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Plus42 — Addictive strategy game with clan battles

Android Tools Thomas Okken
5.0 GP
2,083+
Google Play

Screenshots

Description

Been playing Plus42 for a couple months now. It’s basically an advanced scientific calculator app with a ton of features. Pretty solid if you’re into this kind of thing.

Here’s what you can do – there’s the standard calculator functions, but it also does stuff like time value of money, unit conversions, and even 2D plotting. It’s got a bigger display than the original HP-42S it’s based on, which is nice. Took me a while to figure out all the features but they’re pretty useful once you get the hang of it.

Look, if you’re into productivity apps and need a really powerful calculator, you’ll probably like Plus42. It’s not perfect – the UI can be a bit clunky at times – but overall it does the job. Worth checking out for sure.

Editor Opinion

So here's my take on Plus42. I've tested a bunch of calculator apps and this one's definitely one of the more feature-packed ones I've seen. The amount of scientific functions and customization is pretty impressive. It's not the most user-friendly thing ever, but if you put in the time to learn it, it's really capable. Compared to the free HP-42S emulator it's based on, the added features like unit conversions and 2D plotting make it worth the small buy price in my opinion.

Manya Lyalya
Author Manya Lyalya Editor, Grand Screen

Pros & Cons

Pros

  • Tons of advanced scientific functions and customization
  • Bigger display than the original HP-42S
  • Free to download, only pay for premium features
  • Runs smooth even on older phones
  • Great for serious math/science work

Cons

  • Can be overwhelming at first with all the features
  • UI is a bit dated and clunky
  • Upgrades/IAPs are a bit pricey
  • Not the most beginner-friendly calculator app

Specifications

Updated 10.10.2025
Category Tools
Age Rating Everyone
Developer Thomas Okken
Android Android 4.4++
Package Name com.thomasokken.plus42

Ratings

99
Google Play
5.0/5
166 reviews
Generally Favorable
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