Comparison

CellRobot vs RetroScreens

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

Head to head
About

CellRobot

This application serves as the controller for a custom modular robot system. It enables users to build and program various robot configurations, fostering creativity and engineering knowledge through hands-on exploration. Requires the purchase of the robot hardware to function.

Highlights
  • Control custom modular robots
  • Build hundreds of robot shapes
  • Visual script programming
  • Hands-on engineering exploration
  • Inspires creativity
Features
Read full description

This App is the controller of CellRobot. You have to buy the hardware of CellRobot first, then use this App to control. CellRobot is the most advanced custom modular robot, inspiring creativity & enforcing engineering knowledge through hand-on exploration. CellRobot is the first complete consumer robotics kit that allows you to build your very own robots. Feature: 1.CellRobot can be built into hundreds of different shapes. The only limitation is your imagination. 2.CellRobot using visual script programming to decrease the requirements of creating new robots into almost zero. 3.CellRobot provides hand-on experience for people to explore creativity and engineer knowledge. Please don’t hesitate to contact us at support at keyirobot.com if you have any questions or need help

About

RetroScreens

Features
Read full description

RetroScreens is a library of classic-inspired ambient motion visuals, rebuilt as modern native scenes for iPhone, iPad, Apple TV, and Mac. Open the app, pick a visual, and let your device become a quiet piece of motion design: morphing geometry, 3D pipes, color fields, starfields, flip clocks, split-flap boards, plasma waves, sand-table paths, cellular patterns, and more. The launch catalog includes 24 visuals: - Test Pattern - Departures - Lorenz - Rosette - Lifelike - Flip Clock - Neon Grid - Plasma - Flocks - Flying Microwaves - Starfield - Mystique - Lake - Pipeworks - 3D Text - Tunnel - Shapeshifter - Ribbons - Green Rain - Bubbles - Cradle - Filament - Bounce - Sand Table RetroScreens is built for the Apple devices you already have: - Play immersive foreground visuals on iPhone and iPad - Use the Apple TV app as a living-room visual library - Use the Mac app directly - Unlock the full v1 catalog once and use it across supported Apple platforms with the same App Store account Some visuals are precise and minimal. Some are bright, strange, and nostalgic. All of them are rendered on-device and tuned for foreground playback, ambient presentation, and slow visual texture. RetroScreens includes free starter visuals. Full Unlock opens the full premium catalog and premium settings.

Screenshots

CellRobot4 screens
RetroScreens4 screens

Verdict

The call

The clearest difference is in-app purchases: CellRobot at none against RetroScreens's 1. CellRobot also leads on iOS requirement (9.0 vs 17.0). RetroScreens's advantage is update cadence (every 6 days vs every 6 weeks). On price, ads 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. RetroScreens sells 1 one-off in-app purchase. CellRobot asks for nothing beyond the download.

UpkeepUpdate frequency

CellRobot ships an update every 6 weeks, RetroScreens every 6 days. The most recent releases landed on September 23, 2026 and October 1, 2026 respectively.

Scorecard3 real differences · 6 level
CellRobot versus RetroScreens: the parameters behind the verdict, then further details
ParameterCellRobotRetroScreens
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 6 weeksEvery 6 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, Mac, Apple TV — better
Requires iOS9.0 — better17.0
Further details — not scored
Size142 MB40 MB
Age rating4+4+
DeveloperBeijing KEYi Technology Co., Ltd.Dave Davis

In-app purchases

None

CellRobot

No in-app purchases

1 purchases

RetroScreens

One-time1
  • Unlock All$9.99

Questions

Is CellRobot free?
CellRobot is free to download, with no in-app purchases.
Is RetroScreens free?
RetroScreens is free to download, with in-app purchases available.
Do CellRobot or RetroScreens have ads?
Neither CellRobot nor RetroScreens shows ads.
Which is updated more often, CellRobot or RetroScreens?
CellRobot ships an update every 6 weeks, and RetroScreens every 6 days. Most recently, CellRobot was updated on September 23, 2026 and RetroScreens on October 1, 2026.

Other comparisons