Comparison

Acute Calculator vs EngKit

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

Head to head
About

Acute Calculator

This advanced graphing calculator offers a visual editor and supports over 30 functions. It includes features like a history tape, variable storage, and an intuitive palette system for complex calculations.

Highlights
  • Visual editor
  • 30+ functions supported
  • History tape
  • Store variables
  • Intuitive palette system
Features
Read full description

+ Easy to use visual editor + Supports 30+ functions + Intuitive palette system + Comes with history tape + Store variables for later + No ads or subscriptions Terms of Use: https://acutecalc.app/terms Privacy Policy: https://acutecalc.app/privacy

About

EngKit

Features
Read full description

EngKit is a focused toolkit of engineering and math calculators, built for students, hobbyists and professionals who want fast, accurate tools without clutter. FREE MODULES • Resistor Code — decode resistance from color bands, convert between SI units • Ohm's Law — calculate voltage, current and resistance interactively • LED Resistor Calculator — find the right series resistor for any LED and supply voltage • Voltage Divider — design resistor voltage dividers for any target output • Resistor Network — equivalent resistance for series and parallel circuits • Matrix Calculator — add and multiply matrices up to 10×10 • Graphing Calculator — plot and explore math functions with pan and zoom • Unit Converter — convert between 14 categories: length, mass, temperature and more PRO MODULES (one-time unlock) • Complex Numbers — add, subtract, multiply and divide in rectangular or polar form • Capacitor Code — decode capacitance from EIA 3-digit codes and tolerance letters • Equation Solver — solve linear, quadratic and 2×2 systems of equations • Triangle Solver — solve triangles and trig functions with exact values • Root Finder — bisection, false position, Newton-Raphson and secant No subscriptions. No ads. Pay once for Pro and keep every current and future module.

Screenshots

Acute Calculator4 screens
EngKit4 screens

Verdict

The call

The clearest difference is update cadence: Acute Calculator at every 2 days against EngKit's every 2 weeks. Acute Calculator also leads on iOS requirement (16.0 vs 26.1). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Acute Calculator sells 3 one-off in-app purchases and EngKit sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Acute Calculator ships an update every 2 days, EngKit every 2 weeks. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.

Scorecard2 real differences · 8 level
Acute Calculator versus EngKit: the parameters behind the verdict, then further details
ParameterAcute CalculatorEngKit
PriceFreeFree
Rating4.9 (116 ratings) — better—
Positive reviews94.9% of reviews—
Number of ratings116 — better—
Update frequencyEvery 2 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better26.1
Further details — not scored
Size16 MB5 MB
Age rating4+4+
DeveloperFind App, Inc.Rodrigo Vivas

Bugs and requests

Acute Calculator

Reported bugs

6 issues
  • Animation and UI bugs
  • Discount button crashes app
  • Animation lags and skips when sliding down history
  • Calculations are incorrect
  • Does not follow correct order of operations
Show 1 more
  • Transition for history is slow

Requested features

11 requests
  • Make app icon simpler/restrained
  • Add units to graph
  • Allow press and hold on graph lines for values
  • Support Korean language
  • Display commas while entering numbers
Show 6 more
  • Double-tap to recenter graph interface
  • Ability to solve for a variable
  • Dedicated button for +/-
  • Option to pin in control center
  • Make comma separator format selectable
  • Improve app icon design

EngKit

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Acute Calculator

One-time3
  • Acute Plus Limited-Time Offer$3.49
  • Acute Plus (For Students)$4.99
  • Acute Plus (One Time)$6.99
1 purchases

EngKit

One-time1
  • Pro Unlock$6.99

Questions

Is Acute Calculator free?
Acute Calculator is free to download, with in-app purchases available.
Is EngKit free?
EngKit is free to download, with in-app purchases available.
Do Acute Calculator or EngKit have ads?
Neither Acute Calculator nor EngKit shows ads.
Which is updated more often, Acute Calculator or EngKit?
Acute Calculator ships an update every 2 days, and EngKit every 2 weeks. Most recently, Acute Calculator was updated on October 16, 2026 and EngKit on October 14, 2026.

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