# Deep Focus Noise Machine vs Tag Keep

The clearest difference is in-app purchases: Tag Keep at none against Deep Focus Noise Machine's 4. Tag Keep also leads on update cadence (daily vs weekly) and rating (5.0 vs 4.7). Deep Focus Noise Machine's advantage is ratings volume (26 vs 2). On price, review sentiment, ads and monetization model there is nothing between them.

Both are free to download. Deep Focus Noise Machine sells 4 in-app purchases, starting at $0.99 per month. Tag Keep asks for nothing beyond the download.

Tag Keep holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Deep Focus Noise Machine has 26 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Deep Focus Noise Machine ships an update weekly, Tag Keep daily. Both last shipped on October 24, 2026.

## The numbers

| Metric | Deep Focus Noise Machine | Tag Keep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (26 ratings)](https://appshunter.io/ios/app/deep-focus-noise-machine-dpli/id6760627418/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/tag-keep/id6802800669/reviews)** |
| Number of ratings | **26** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Daily** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 13 MB | 8 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Lukasz Solniczek](https://appshunter.io/developer/1032070216) | [Anurag Gawande](https://appshunter.io/developer/1844449393) |

## What reviewers say

### Deep Focus Noise Machine

[App page](https://appshunter.io/ios/app/deep-focus-noise-machine-dpli/id6760627418)

This app generates unique, real-time audio soundscapes designed to prevent neural adaptation and enhance focus for neurodivergent individuals. It offers various noise colors and neurally-validated presets to create a spatial shield against distractions, all while operating 100% offline.

**Highlights:** Real-time generative audio, no loops, Spatial shielding with HRTF, Neurally-validated presets, Brown, pink, speech-shaped, and white noise, 100% offline functionality, Privacy-first, zero data tracking, Battery efficient native synthesis

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dpli Monthly | $0.99 | per month |
| Dpli weekly | $0.99 | per 7 days |
| Dpli Yearly | $12.99 | per year |
| Dpli lifetime access | $12.99 | one-time |


### Tag Keep

[App page](https://appshunter.io/ios/app/tag-keep/id6802800669)

This app helps you save, organize, and find any information with a flexible tagging system. It supports notes, bookmarks, dates, reminders, and account details, with an option to protect sensitive items. An optional one-time purchase unlocks advanced features like iCloud sync and custom lists.

**Highlights:** Save notes, bookmarks, dates, and account info, Organize with custom tags, Set reminders and view in calendar, Create Smart Lists for related items, Protect sensitive items with Face ID/Touch ID, Attach photos to saved items, Powerful search functionality

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Deep Focus Noise Machine free?

Deep Focus Noise Machine is free to download, with in-app purchases available.

### Is Tag Keep free?

Tag Keep is free to download, with no in-app purchases.

### Which has better reviews, Deep Focus Noise Machine or Tag Keep?

Tag Keep is rated higher. Deep Focus Noise Machine averages 4.7 out of 5 from 26 ratings, while Tag Keep averages 5.0 from 2 ratings.

### Do Deep Focus Noise Machine or Tag Keep have ads?

Neither Deep Focus Noise Machine nor Tag Keep shows ads.

### Which is updated more often, Deep Focus Noise Machine or Tag Keep?

Deep Focus Noise Machine ships an update weekly, and Tag Keep daily. Most recently, Deep Focus Noise Machine was updated on October 24, 2026 and Tag Keep on October 24, 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.*