Comparison

CraftOS vs WattUp

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

Head to head
About

CraftOS

This app emulates a classic text-based computer environment, allowing you to write and run Lua programs. It's perfect for learning to code or exploring existing programs from a popular Minecraft mod, all within a retro terminal interface.

Highlights
  • Lua 5.2+ scripting environment
  • 16-color text-based terminal
  • Virtual filesystem
  • Built-in shell
  • Extensive APIs
  • Compatibility with ComputerCraft programs
  • Exclusive graphics mode
Features
Read full description

CraftOS-PC is a fantasy terminal that allows you to write and run programs inside an ‘80s-style text console. CraftOS-PC emulates the popular Minecraft mod "ComputerCraft", which adds programmable computers to Minecraft using the Lua programming language. CraftOS-PC takes this experience outside Minecraft to allow you to run the same programs anywhere you go. CraftOS-PC provides a set of functions (called APIs) that make it super easy to do simple tasks such as write text to the screen, read files, and more. The simplicity of these functions makes CraftOS-PC great for new programmers, but their power makes it possible to write all sorts of complex programs with less code. If you aren’t ready to write programs yet, there’s already a large number of programs for ComputerCraft that will work in CraftOS-PC, ranging from simple games to whole graphical operating systems. These can be downloaded through the built-in Pastebin and GitHub Gist clients. • Full Lua 5.2+ scripting environment and command-line REPL • 16-color text-based terminal display • Expansive virtual filesystem for program and data storage • Built-in shell with syntax similar to most desktop shells • APIs to easily access terminal, filesystem, Internet, event queue, and more • Built-in programs make it easy to navigate & edit files without a single line of code • Plenty of help documents to assist programmers • Compatibility with thousands of existing ComputerCraft programs • Over 3x faster than Minecraft mod and comparable emulators • Emulation of all peripherals available in ComputerCraft • Easily access configuration from inside CraftOS • Exclusive graphics mode providing up to 256-color, pixel-based screen manipulation • Edit Lua scripts from CraftOS or other code editing apps • Open-source app makes it easy to suggest and contribute changes Documentation on all of the APIs that ComputerCraft provides are available at https://tweaked.cc, and CraftOS-PC’s unique APIs are described at https://www.craftos-pc.cc/docs/. Join the CraftOS-PC community at https://www.craftos-pc.cc/discord!

About

WattUp

This application allows users to scan for and connect to wireless charging devices using Bluetooth. It enables configuration, control, and monitoring of transmitters and receivers, along with software updates for enabled devices.

Highlights
  • Scan for WattUp enabled devices
  • Connect via Bluetooth Low Energy (BLE)
  • Configure transmitters and receivers
  • Control charging devices
  • Monitor device status
  • Update device software
Features
Read full description

Energous Corporation is leading the next generation of wireless power and wireless charging – Wireless Charging 2.0 – with its award-winning WattUp® technology, which supports fast, efficient contact-based charging, as well as charging over-the-air. WattUp is a scalable, RF-based wireless charging technology that offers substantial improvements in contact-based charging efficiency, foreign object detection, orientation freedom and thermal performance compared to older, coil-based charging technologies. The technology can be designed into many different sized electronic devices for the home and office, as well as the medical, industrial, retail and automotive industries, and it ensures interoperability across products. These products can be configured, controlled and monitored by WattUp App. Features: - Scan for WattUp enabled wireless charging devices - Connect to devices over Bluetooth Low Energy(BLE) - Configure, control and monitor WattUp Transmitter and Receivers - Software update of WattUp enabled devices Note: - Supported on iOS 11 version or later - Bluetooth Low Energy(BLE) should be turned on

Screenshots

CraftOS4 screens
WattUp3 screens

Verdict

The call

The clearest difference is review sentiment: CraftOS at 88% against WattUp's 0%. CraftOS also leads on rating (4.8 vs 4.2) and ratings volume (17 vs 5). WattUp's advantage is in-app purchases (none vs 1) and update cadence (every 5 weeks vs every 4 months). On price, ads, monetization model 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. CraftOS sells 1 one-off in-app purchase. WattUp asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

CraftOS holds the better App Store score, 4.8 against 4.2. Both are backed by a comparable volume of ratings — 17 and 5 respectively. Written reviews point the same way: 88% of CraftOS's written reviews are positive against 0% of WattUp's.

UpkeepUpdate frequency

CraftOS ships an update every 4 months, WattUp every 5 weeks. The most recent releases landed on September 18, 2026 and September 21, 2026 respectively.

Scorecard5 real differences · 5 level
CraftOS versus WattUp: the parameters behind the verdict, then further details
ParameterCraftOSWattUp
PriceFreeFree
Rating4.8 (17 ratings) — better4.2 (5 ratings)
Positive reviews88.2% of reviews — better0.0% of reviews
Number of ratings17 — better5
Update frequencyEvery 4 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.012.4 — better
Further details — not scored
Size11 MB22 MB
Age rating4+4+
DeveloperJack BruienneEnergous Corporation

Customer experience

CraftOS

All ratings17 ratings
Positive94.1%
Neutral0.0%
Negative5.9%
Written reviews17 reviews
Positive88.2%
Neutral0.0%
Negative11.8%

WattUp

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

1 purchases

CraftOS

One-time1
  • Plugin Collection 1$0.99
None

WattUp

No in-app purchases

Questions

Is CraftOS free?
CraftOS is free to download, with in-app purchases available.
Is WattUp free?
WattUp is free to download, with no in-app purchases.
Which has better reviews, CraftOS or WattUp?
CraftOS is rated higher. CraftOS averages 4.8 out of 5 from 17 ratings, while WattUp averages 4.2 from 5 ratings.
Do CraftOS or WattUp have ads?
Neither CraftOS nor WattUp shows ads.
Which is updated more often, CraftOS or WattUp?
CraftOS ships an update every 4 months, and WattUp every 5 weeks. Most recently, CraftOS was updated on September 18, 2026 and WattUp on September 21, 2026.

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