Letterly
Turn your speech into well-written text
R2 Copilot
R2 Copilot — The First-Ever Privacy-Conscious AI Assistant
Updated February 2026
| Letterly | R2 Copilot | |
|---|---|---|
| Rating | 4.8★ | 5.0★ |
| Reviews | 8 | 18 |
| Pros | 9 | 15 |
| FactScore™ | 45.3 | 63.9 |
FactScore™ Comparison
FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.
Pros & Cons
Only in Letterly — Pros
Speech to text Time saving User friendly Custom prompts Developer communication Device synchronization Simple design Voice recognitionBoth tools — Pros
Fast performanceOnly in R2 Copilot — Pros
Privacy features Security measures User-friendly interface Accurate responses Microsoft Office integration Complex query understanding Data control Data retention management Encryption End-to-end encryption Personalized recommendations Privacy policy Secure data handling TransparencyOnly in Letterly — Cons
Advanced formatting Buggy Desktop app Team collaborationBoth tools — Cons
—Only in R2 Copilot — Cons
—Details
| Letterly | R2 Copilot | |
|---|---|---|
| Categories | Writing assistants, Text-to-Speech Software | Writing assistants, Prompt Engineering Tools |
| Platforms | Web · iOS · Android | Web |
| Became Popular | January 27, 2024 | January 30, 2024 |
| Website | letterly.app | r2copilot.ai |
Who Should Pick Which?
Choose Letterly if...
- Speech to text
- Time saving
- User friendly
Choose R2 Copilot if...
- Privacy features
- Security measures
- User-friendly interface
With a FactScore™ of 45.3 vs 63.9, R2 Copilot leads in community reception. Letterly uniquely offers Speech to text and Time saving, while R2 Copilot stands out for Privacy features and Security measures.
What Users Say
Letterly
Letterly now became my number 1 app for long messages. It’s quick and it makes easy-to-read messages
Letterly is probably my favourite app of all time. It makes my life so much easier because I can just say what I want to say and no matter how many umms and ahhs I mumble while talking, it will rem...
This app has transformed my daily work life for the better! Whenever I have an idea, I simply open Letterly, speak for a bit, and the app rearranges everything to make it clearer. Thanks to the lat...
R2 Copilot
With data breaches and privacy concerns on the rise, finding a trustworthy AI assistant has become a challenge. R2 Copilot has proven to be the best private GPT I've tried, offering the dual benefi...
R2 Copilot is a true miracle of technology! This tool has made my daily work much easier and helped me save a lot of time. The user interface is intuitive, allowing you to quickly get started witho...
Related Comparisons
Frequently Asked Questions
Which is better, Letterly or R2 Copilot?
Based on FactScore™, R2 Copilot leads with a score of 63.9 vs 45.3. R2 Copilot has a higher rating of 5.0★ compared to 4.8★.
What are the pros of Letterly compared to R2 Copilot?
Letterly uniquely offers: Speech to text, Time saving, User friendly, Custom prompts, Developer communication.
What are the pros of R2 Copilot compared to Letterly?
R2 Copilot uniquely offers: Privacy features, Security measures, User-friendly interface, Accurate responses, Microsoft Office integration.
Is Letterly better rated than R2 Copilot?
Letterly is rated 4.8★ from 8 reviews. R2 Copilot is rated 5.0★ from 18 reviews.
What is the FactScore™ of Letterly and R2 Copilot?
FactScore™ weighs rating and review volume together. Letterly scores 45.3 and R2 Copilot scores 63.9.
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