Research Corporation | Gabriel Pevide |
In-app purchases
Lyrn
- Lyrn Monthly Unlimited Access$15.991 Month
- Lyrn Annual Unlimited Access$99.991 Year
Certly
- Remove Ads$4.99









