Comparison

Deep Focus Noise Machine vs Tag Keep

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. SESSIONS — YOUR RHYTHM OF WORK AND REST Build your own sound sequence on iPhone or Mac. Choose a sound and duration for each stage — FLOW for focused work, then RELAX for a break, for example. dpli blends smoothly between stages and gently fades out at the end. Start with one stage using a free sound. Premium unlocks additional stages and the full preset collection. 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

Tag Keep

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
Read full description

Tag Keep is a simple and flexible way to save, organize, and find the information that matters to you. Save notes, bookmarks, important dates, reminders, account information, home details, and more — then organize everything with tags so it's easy to find later. SAVE ANYTHING Keep useful information together in one place. Add a title, details, tags, dates, reminders, and photos to your saved items. ORGANIZE WITH TAGS Add multiple tags to each item and quickly find what you're looking for. Customize your organization around the way you think and work. CALENDAR & REMINDERS Add dates to important items and see them in the built-in calendar. Set reminders for birthdays, renewals, appointments, expirations, and anything else you don't want to forget. SMART LISTS Automatically bring related information together with Smart Lists. Tag Keep helps you quickly access birthdays, favorites, upcoming items, secure items, and more. KEEP SENSITIVE ITEMS PRIVATE Protect Secure Items using Face ID or Touch ID for an additional layer of privacy. PHOTOS & SHARING Attach photos to saved items and share information with other apps using the standard iOS Share Sheet. POWERFUL SEARCH Find saved information quickly using titles, details, and tags. TAG KEEP PRO Upgrade with a one-time purchase to unlock additional features including: • iCloud sync • Custom Smart Lists • Custom tag colors and icons • Advanced backup and restore • Export options • Home Screen widgets • Additional photo attachments ONE PURCHASE. NO SUBSCRIPTION. NO ADS. Tag Keep Pro is available as a one-time in-app purchase. From something you need today to something you'll need months from now, Tag Keep gives you one organized place to save it, tag it, and find it again.

Screenshots

Deep Focus Noise Machine4 screens
Tag Keep4 screens

Verdict

The call

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.

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. Tag Keep asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard4 real differences · 6 level
Deep Focus Noise Machine versus Tag Keep: the parameters behind the verdict, then further details
ParameterDeep Focus Noise MachineTag Keep
PriceFreeFree
Rating4.7 (26 ratings)5.0 (2 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings26 — better2
Update frequencyWeeklyDaily — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.6 — better18.0
Further details — not scored
Size13 MB8 MB
Age rating4+4+
DeveloperLukasz SolniczekAnurag Gawande

Customer experience

Deep Focus Noise Machine

All ratings25 ratings
Positive96.0%
Neutral0.0%
Negative4.0%
Written reviews18 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Tag Keep

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

Tag Keep

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 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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