lemma vs SMA LMS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
lemma
This app provides focused, daily practice for quantitative interviews, featuring timed sprints of math and probability problems. It tracks your skill across disciplines with adaptive difficulty and offers hints and solutions to help you improve. Designed for those preparing for trading firm interviews or seeking to build a quantitative thinking habit.
- Daily timed problem sprints
- Per-category ELO skill tracking
- Adaptive difficulty
- Hints and step-through solutions
- Streaks, XP, and achievements
- Leaderboard
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Train like a quant. Daily. Lemma is the focused, no-fluff prep app for quantitative interviews — built for students and grads targeting Jane Street, Citadel, Optiver, Two Sigma, and the rest of the trading-firm gauntlet. WHAT'S INSIDE WITH YOUR SUBSCRIPTION • Daily sprints — bite-sized timed sets of mental math, probability, combinatorics, expected value, and market-making problems • Per-category ELO — your skill is tracked across 10 disciplines, from Novice to Expert • Adaptive difficulty — problems chosen to keep you at the edge of your level, not above or below • Hints + step-through solutions — get unstuck without giving up • Streaks, XP, leagues — habit loops without the noise • Achievements — unlock as you grind • Leaderboard — see how you stack up WHO IT'S FOR • CS / math undergrads applying to trading firms • Recent grads prepping for technical interviews • Self-learners who want a daily quantitative-thinking habit • Anyone curious about how trading interviews actually feel WHY LEMMA We strip out the gamified clutter and keep what matters: hard problems, fast iteration, real numbers on your progress. The interface borrows more from a Bloomberg terminal than a typical mobile game — monospaced metrics, hairline borders, dark by default. Most prep books drown you in 800 pages. Most courses lock you in for months. Lemma is 10 minutes a day, sharpened every day. — Lemma offers an optional auto-renewable subscription for unlimited daily sprints and premium problem sets. Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple ID settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://rogeru13.github.io/lemma-legal/privacy-policy/
SMA LMS
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SMA LMS is the official learning platform for Shahriar's Medical Academy (SMA) — a leading AMC exam preparation institute for international medical graduates (IMGs). Students can access their enrolled courses, watch video lessons, track progress, take MCQ practice exams, view class schedules, download study materials, and manage their payments — all from their phone. Features: • Video lessons with drip scheduling • MCQ practice exams with instant results • Class timetable and announcements • Payment records and receipts • Push notifications for classes and updates • Secure login with your SMA account
Screenshots
Verdict
The clearest difference is in-app purchases: SMA LMS at none against lemma's 3. On price, ads, device support and iOS requirement 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. lemma sells 3 in-app purchases, starting at $6.99 per 7 days. SMA LMS asks for nothing beyond the download.
| Parameter | lemma | SMA LMS |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 days | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 31 MB | 31 MB |
| Age rating | 12+ | 4+ |
| Developer | Roger You | Sheikh Istemam Ahmed Utsho |
In-app purchases
lemma
- Lemma Premium$6.997 Days
- Lemma Premium$9.991 Month
- Lemma Premium3 Days trial$59.991 Year
SMA LMS
No in-app purchases





