Comparison

Asttrolok vs Formulary+

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

Head to head
About

Asttrolok

Features
Read full description

Learn Astrology is your all-in-one platform to study astrology through structured courses, interactive workshops, and teacher-guided programs designed for every level of learner. Explore a complete learning experience with video lessons, PDF notes, and real-time guidance from experienced teachers. Whether you’re a beginner or an advanced student, our step-by-step programs help you understand astrology concepts clearly and practically. Connect with certified astrologers for offline phone consultations to clarify your doubts and strengthen your learning. All consultations take place outside the app β€” no chats, video calls, or paid digital content are included inside the app. Stay inspired with the latest YouTube learning content, regular workshop updates, and community insights. Key Features: β€’ Teacher-guided astrology courses & workshops β€’ Step-by-step video and PDF learning materials β€’ Offline astrologer consultations for extra guidance β€’ Structured programs for all skill levels β€’ Educational and informational content only Empower your journey β€” Learn Astrology the right way, with guidance that grows your knowledge.

About

Formulary+

Features
Read full description

Formulary+ is not another formula list. It is a complete computational reference β€” 4,727 formulas across 16 disciplines, each with an interactive solver, evaluator, or worked example that lets you compute, verify, and learn, not just look things up. Every equation is rendered in real-time LaTeX (KaTeX), not screenshots. Every variable is defined with its SI unit. And every formula you open is one you can actually use. WHAT MAKES IT DIFFERENT Interactive Solver β€” Pick any variable, enter the rest, get the answer with full step-by-step solution. Covers 1,500+ formulas across all 16 disciplines. Evaluator β€” For identities, bounds, and series: plug in numbers and see both sides computed side by side. You see not just that a claim holds, but by how much. Worked Examples β€” For complex equations (tensors, PDEs, procedures): a real computation with real numbers, showing every substitution step. Personal Notes β€” Write directly on any formula. Export all notes as Markdown β€” your work is never locked in. 4,727 FORMULAS Β· 16 DISCIPLINES Β· 150 SUBCATEGORIES Mathematics β€” 356 formulas Algebra Β· Calculus Β· Linear Algebra Β· Differential Equations Β· Statistics & Probability Β· Number Theory Β· Discrete Math Physics β€” 448 formulas Classical Mechanics Β· Thermodynamics Β· Electromagnetism Β· Optics Β· Waves Β· Quantum Mechanics Β· Relativity Β· Fluid Mechanics Chemistry β€” 241 formulas Stoichiometry Β· Thermochemistry Β· Kinetics Β· Equilibrium Β· Electrochemistry Β· Quantum Chemistry Geometry β€” 229 formulas Euclidean Β· Analytic Β· Differential Β· Topology Mechanical Engineering β€” 342 formulas Computer Science β€” 355 formulas Electrical Engineering β€” 319 formulas Civil Engineering β€” 343 formulas Biology & Biomedical β€” 203 formulas Environmental Engineering β€” 311 formulas Geological Engineering β€” 271 formulas Geochemistry β€” 204 formulas Geophysics β€” 215 formulas Chemical Engineering β€” 325 formulas Meteorology & Atmospheric Science β€” 296 formulas Astronomy & Astrophysics β€” 269 formulas BUILT FOR REAL WORK Real LaTeX rendering β€” KaTeX, not static images Full variable definitions with SI units Smart search across 4,727 entries Favorites β€” build your personal formula collection Related formulas β€” discover connected equations Share as LaTeX, plain text, or rendered image Export notes as Markdown Backup & restore your favorites and notes Dark mode Β· All iPhone & iPad sizes FREE TO TRY, FAIR TO BUY Browse the entire catalog for free β€” every category, every search result, every title. Open 5 formulas per day at no cost. Formulary Pro unlocks everything: Monthly β€” $1.99/mo Yearly β€” $19.99/yr (save 17%) Lifetime β€” $29.99 once, forever BUILT FOR Engineering students Β· Science undergrads Β· Graduate researchers Β· STEM professionals Β· Exam prep (PE, FE, GATE, GRE) Β· Teachers & professors Β· Anyone who works with equations Formulary Pro is an auto-renewable subscription. - Formulary Pro Monthly / Formulary Pro Yearly - Payment is charged to your Apple ID account at confirmation of purchase. - Subscription automatically renews unless canceled at least 24 hours before the end of the current period. - Manage or cancel in your Apple ID Account Settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://kingerders.github.io/formulary/privacy

Screenshots

Asttrolok4 screens
Formulary+4 screens

Verdict

The call

The clearest difference is update cadence: Asttrolok at weekly against Formulary+'s monthly. Asttrolok also leads on iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Asttrolok sells 10 one-off in-app purchases and Formulary+ sells 12 in-app purchases, starting at $19.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Asttrolok ships an update weekly, Formulary+ monthly. The most recent releases landed on October 8, 2026 and October 24, 2026 respectively.

Scorecard2 real differences Β· 4 level
Asttrolok versus Formulary+: the parameters behind the verdict, then further details
ParameterAsttrolokFormulary+
PriceFreeFree
Update frequencyWeekly β€” betterMonthly
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 β€” better17.0
Further details β€” not scored
Size46 MB18 MB
Age rating4+4+
DeveloperAlok KhandelwalERDINC ERSOY

In-app purchases

10 purchases

Asttrolok

One-time10
  • Ayurveda$59.99
  • Nakshatras$149.99
  • Panchang and Muhurat$149.99
Show 7 more
  • Numerology$149.99
  • Medical Astrology$149.99
  • Jaimini Astrology$149.99
  • Career Astrology$149.99
  • KP Astrology$149.99
  • Astrology Level 2$249.99
  • Astrology Level 3$249.99
12 purchases

Formulary+

Subscriptions1
  • Yearly$19.991 Year
One-time11
  • Civil Engineering$0.99
  • Electrical Engineering$0.99
  • Geochemistry$0.99
Show 8 more
  • Meteorology & Atmospheric Science$0.99
  • Astronomy & Astrophysics$0.99
  • Chemical Engineering$0.99
  • Geophysics$0.99
  • Biology & Biomedical Engineering$0.99
  • Computer Science$0.99
  • All Disciplines Bundle$9.99
  • Lifetime$39.99

Questions

Is Asttrolok free?
Asttrolok is free to download, with in-app purchases available.
Is Formulary+ free?
Formulary+ is free to download, with in-app purchases available.
Do Asttrolok or Formulary+ have ads?
Neither Asttrolok nor Formulary+ shows ads.
Which is updated more often, Asttrolok or Formulary+?
Asttrolok ships an update weekly, and Formulary+ monthly. Most recently, Asttrolok was updated on October 8, 2026 and Formulary+ on October 24, 2026.

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