# Deep Focus Noise Machine vs Sift Text Diff

The clearest difference is review sentiment: Deep Focus Noise Machine at 100% against Sift Text Diff's 0%. Deep Focus Noise Machine also leads on rating (4.8 vs 2.0) and ratings volume (23 vs 1). Sift Text Diff's advantage is in-app purchases (none vs 4). On price, ads and iOS requirement 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. Sift Text Diff asks for nothing beyond the download.

Deep Focus Noise Machine holds the better App Store score, 4.8 against 2.0. That said, the two scores are not equally well evidenced: Deep Focus Noise Machine has 23 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Deep Focus Noise Machine's written reviews are positive against 0% of Sift Text Diff's.

## The numbers

| Metric | Deep Focus Noise Machine | Sift Text Diff |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (23 ratings)](https://appshunter.io/ios/app/deep-focus-noise-machine-dpli/id6760627418/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/sift-text-diff/id6771259815/reviews) |
| Number of ratings | **23** | 1 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | — |
| Monetization | Free with in-app purchases | **Free** |
| Size | 13 MB | 0 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Lukasz Solniczek](https://appshunter.io/developer/1032070216) | [Linh Phan Nhat Khanh](https://appshunter.io/developer/1777727575) |

## 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 |


### Sift Text Diff

[App page](https://appshunter.io/ios/app/sift-text-diff/id6771259815)

Compare two versions of any text side-by-side to quickly identify added, removed, or modified lines. Features include inline viewing, word-level highlighting, and options to ignore whitespace or case. Save comparisons locally for easy recall.

**Highlights:** Side-by-side diff with color coding, Inline diff view, Word-level highlighting, Ignore whitespace and case, Local archive for saved comparisons, Quick input swapping

**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 Sift Text Diff free?

Sift Text Diff is free to download, with no in-app purchases.

### Which has better reviews, Deep Focus Noise Machine or Sift Text Diff?

Deep Focus Noise Machine is rated higher. Deep Focus Noise Machine averages 4.8 out of 5 from 23 ratings, while Sift Text Diff averages 2.0 from 1 ratings.

### Do Deep Focus Noise Machine or Sift Text Diff have ads?

Neither Deep Focus Noise Machine nor Sift Text Diff shows ads.

---

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