Keyplan 3D Lite vs SecondFloor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Keyplan 3D Lite
Design and decorate your home or dream house with this intuitive interior design app. Easily create walls, rooms, and add furniture with a user-friendly interface and real-time 3D visualization. Share your stunning creations with friends and family.
- House builder with 2D/3D editing
- Interior design with furniture placement
- Extensive decoration options
- Customizable wall settings
- iCloud synchronization
- 2D snapshot and 3D render sharing
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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
SecondFloor
Instantly create detailed floor plans by scanning interiors with LiDAR. AI automatically detects walls, windows, and doors, with real-time feedback and easy on-device editing. Share finished plans directly from the app.
- Instant floor plans with LiDAR
- AI detection of walls, windows, doors
- Real-time scanning feedback
- On-device editing
- Built-in sharing
- GLA Square Footage/Meters
- Custom room labels
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SecondFloor is the fastest way to create a finished floor plan. Scan the interior of a home using LiDAR and instantly receive a floor plan. SecondFloor uses AI to automatically detect walls, windows, doors, and more while providing you with real time feedback to your scanning progress. Quickly edit each floor plan from within the app. Built in sharing allows you to share finished floor plans while still on-site. SecondFloor requires a paid subscription and a LiDAR equipped device. Features: • Instant floor plans • GLA Square Footage/Square Meters • Individual room measurements • AI detects and places fixed furniture • Guided scanning instructions • Custom Room labels • LiDAR accurate dimensions • Easily edit on device • Secure on device processing • Built in sharing • Unlimited floor plan scanning • Simple upfront pricing • No internet required for use • Integrated instructions for use • Integrated support features Localized Features: • Metric & Imperial room measurements & area calculations (System Measurement Preference) • Single digit decimal room measurement precision for Australia & New Zealand (System Region) • Regional room label presets (System Language) • Minimum stair tread sized to regional building codes (System Region) Supported Languages: • English - US • English - UK • English - Canada • English - Australia • English - New Zealand • Dutch • French - Canada • French - France • Finnish • German • Hindi • Italian • Portuguese - Brazil • Spanish - Spain • Spanish - Latin American Terms & Conditions: Your use of this application is governed by the SecondFloor Terms and Conditions (http://secondfloorapp.com/terms-and-conditions/) and the SecondFloor Privacy Policy (http://secondfloorapp.com/privacy-policy/)
Screenshots
Verdict
The clearest difference is monetization model: Keyplan 3D Lite at free with in-app purchases against SecondFloor's subscription. Keyplan 3D Lite also leads on ratings volume (53K vs 16) and rating (4.5 vs 4.3). SecondFloor's advantage is update cadence (fortnightly vs every 3 months). On price, review sentiment, ads and in-app purchases 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
Both are free to download. Keyplan 3D Lite sells 11 one-off in-app purchases and SecondFloor sells 4 in-app purchases, starting at $24.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Keyplan 3D Lite holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: Keyplan 3D Lite has 53K ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 64% of Keyplan 3D Lite's written reviews are positive against 60% of SecondFloor's.
Keyplan 3D Lite ships an update every 3 months, SecondFloor fortnightly. The most recent releases landed on September 24, 2026 and July 8, 2026 respectively.
| Parameter | Keyplan 3D Lite | SecondFloor |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (53K ratings) — better | 4.3 (16 ratings) |
| Positive reviews | 64.5% of reviews — better | 60.0% of reviews |
| Number of ratings | 53K — better | 16 |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases — better | Subscription |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 16 — better | 17.0 |
| Further details — not scored | ||
| Size | 633 MB | 120 MB |
| Age rating | 4+ | 4+ |
| Developer | Quasarts LLC | Right Home Media Inc. |
Customer experience
Keyplan 3D Lite
SecondFloor
Bugs and requests
Keyplan 3D Lite
Reported bugs
4 issues- Designs disappearing or becoming corrupted
- Restore purchase feature not working
- Frequent crashes when adding certain elements
- Glitches with object placement and sizing
Requested features
6 requests- Add option for multiple floors/levels
- Improve wall and object manipulation tools
- Expand furniture, decor, and landscaping options
- Allow importing of custom objects and textures
- Add roof and exterior design capabilities
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- Improve 3D view and navigation
SecondFloor
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Keyplan 3D Lite
- Family$1.99
- Outside$1.99
- Bathroom$1.99
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- Entertainment Pack$1.99
- Bedroom pack$1.99
- Kitchen$1.99
- Reward$2.99
- Living room pack$2.99
- Office$2.99
- Garage pack$2.99
- Standard version$5.99
SecondFloor
- Weekly Subscription7 Days trial$24.997 Days
- Monthly Subscription7 Days trial$49.991 Month
- Yearly Subscription7 Days trial$249.991 Year
- Day Pass$9.99









