# Smile Link vs FlowNoise

The clearest difference is in-app purchases: Smile Link at none against FlowNoise's 1. Smile Link also leads on ratings volume (23 vs 4). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. FlowNoise sells 1 one-off in-app purchase. Smile Link asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Smile Link against 5.0 for FlowNoise. That said, the two scores are not equally well evidenced: Smile Link has 23 ratings behind it against 4, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Smile Link ships an update fortnightly, FlowNoise weekly. The most recent releases landed on October 10, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Smile Link | FlowNoise |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (23 ratings)](https://appshunter.io/ios/app/smile-link/id1645696642/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/flownoise/id6447097312/reviews) |
| Number of ratings | **23** | 4 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 42 MB | 8 MB |
| Requires iOS | 14.0 | **13.2** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [https://smilelink.app](https://appshunter.io/developer/1745788194) | [Fritz Menzer](https://appshunter.io/developer/512896637) |

## What reviewers say

### Smile Link

[App page](https://appshunter.io/ios/app/smile-link/id1645696642)

Easily schedule dental appointments and communicate securely with your dentist through in-app messaging. Receive automated reminders to stay on track with your oral health. Take control of your dental care with a user-friendly experience.

**Highlights:** Book dental appointments, Secure in-app messaging, Automated appointment reminders, View treatment plans, Post-care instructions, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases:** none


### FlowNoise

[App page](https://appshunter.io/ios/app/flownoise/id6447097312)

Enhance focus, relaxation, and performance with binaural beats that integrate with your music. Customize sound parameters like noise color, frequency, and modulation for a personalized auditory experience.

**Highlights:** Binaural beats integration with music, Customizable noise color, Adjustable waveform modulation, Selectable base frequencies (e.g., 432 Hz), In-app purchase for Pro Features, Timer functionality

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Features | $1.99 | one-time |


## Frequently asked questions

### Is Smile Link free?

Smile Link is free to download, with no in-app purchases.

### Is FlowNoise free?

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

### Which has better reviews, Smile Link or FlowNoise?

Smile Link and FlowNoise are both rated 5.0 out of 5 on the App Store, from 23 and 4 ratings respectively.

### Do Smile Link or FlowNoise have ads?

Neither Smile Link nor FlowNoise shows ads.

### Which is updated more often, Smile Link or FlowNoise?

Smile Link ships an update fortnightly, and FlowNoise weekly. Most recently, Smile Link was updated on October 10, 2026 and FlowNoise on October 5, 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.*