Draft Paper vs ArithMetric Construction Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Draft Paper
Create floor plans, layouts, and blueprints with ease using intuitive drawing tools. Support for multiple layers, iCloud, and Dropbox integration allows for seamless workflow. Export your designs to various formats for printing or further editing.
- Draw lines, rectangles, text, and more
- Support for multiple layers
- Export to PDF, JPEG, and DXF
- iCloud and Dropbox integration
- Mirror, translate, rotate, and scale operations
- Apple Pencil support
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Draft Paper is a simple and intuitive way to make floor plans, layouts or blueprints quickly and easily. Touch and drag to draw lines and rectangles on up to 10 independent layers, then export directly to PDF, JPEG or DXF ready for printing, emailing or editing in other software. Full feature list: + Drawing: Line, Dotted Line, Arrow, Rectangle, Ellipse, Segment, Text, Erase, Measure, Presentation + Multi file iCloud support + Export to JPEG / Vector PDF / DXF + Upload / download from DropBox or any other compatible app + Mirror / translate / rotate / scale operations + Smooth, fast and intuitive zooming / panning + Multiple layers and colors + Selectable right / left handed modes. + Unlimited undo + Unlimited size drawing area + Apple Pencil support (including double tap) + Metric / Imperial (USC) units support + Designed for iPhone and iPad For full instructions please visit our website, http://draftpaper-app.com
ArithMetric Construction Calc
This app helps construction professionals convert and calculate measurements between metric and imperial units in real-time. It offers intuitive controls for design, build, and management tasks, allowing seamless translation of dimensions from CAD drawings to the field.
- Real-time metric to US unit conversion
- Calculate areas and dimensions
- Supports mm, ft, and inches
- Live updating for instant results
- Intuitive CAD drawing translation
- Advanced preferences in pro version
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Easily calculate and convert areas and measurements! * Converts and calculates in mm, ft, in, and regular mode. Double tap the screen to rotate through dimension input and output modes. * Features Live Updating, so you can see your measurements and calculations converted in real-time without the need to jump around to different screens or having to press 'convert' buttons. * Developed for people in the construction industry; design, build, and management who need an effective way off working off of metric or imperial architectural drawings. Allows the user to intuitively and quickly calculate and convert dimensions from CAD drawings to the field and vice versa. Calculate metric dimensions together with imperial and choose your desired output to quickly translate to the field! * Enjoy an ad-free experience by upgrading to the pro version for a one-time fee of $2.79 US. (Swipe left to access.) * Also available in the pro version is access to advanced preferences where you can: * Switch to your desired mode * Pick your theme * Select your desired measurement precision (1/4", 1/8", 1/16", 1/32") * Configure crash report settings Anything to share? Suggestions? Bugs? Email arithmetricapp@gmail.com
Screenshots
Verdict
The clearest difference is ratings volume: Draft Paper at 16K against ArithMetric Construction Calc's 41. ArithMetric Construction Calc's advantage is review sentiment (75% vs 51%) and update cadence (every 4 days vs every 2 weeks). On price, ads, in-app purchases and monetization model 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. Draft Paper sells 1 one-off in-app purchase and ArithMetric Construction Calc sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
ArithMetric Construction Calc holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Draft Paper has 16K ratings behind it against 41, so its average is the more settled of the two. Written reviews point the same way: 51% of Draft Paper's written reviews are positive against 75% of ArithMetric Construction Calc's.
Draft Paper ships an update every 2 weeks, ArithMetric Construction Calc every 4 days. The most recent releases landed on October 26, 2026 and October 6, 2026 respectively.
| Parameter | Draft Paper | ArithMetric Construction Calc |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (16K ratings) | 4.6 (41 ratings) — better |
| Positive reviews | 50.8% of reviews | 75.0% of reviews — better |
| Number of ratings | 16K — better | 41 |
| Update frequency | Every 2 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 2 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Giles Goddard | Gabor Ragalyi |
Customer experience
Draft Paper
ArithMetric Construction Calc
Bugs and requests
Draft Paper
Reported bugs
3 issues- Saved files disappearing or becoming corrupted
- Inconsistent behavior when zooming and panning
- Inability to import/export files as expected
Requested features
4 requests- Add copy/paste functionality
- Improve text editing capabilities
- Provide more precise measurement tools
- Implement ability to save multiple versions of a project
ArithMetric Construction Calc
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Draft Paper
- All Features$9.99
ArithMetric Construction Calc
- ArithMetric Pro Version$1.99
Questions
Is Draft Paper free?
Is ArithMetric Construction Calc free?
Which has better reviews, Draft Paper or ArithMetric Construction Calc?
Do Draft Paper or ArithMetric Construction Calc have ads?
Which is updated more often, Draft Paper or ArithMetric Construction Calc?
Other comparisons
