Comparison

Thermo Jesus vs Calculus

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

Head to head
About

Thermo Jesus

This app provides comprehensive summaries, practice quizzes, and detailed problem solutions for thermodynamics topics. It includes a water properties calculator and an indexed equation search for easy reference. Access pre-thermo and energy topics immediately.

Highlights
  • 45+ topic summaries
  • 300+ practice quiz questions
  • 40+ practice problems/solutions
  • Water properties calculator
  • Searchable thermodynamic equations
  • Immediate access to pre-thermo and energy topics
Features
Read full description

A full access purchase gets you 45+ thermodynamic topic summaries, 300+ practice quiz questions, and 40+ practice problems/solutions. It also includes the water properties calculator! Additionally, every thermodynamic equation is indexed and searchable. The many quiz questions in the palm of your hand are a great tool to review any chapter before an exam! Access to the Pre-thermo and Energy topics available immediately.

About

Calculus

Learn calculus comprehensively through 10 chapters and reinforce your understanding with an interactive quiz game. This app caters to both beginners and advanced learners, offering hints and challenging problems. Enjoy a clear, adaptable interface with font size adjustments and light/dark mode support.

Highlights
  • 10-chapter calculus curriculum
  • Interactive calculus quiz game
  • Beginner to advanced learning paths
  • Adjustable font size
  • Light and dark mode support
  • Covers differentiation, integration, and differential equations
Read full description

Study Calculus from A to Z in 10 chapters, all in one app! Then play the in-app Calculus Quiz game to perfect your skills. One Level builds the necessary knowledge for the next Level as you advance. - Suitable for BEGINNERS: Teach yourself Calculus from Zero to the level of a Pro using the HINTS provided. - Adequate for the PROs: Revise and consolidate your Calculus knowledge while facing off with real Pure Math challenges. - Enjoy crisp clear Math text that adjusts its Font size and adapts to both Light and Dark Mode. Featured topics: - Differentiation 1: Curve gradient, Tangents and Normals, Velocity and Acceleration - Differentiation 2: Maxima and Minima, Curve sketching, Second derivative, Small changes - Integration: Reverse differentiation, Area under a curve, Definite integrals, Solids of Revolution, Centres of gravity - Further differentiation: Chain rule, Products and Quotients, Implicit functions, Parameters, Second derivatives - Trigonometry: Radian measure, Trigonometry derivatives, Inverse trigonometry, General solutions - Further Integration 1: Function and derivative, Change of variable, Parameters, Inverse trigonometry - Exponential and Log functions: The exponential function, Deriving y = e^x, The natural logarithm, Logarithmic differentiation - Partial fractions: Linear factors, Quadratic factors, Repeated roots, Improper fractions - Further Integration 2: Integration by parts, Taking dv/dx as 1, Variable t = tan(x/2), Splitting the numerator - Differential equations: Separating variables, Integrating factor, Homogenous equations, Differential problems

Screenshots

Thermo Jesus3 screens
Calculus4 screens

Verdict

The call

The clearest difference is review sentiment: Thermo Jesus at 100% against Calculus's 33%. Thermo Jesus also leads on rating (4.0 vs 3.5) and update cadence (every 3 weeks vs every 16 months). On price, ratings volume, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Thermo Jesus sells 3 in-app purchases, starting at $1.99 per month and Calculus sells 13 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Thermo Jesus holds the better App Store score, 4.0 against 3.5. Both are backed by a comparable volume of ratings — 4 and 4 respectively. Written reviews point the same way: 100% of Thermo Jesus's written reviews are positive against 33% of Calculus's.

UpkeepUpdate frequency

Thermo Jesus ships an update every 3 weeks, Calculus every 16 months. The most recent releases landed on October 24, 2026 and September 27, 2026 respectively.

Scorecard4 real differences · 6 level
Thermo Jesus versus Calculus: the parameters behind the verdict, then further details
ParameterThermo JesusCalculus
PriceFreeFree
Rating4.0 (4 ratings) — better3.5 (4 ratings)
Positive reviews100.0% of reviews — better33.3% of reviews
Number of ratings44
Update frequencyEvery 3 weeks — betterEvery 16 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size12 MB40 MB
Age rating4+4+
DevelopergitClimbing LLCRichard Ssenyonjo

Customer experience

Thermo Jesus

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Calculus

All ratings4 ratings
Positive50.0%
Neutral25.0%
Negative25.0%
Written reviews6 reviews
Positive33.3%
Neutral16.7%
Negative50.0%

In-app purchases

3 purchases

Thermo Jesus

Subscriptions2
  • Monthly Subscription14 Days trial$1.991 Month
  • Semesterly (6 months)14 Days trial$7.996 Months
One-time1
  • Lifetime Access$9.99
13 purchases

Calculus

One-time13
  • Get 1,000 Coins$0.99
  • Get 5,000 Coins$1.99
  • Get 10,000 Coins$2.99
Show 10 more
  • Unlock Calculus 1$2.99
  • Unlock Calculus 2$2.99
  • Unlock Calculus 3$2.99
  • Unlock Chapter 5$2.99
  • Unlock Calculus 8$2.99
  • Unlock Calculus 9$2.99
  • Unlock Calculus 4$2.99
  • Unlock Calculus 6$2.99
  • Unlock Calculus 7$2.99
  • Unlock Calculus 10$2.99

Questions

Is Thermo Jesus free?
Thermo Jesus is free to download, with in-app purchases available.
Is Calculus free?
Calculus is free to download, with in-app purchases available.
Which has better reviews, Thermo Jesus or Calculus?
Thermo Jesus is rated higher. Thermo Jesus averages 4.0 out of 5 from 4 ratings, while Calculus averages 3.5 from 4 ratings.
Do Thermo Jesus or Calculus have ads?
Neither Thermo Jesus nor Calculus shows ads.
Which is updated more often, Thermo Jesus or Calculus?
Thermo Jesus ships an update every 3 weeks, and Calculus every 16 months. Most recently, Thermo Jesus was updated on October 24, 2026 and Calculus on September 27, 2026.

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