Comparison

King Focus vs Undertone

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

Head to head
About

King Focus

Features
Read full description

Your brain isn't broken. It's exhausted. Notifications every three minutes. Meetings that interrupt your every thought. Infinite scrolling that trains your brain to distract itself—every single day. Concentration hasn't disappeared: it's been slowly dismantled. King Focus rebuilds it. 10 minutes a day. Measurable progress. --- FOCUS SCORE - YOUR PERSONAL PARAMETER Not an abstract number. The Focus Score reflects concrete capabilities: at 500 points, you can work for 30 minutes without touching your phone. At 800 points, deep work becomes your default state. --- 17 EXERCISES IN 7 COGNITIVE CATEGORIES - Selective and sustained attention - Resistance to internal distractions - Attention span training - Applied mindfulness (not passive meditation) - Physical-cognitive coordination - Creativity and lateral thinking - Speed ​​reading and comprehension Each session: 10 minutes, 1-4 exercises adapted to your level. --- BIOLOGICAL ANALYSIS After 14 sessions, the app shows how sleep, energy level, and time of day influence your score. Identify your cognitive peak. Train when it really matters. --- STREAK AND CONSISTENCY Daily graph of your consistency. Like Duolingo for languages ​​- but for attention span. The most powerful habit of the decade. --- Headspace relaxes you. Lumosity makes you play. King Focus trains you. The difference is measurable: we don't ask you to believe the benefits; we show them to you week after week with your Focus Score. If after 30 days you don't notice a real change in your attention span, we'll refund you—no questions asked. --- - ​​Professionals who feel they can't concentrate - College students in highly distracted environments - Remote workers who want to master deep work - Those who have tried meditation without seeing tangible results --- The first session is free. No registration required. Discover your starting Focus Score in 10 minutes. You are the master of your attention. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Undertone

This app helps individuals in therapy organize and reflect on their sessions. It provides summaries of recorded or uploaded sessions, allows users to save key insights and reminders, and prepares them for future appointments by reviewing past discussions and planned topics. It aims to enhance continuity and retention of therapeutic work between sessions.

Highlights
  • Record or upload session audio
  • Session summaries with key themes
  • Save insights and reminders
  • Organize past sessions
  • Prepare for future appointments
  • Track homework and follow-through
Features
Read full description

Turn therapy sessions into private notes, clear recaps, and meaningful reminders you can revisit between appointments. Undertone is built for people already in therapy. It helps you hold onto what mattered, reflect between sessions, and come back to your next appointment with more continuity. Capture or upload a session, get a clean summary, save what you want to remember, and prepare for what to bring up next time. THERAPY SESSION NOTES  • Record or upload session audio  • Get a clear session summary with key themes, insights, and next steps  • Keep past sessions organized in one place BETWEEN-SESSION REFLECTIONS  • Revisit meaningful Moments from past sessions  • Save thoughts, questions, and topics to bring into therapy  • Keep homework and follow-through items easy to find  • Review what came up without digging through scattered notes PRE-SESSION BRIEFS  • See what you talked about last time  • Review what you planned to work on  • Bring forward important thoughts from the week  • Walk into therapy with more continuity, not a blank slate A CALMER WAY TO STAY CONNECTED TO THERAPY Therapy can move quickly. Important insights, patterns, and next steps are easy to forget once the session ends. Undertone gives you a private space to return to the parts of therapy that matter most, so the work does not disappear between appointments. Undertone is not a therapist, crisis service, or diagnostic tool. It does not provide medical advice or replace professional care. It helps you organize, revisit, and reflect on the care you already receive. Undertone is built using HIPAA-aligned workflows. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://undertone.co/privacy

Screenshots

King Focus4 screens
Undertone4 screens

Verdict

The call

The clearest difference is device support: King Focus at 3 against Undertone's 1. On price, update cadence, ads and in-app purchases 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. King Focus sells 1 in-app purchase, starting at $3.99 per month and Undertone sells 6 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

King Focus ships an update every 9 days, Undertone every 5 days. Both last shipped on October 24, 2026.

Scorecard1 real difference · 9 level
King Focus versus Undertone: the parameters behind the verdict, then further details
ParameterKing FocusUndertone
PriceFreeFree
Rating—4.5 (10 ratings) — better
Positive reviews—75.0% of reviews
Number of ratings—10 — better
Update frequencyEvery 9 daysEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
Monetization—Ad-supported
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.4
Further details — not scored
Size47 MB81 MB
Age rating4+17+
DeveloperZumbat Hub srlMosaic Health Analytics Inc.

In-app purchases

1 purchases

King Focus

Subscriptions1
  • King Focus Monthly Subscription3 Days trial$3.991 Month
6 purchases

Undertone

Subscriptions6
  • Check-in - Monthly Subscription$8.991 Month
  • Ongoing - Monthly Subscription$12.991 Month
  • Momentum - Monthly Subscription1 Month trial$19.991 Month
Show 3 more
  • Check-in - Yearly Subscription1 Month trial$69.991 Year
  • Ongoing - Yearly Subscription1 Month trial$99.991 Year
  • Momentum - Yearly Subscription1 Month trial$134.991 Year

Questions

Is King Focus free?
King Focus is free to download, with in-app purchases available.
Is Undertone free?
Undertone is free to download, with in-app purchases available.
Do King Focus or Undertone have ads?
Neither King Focus nor Undertone shows ads.
Which is updated more often, King Focus or Undertone?
King Focus ships an update every 9 days, and Undertone every 5 days. Most recently, King Focus was updated on October 24, 2026 and Undertone on October 24, 2026.

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