Comparison

lemma vs SMA LMS

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Daily timed problem sprints
  • Per-category ELO skill tracking
  • Adaptive difficulty
  • Hints and step-through solutions
  • Streaks, XP, and achievements
  • Leaderboard
Features
Read full description

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/

About

SMA LMS

Features
Read full description

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

lemma4 screens
SMA LMS3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

Scorecard1 real difference · 8 level
lemma versus SMA LMS: the parameters behind the verdict, then further details
ParameterlemmaSMA LMS
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 days—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.115.1
Further details — not scored
Size31 MB31 MB
Age rating12+4+
DeveloperRoger YouSheikh Istemam Ahmed Utsho

In-app purchases

3 purchases

lemma

Subscriptions3
  • Lemma Premium$6.997 Days
  • Lemma Premium$9.991 Month
  • Lemma Premium3 Days trial$59.991 Year
None

SMA LMS

No in-app purchases

Questions

Is lemma free?
lemma is free to download, with in-app purchases available.
Is SMA LMS free?
SMA LMS is free to download, with no in-app purchases.
Do lemma or SMA LMS have ads?
Neither lemma nor SMA LMS shows ads.

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