Comparison

Deep Focus Noise Machine vs Sift Text Diff

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Deep Focus Noise Machine

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
Read full description

dpli creates real-time, evolving spatial soundscapes for ADHD focus and deep work — generated live on your device, never played from a loop. Unlike standard noise apps that replay prerecorded tracks, dpli synthesizes every layer in real time. Sound sources can move through space, shift in intensity, and modulate independently, creating an immersive background that stays dynamic throughout your session. BUILT FOR FOCUS Choose a preset based on what you need: • SHIELD — A steady spatial soundscape designed to mask conversations, office noise, and sudden distractions. • FLOW — Moving, asymmetric layers that create an engaging background for writing, coding, studying, and deep work. • CLARITY — Steady, precisely layered noise that masks distractions and creates a clear background for writing, coding, studying, and deep work. • IGNITION — Designed for ADHD brains or anyone needing a strong push into active focus. An energizing white-noise field with dual-rhythm pulses and airy blue-noise sparkle that drives alertness and mental speed. • RELAX — A heavy brown-noise blanket with two pink streams drifting slowly around your head — eases you into deep physical relaxation while staying awake. Good for winding down, tension release, or a mid-day relax. • RESET — A still, dark cocoon with a slow warm breath that gently sways around you — shifts the mind from stress into rest. Best for 10–20 minute breaks when you feel wound up or anxious. MORE THAN COLORED NOISE Brown, pink and white noise generators are included for free. They are also the building blocks behind dpli’s layered presets, where position, movement, modulation, and frequency balance work together to create a richer listening environment. GENERATED, NOT STREAMED • No prerecorded audio files • No repeating MP3 loops • Real-time synthesis on your device • Spatial movement and independent modulation • Works offline with no account required PRIVATE BY DESIGN Your sessions stay on your device. dpli does not stream audio, require an account, or collect listening data. MADE FOR THE APPLE ECOSYSTEM Use dpli on iPhone, Mac, and Apple Watch. Start a session wherever you work, study, travel, or need a more controlled acoustic environment. dpli is a focus and sound-masking tool. It is not intended to diagnose, treat, or cure ADHD or any other medical condition. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Sift Text Diff

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
Read full description

Sift is a fast, focused text diff tool for writers, editors, and developers. Paste two versions of any text — drafts, code, contracts, emails, JSON — and Sift highlights every added, removed, and modified line in a clean side-by-side view. No accounts, no clutter, no upload to the cloud. KEY FEATURES • Side-by-side diff with line numbers and clear rose/sage color coding • Inline diff view that shows +/- changes in a single column • Word-level highlighting on modified lines so subtle edits stand out • Ignore whitespace and ignore case toggles for noise-free comparisons • Save useful comparisons to the local archive and recall them in one tap • Quick swap between LEFT and RIGHT inputs • One-tap clipboard paste into either editor BUILT FOR REAL WORK Whether you are reviewing a contract redline, checking a code refactor, comparing JSON payloads, or auditing a copy edit, Sift keeps the differences in front of you and the noise out of the way. PRIVACY No accounts. No tracking. No network calls. All saved comparisons stay on your device.

Screenshots

Deep Focus Noise Machine4 screens
Sift Text Diff3 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

Scorecard6 real differences · 4 level
Deep Focus Noise Machine versus Sift Text Diff: the parameters behind the verdict, then further details
ParameterDeep Focus Noise MachineSift Text Diff
PriceFreeFree
Rating4.8 (23 ratings) — better2.0 (1 ratings)
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings23 — better1
Update frequencyWeekly—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Mac — betteriPhone
Requires iOS17.617.0 — better
Further details — not scored
Size13 MB0 MB
Age rating4+4+
DeveloperLukasz SolniczekLinh Phan Nhat Khanh

Customer experience

Deep Focus Noise Machine

All ratings23 ratings
Positive95.7%
Neutral0.0%
Negative4.3%
Written reviews17 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Sift Text Diff

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

4 purchases

Deep Focus Noise Machine

Subscriptions3
  • Dpli Monthly$0.991 Month
  • Dpli weekly$0.997 Days
  • Dpli Yearly3 Days trial$12.991 Year
One-time1
  • Dpli lifetime access$12.99
None

Sift Text Diff

No in-app purchases

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.

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