Rectoly translates the paper you are reading into the language you read in, and the model that does it runs on the iPad in your hands. Nothing is uploaded and nothing waits in a queue on someone else’s server: once the model is on the device, translation works on a plane, in a reading room, anywhere with no signal.
In Reading Mode every paragraph keeps its place, and its translation appears directly beneath it. Original and translation in one movement of the eye — you can always see which sentence a translated line came from.
Switch the PDF page from the original to the translation and the layout stays as it was: the same columns, the same figures in the same places, the text in your language. One tap switches back.
While you read, Rectoly translates the paragraphs ahead of you, so the next page is ready when you reach it. It backs off when the iPad gets warm or goes into Low Power Mode, and it works through the rest of your library only while the iPad is cool and charging.
An iPad or iPhone that cannot run the model — or one you would rather not heat up — can hand the job to Rectoly on your Windows or Linux machine over the same network. The computer translates on its GPU, the translation comes back, and it is kept with the paper so every device you read on has it.
The translation sits under the paragraph you are reading, so you can work through the original and check yourself against it without leaving the page.
There is no server in the loop — no upload, no API key, no account holding a copy. A manuscript under embargo or out for review is translated on your own device.
Once the model is downloaded the whole thing works offline. Translate a stack of papers the night before and read them in the air.
Download it free from the App Store and try everything. If it earns a place in your day, buy it once. No subscription.