Comparison

Keyplan 3D vs Paint Calculator Plus

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

Head to head
About

Keyplan 3D

Design and decorate your dream home with an intuitive interface. Easily build walls, place furniture, and visualize your projects in real-time 2D and 3D. Share your creations with friends and family.

Highlights
  • House builder with easy wall creation
  • Interior design with furniture placement
  • Extensive decoration options
  • Real-time 2D/3D editing
  • iCloud synchronization
  • Project sharing
Features
Read full description

Keyplan 3D, our new home and interior designer is built on top of a unique technology unleashing features never seen before on the Appstore. It is a simple to use, useful and fun App to help you design, build, think and decorate your home or future home from the ground up. Whether you are looking to make alterations to your current home or plan on building your dream house, Keyplan 3D is there to turn this otherwise complicated process into child's play. Through our beautiful interface, designed with simplicity in mind, you can create amazing content without ever having to worry about complex menus and cryptic options. Create a wall or room by simply using our build button and our smart engine will take care of the rest. Forget about loading screens and unresponsive Apps : with Keyplan 3D you can visualise your project through our gorgeously rendered plans, which are both fully interactive and updated in real-time. Every aspect of Keyplan 3D has been designed to enable you to express your creativity like never before. Behind Keyplan 3D there is a powerful technology, allowing you to build any shape imagineable, paint, decorate and place more than 350 free unique objects. Feeling proud of your creations? Go ahead and share them with your friends and family on your favourite social media platform. Main features: - House builder : creating walls is as easy as drawing a line with a pencil. Any shape is possible with our unique 2D/3D editing features. - Interior design : Place furniture, windows, doors - edit, change, remove, in either the 2D or 3D view. - Decoration : A large selection of paints, brick, wood, ceramic, textile to be used on any object or surface. Expect new free objects on a regular basis. - Many customisation options such as wall width and height settings, inch/meter conversion. - iCloud synchronisation to enjoy your project on all your devices, iPhone and iPad. - Sharing : share 2D snapshots and 3D renders of your plan with your friends/family. Try it out and let us know what you think - we made Keyplan 3D for you and our only goal is to offer you the best experience out there. A nice video presentation: http://bit.ly/1DACRHo For more information, visit us on www.keyplan3d.com Contact us to: contact@keyplan3d.com

About

Paint Calculator Plus

Estimate the exact amount of paint and primer needed for any project. Input wall dimensions and exclude areas like doors and windows for precise calculations. Supports metric and imperial units.

Highlights
  • Instant paint calculations
  • Input multiple walls and surfaces
  • Exclude doors, windows, and openings
  • Automatic area calculations
  • Supports metric and imperial units
  • Copy results to other apps
Features
Read full description

Use the Paint Calculator to estimate how much paint and primer you’ll need for your project. Before you buy, use our paint calculator to determine exactly how much paint is required to transform your space. Add up the total square footage if you're painting more than one room with the same color. Features: • Instant calculations • Input multiple walls or surfaces to paint • Input multiple doors, windows, or openings to exclude • Automatic paint area calculation • Automatic excluded area calculation • Wall surface types: very smooth, smooth, common, or rough • Estimate paint and primer usage • Supports both Metric and Imperial systems • Results can be copied to other apps Enter the dimensions of your walls, then enter the dimensions of the areas you don't want to paint, such as windows, doors, or openings. Please Note: These calculations are intended to provide only a rough estimate. Actual paint requirements may vary based on several factors, including application method. Thank you for your support! Visit nitrio.com for more apps for your iOS devices.

Screenshots

Keyplan 3D4 screens
Paint Calculator Plus4 screens

Verdict

The call

The clearest difference is review sentiment: Keyplan 3D at 63% against Paint Calculator Plus's 0%. Keyplan 3D also leads on update cadence (every 2 months vs every 38 months). Paint Calculator Plus's advantage is in-app purchases (none vs 11) and price ($2.99 vs $5.99). On 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

Keyplan 3D costs $5.99 and Paint Calculator Plus $2.99 up front. Keyplan 3D sells 10 one-off in-app purchases. Paint Calculator Plus asks for nothing beyond the download.

UpkeepUpdate frequency

Keyplan 3D ships an update every 2 months, Paint Calculator Plus every 38 months. The most recent releases landed on September 28, 2026 and July 5, 2026 respectively.

Scorecard7 real differences · 4 level
Keyplan 3D versus Paint Calculator Plus: the parameters behind the verdict, then further details
ParameterKeyplan 3DPaint Calculator Plus
Price$5.99$2.99 — better
Rating4.6 (5.2K ratings) — better—
Positive reviews63.3% of reviews — better0.0% of reviews
Number of ratings5.2K — better—
Update frequencyEvery 2 months — betterEvery 38 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank—#200 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS1612.0 — better
Further details — not scored
Size633 MB9 MB
Age rating4+4+
DeveloperQuasarts LLCHeng Jia Liang

Customer experience

Keyplan 3D

All ratings5,188 ratings
Positive90.7%
Neutral6.6%
Negative2.7%
Written reviews300 reviews
Positive63.3%
Neutral14.0%
Negative22.7%

Paint Calculator Plus

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

Keyplan 3D

Reported bugs

5 issues
  • App crashes when adding windows or doors
  • Purchased items not syncing or restoring properly
  • Measurements displayed upside down
  • Walls and objects not behaving as expected
  • Frequent loss of user projects and designs

Requested features

5 requests
  • Add ability to create multi-story buildings
  • Implement more flexible wall editing tools
  • Expand furniture, decor, and material options
  • Improve export and sharing capabilities
  • Introduce a color wheel for custom colors

Paint Calculator Plus

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Keyplan 3D

One-time10
  • Creativity$0.99
  • Family$1.99
  • Outdoor$1.99
Show 7 more
  • Kitchen$1.99
  • Bathroom$1.99
  • Entertainment Pack$1.99
  • Bedroom pack$1.99
  • Reward$2.99
  • Office$2.99
  • Living room pack$2.99
None

Paint Calculator Plus

No in-app purchases

Questions

Is Keyplan 3D free?
Keyplan 3D costs $5.99, and also offers in-app purchases.
Is Paint Calculator Plus free?
Paint Calculator Plus costs $2.99, with no in-app purchases.
Do Keyplan 3D or Paint Calculator Plus have ads?
Neither Keyplan 3D nor Paint Calculator Plus shows ads.
Which is updated more often, Keyplan 3D or Paint Calculator Plus?
Keyplan 3D ships an update every 2 months, and Paint Calculator Plus every 38 months. Most recently, Keyplan 3D was updated on September 28, 2026 and Paint Calculator Plus on July 5, 2026.

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