Poly Duo (C1M)
Fast second check on a claim, before you publish
Two AIs from different companies, one tap. The disagreements are your verification list.
Get Duo — freeiPhone Get Duo — freeAndroid
On iPhone? Get the Duo shortcutOn Android? Get Duo on Google Play
iPhone · iOS 18+ · ChatGPT and Claude apps, free accounts are enough · Android: Google Play
One answer in three blocks
“Did the city’s budget for X grow by 40% since 2020?”
Both agree
It grew.
Where they differ
40% nominal vs. inflation-adjusted.
Check yourself
The published budget documents.
Three steps
- Tap the buttonIt opens the right download for your phone.
- Add itiPhone: tap Add, then tap the Duo tile — it starts. iPhone asks permission about 5 times: tap “Always Allow” each time, right away. Android: install the Poly app, Duo is inside.
- Ask your questionChatGPT answers, Claude checks, and you get the three blocks above. About a minute.
In the Poly app: Duo and even stronger things
Everything on this page, plus much more, especially if you have a laptop
AndroidGoogle PlayiPhone · soonApp Store
Everyone · Teachers · Students · Parents · Lawyers · Librarians · Health · Small business
Won’t open on iPhone? Download the file
The file goes to Files → Downloads — open it there and tap Add
Open source: Code on GitHub