6,622 tools, each one opened, scored and signed by a Toolio reviewer

What Letter

Snap and translate documents quickly, available in many languages.

Checked 4 Oct 2026 Reviewed by Alex Listed since August 2024

Screenshot of What Letter

At a glance

Starts at $1.99 USD per month Price as published by the vendor, September 2026.
Free tier Yes, limited
Platforms Web
Best for Immigrant families and seniors
Not for Highly technical document translators

4.0 out of 5

Scored by Alex after real use

Our verdict

WhatLetter excels at translating personal and travel-related documents but can struggle with highly technical or formal texts.

✓What it does well

Quick translationsSnap, scan, and get instant insights into any document.
30+ language supportTranslate between over 30 languages, supporting a global audience.
Privacy-focusedDoes not save images or chat history on servers; ensures data security locally.

✕Where it falls short

Limited to three free document translations per monthFree plan only allows up to three documents and chat sessions each month.
Voice typing unavailableNo voice typing or Telegram integration in the current offerings.
Doesn't translate all formal texts wellMay struggle with highly technical, academic, or legal documents that require precise translation.

Key features

Document scanningSnap a photo to scan any document for quick insights.
Chatbot assistanceEngage with an AI chatbot in your preferred language for guided translations and explanations.
No image or chat history storageImages are not saved on servers; chat histories are kept only for reference and privacy.
Mobile browser support onlyCurrently, the service is web-based and works in both desktop and mobile browsers.

Questions about What Letter

What does What Letter do?

What Letter lets users snap a photo of a document and get a quick translation and explanation of it. It translates between over 30 languages, and an AI chatbot answers questions in the user's preferred language. The reviewer finds it strongest with personal and travel-related documents.

Is What Letter free?

What Letter has a limited free plan that allows up to three documents and chat sessions each month. The paid plan starts at $1.99 per month, the price the vendor published in September 2026. The reviewer lists the cap of three free translations per month as one of its main shortcomings.

Who is What Letter for?

Toolio lists What Letter as best for immigrant families and seniors who need help with personal and travel documents. It is not for translators of highly technical documents, since the reviewer finds it may struggle with technical, academic or legal texts that require precise translation.

Does What Letter save document images?

No. The vendor says What Letter does not save document images on its servers, and the reviewer counts its privacy focus among its strengths. Users snap a photo, get the translation and can then ask the chatbot follow-up questions about the document.

Does What Letter have a mobile app?

What Letter is web-based and works in both desktop and mobile browsers, and Toolio lists the web as its only platform. The reviewer notes it has no voice typing or Telegram integration in its current offerings. Alex scored it 4.0 out of 5 after real use on 4 Oct 2026.

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