R² 0.9974
Curve fitting
Adsorption kinetics, pseudo-first order: qe = 48.8 ± 0.8 mg/g. More than 200 ready-made models, or your own equation.
Plotar · for Mac
Scientific graphs, ready to publish.
From instrument data to the figure in your paper, in minutes. Do it yourself or just ask the Assistant.
- US$ 59.99 one-time purchase
- 100 credits of AI to try it out
- Apple silicon Mac · macOS 14 or later
Opens what the lab produces
- TXT
- CSV
- DAT
- XLSX
- XLS
- ODS
- XRDML
- Thermal analysis
- OPJU projects
Without AI too
From data to figure in four steps, with no side spreadsheet.
The screenshots and the video were made with the app in Portuguese. On a Mac set to English, Plotar runs in English.
Data analysis
The lab's math, marked right on the graph.
Band deconvolution
Three overlapping bands, separated and measured.
Raman spectrum of carbon. The baseline is removed first; the D, D3 and G bands are fitted together.
| Band | Center (cm⁻¹) | FWHM | Area |
|---|---|---|---|
| D | 1350.0 ± 0.04 | 60.3 | 48.7% |
| D3 | 1500.0 ± 0.2 | 90.9 | 22.2% |
| G | 1590.0 ± 0.05 | 45.2 | 29.1% |
R² 0.9991sum of the bands against the data
5 peaks, 2 phases
Peaks and phases in XRD and FTIR
Anatase and rutile marked at the positions you provide. The baseline is corrected before labeling.
Savitzky–Golay
Smoothing, derivative and integral
A 15-point window over a noisy spectrum. The result goes onto the graph in one click.
Sample data; calculations and graphs made by Plotar (axis numbers use the decimal comma). Also: linear and polynomial regression, model comparison, descriptive statistics, FFT and batch processing, where several files with the same columns each become a graph.
Gallery
More than 200 graph types. All of these came out of Plotar itself.
- Basic 2D
- Bar, pie and area
- Panels and axes
- Statistical
- Contour
- Maps
- Specialized
- Categorical
- 3D
Pricing
Buy the app once. Subscribe to the AI only if you want it.
Plotar
US$ 59.99
one-time purchase on the Mac App Store
- The whole app, with no time limit
- Import, graphs, analysis and export
- Works offline
- 100 credits for the Assistant, to try it out
Plotar AI
US$ 9.99
per month, in-app subscription
- 300 credits per month
- The full Assistant: graphs, worksheets, fits and attachments
- Cancel anytime in your Apple account settings
Plotar AI Plus
US$ 14.99
per month, in-app subscription
- 700 credits per month
- For those who analyze many samples with the Assistant
- Switch from Plotar AI to Plus instantly
Prices in US dollars. In other countries the App Store shows the equivalent in the local currency.
- Native to macOSmenus, shortcuts, dark mode and system printing
- Your data on your Macno account, no ads; only the Assistant uses the internet
- Six languagesEnglish, Portuguese, Italian, French, German and Spanish
- Visual manual41 pages in the Help menu (in Portuguese)
Frequently asked questions
Before you buy
Do I need the internet to use Plotar?
No. Importing, plotting, fitting, analyzing and exporting all work offline. Only the Assistant needs a connection, and only at the moment you send a request.
Does Plotar work without the AI subscription?
Yes. The purchase unlocks the whole app, with no time limit, and includes 100 credits to try the Assistant. The subscription is only needed to keep using the Assistant after those credits.
Which Macs are supported?
Macs with Apple silicon (M1 or newer) and macOS 14 Sonoma or later.
Can I open the OPJU projects I already have?
Yes. Plotar opens OPJU projects with their worksheets and graphs, so you can pick up where you left off. Very project-specific features may need some fine-tuning after opening.
What does the Assistant send, and where?
The text of the request, a summary of the open project, the worksheet values it looks up and the files you attach. The request goes through the Plotar AI service, which checks the purchase, and is answered by Anthropic's Claude model. The Plotar server does not store the text of requests, the answers or your data. Details in the privacy policy.
How do I cancel the subscription?
In your Apple account settings, at least 24 hours before renewal. The app remains yours; only the Assistant stops receiving new credits.
Which languages is the app in?
English, Brazilian Portuguese, Italian, French, German and Spanish. The interface follows the language set on your Mac.
Is there a manual?
Yes. The Help menu opens a 41-page visual manual, currently in Portuguese, with screenshots of the app, numbered steps and a map of the window in which each area leads to its explanation.
Make your next figure in Plotar.
US$ 59.99, once. With 100 credits to get to know the Assistant.