# Muse Fit vs Letterly

The clearest difference is review sentiment: Letterly at 78% against Muse Fit's 35%. Letterly also leads on ratings volume (1.1K vs 7) and rating (4.7 vs 4.4). Muse Fit's advantage is in-app purchases (none vs 9). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. Letterly sells 9 in-app purchases, starting at $19.99 per month. Muse Fit asks for nothing beyond the download.

Letterly holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: Letterly has 1.1K ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 35% of Muse Fit's written reviews are positive against 78% of Letterly's.

Muse Fit ships an update every 2 weeks, Letterly every 10 days. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Muse Fit | Letterly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (7 ratings)](https://appshunter.io/ios/app/muse-fit/id6443615980/reviews) | **[4.7 (1.1K ratings)](https://appshunter.io/ios/app/letterly-ai-note-taker/id6464049772/reviews)** |
| Number of ratings | 7 | **1.1K** |
| Positive reviews | 35.0% of reviews | **78.1% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 10 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 100 MB | 95 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [Conzumex Industries Pvt Ltd](https://appshunter.io/developer/1426354638) | [Anton Lebedev](https://appshunter.io/developer/1763234652) |

## What reviewers say

### Muse Fit

[App page](https://appshunter.io/ios/app/muse-fit/id6443615980)

Track your fitness, sleep, glucose levels, and mindfulness with smart wearables. Get personalized insights and actionable tips to achieve your wellness goals. Seamlessly sync data from your Muse Hybrid Watch, GTag, and Ring One for a comprehensive health overview.

**Highlights:** Activity tracking with step goals, Sleep quality monitoring, Real-time glucose insights, Strain and stress monitoring, Mindfulness and relaxation tracking, Smart notifications and customizable controls

**Features:** Apple Wallet, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 User-friendly app interface
- 💡 Impressive health tracking insights
- 🌟 Outstanding customer support
- 🚀 Seamless syncing with devices
- ✨ Comfortable to wear daily

**What reviewers complain about**

- 🐛 Won't download OTP
- 🐛 Bugs and growing pains
- 🐛 Ring doesn't work
- 🐛 Not recording workouts or sleep data
- 🐛 Won't charge

**Reported bugs**

- Won't download OTP
- Ring not recording workouts or sleep data
- Ring won't charge
- New update ruined connectivity
- Not recognizing ring

**Requested features**

- Strava connectivity for running and cycling
- Ability to love sections around to customize layout
- Display ring battery health on the main screen
- Include warnings on battery life well before 20%
- Enable Spo2 and BP features


### Letterly

[App page](https://appshunter.io/ios/app/letterly-ai-note-taker/id6464049772)

Instantly transform your speech into polished text for notes, messages, social media, and more. Organize with custom tags, use offline, and choose from over 25 rewrite styles. Supports over 90 languages and syncs across all your devices.

**Highlights:** Speech to text transcription, Customizable text rewriting, Note organization with tags, Offline recording, Multi-language support, Cross-device syncing, Audio file upload transcription

**Features:** Apple Watch app

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Subscription (1 month) | $19.99 | per month |
| PRO Subscription (3 months) | $44.90 | per 3 months |
| PRO Subscription (1 Year) | $69.99 | per year |
| PRO Subscription (1 Year) | $79.99 | per year |
| PRO Subscription (1 Year) | $89.99 | per year |
| PRO Subscription (12 months) | $99.99 | per year |
| PRO Subscription (12 months) | $99.99 | per year |
| PRO Subscription (Lifetime) | $199.99 | one-time |
| PRO Subscription (Lifetime) | $249.99 | one-time |

**What reviewers like**

- 🚀 Quick, easy, and consistent
- 👍 Fantastic application
- 👍 Game-changing app
- 👍 Admissions
- 👍 My go-to app

**What reviewers complain about**

- 🐛 Hopeless info and double charged
- 🐛 A scam
- 🐛 Big Promise, Big Fizzle
- 🐛 NO! NO! NO!
- 🐛 Formatting

**Reported bugs**

- Login screen freezes
- Incompatible with older devices
- When I get phone calls, I lose the entire recording

**Requested features**

- Dark mode option
- Advanced analytics dashboard
- Ability to use the artificial intelligence to search through all of my old notes for similar topics or keywords


## Frequently asked questions

### Is Muse Fit free?

Muse Fit is free to download, with no in-app purchases.

### Is Letterly free?

Letterly is free to download, with in-app purchases available.

### Which has better reviews, Muse Fit or Letterly?

Letterly is rated higher. Muse Fit averages 4.4 out of 5 from 7 ratings, while Letterly averages 4.7 from 1.1K ratings.

### Do Muse Fit or Letterly have ads?

Neither Muse Fit nor Letterly shows ads.

### Which is updated more often, Muse Fit or Letterly?

Muse Fit ships an update every 2 weeks, and Letterly every 10 days. Most recently, Muse Fit was updated on November 3, 2026 and Letterly on November 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*