Comparison

FocusCheck vs Dayhack

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

Head to head
About

FocusCheck

Features
Read full description

Get your Focus Score in 2 minutes. Then sharpen it every day with 25 science-backed actions. See exactly what's killing your attention โ€” and what's protecting it. YOUR FOCUS SCORE Take a 14-question baseline assessment to see where your attention stands compared to your age group. The score (0โ€“100) is built on six factors backed by peer-reviewed sleep, exercise, stress, nutrition, digital-hygiene, and stimulant research. 25 DAILY ACTIONS โ€” ALL FREE Sleep, training, nutrition, supplements, and lifestyle. Every action is sourced to PubMed studies with an honest effect size. Check off what you did today and watch your Focus Score climb in real time. THE COMPOUND EFFECT Your baseline doesn't change overnight. But consistent daily actions compound. Our exponential smoothing algorithm shows exactly how your habits move your baseline over 14, 28, and 90 days. FOCUS KILLERS โ€” WHAT'S SABOTAGING YOU Sleep deprivation, chronic stress, phone-first mornings, ultra-processed food, heavy media multitasking. Some habits silently shred your sustained attention. See the full damage with real percentages from clinical studies. MYTH BUSTERS Lumosity won't make you smarter. Sugar doesn't make kids hyper. Blue-light glasses are mostly hype. Every popular focus myth debunked with the actual studies โ€” including the ones with mixed evidence we won't pretend are settled. NOT A DIAGNOSIS FocusCheck is not a clinical ADHD test. It's a self-assessment to help you spot the lifestyle levers that move attention. Only a qualified clinician can diagnose ADHD. PREMIUM โ€” PAY ONCE. KEEP FOREVER. One purchase unlocks Focus Killers, Myth Busters, baseline trend chart, 28-day heatmap, weekly analytics, and biggest impact tracking. No subscriptions. No recurring charges. Dark, minimal, science-first design. Built for people who want real answers โ€” not productivity-influencer hype.

About

Dayhack

Features
Read full description

Dayhack is a biohacking journal: a food diary without calories, a sleep journal and a workout log in one app. Write down what you eat, how you trained, how you slept and the urges you held, then see what you actually did this week and choose your next step. In English, French, Spanish, German, Italian and Portuguese. FOOD DIARY WITHOUT CALORIES Log meals with foods, quantities, portions and how you feel. Dayhack does not estimate calories and does not give you a health score. If you prefer mindful or intuitive eating to counting, your meal history simply shows your own entries. SLEEP JOURNAL AND MORNING ENERGY Record bedtime, wake time, sleep quality and energy. The sleep diary uses the times and feelings you enter. It does not measure sleep stages. WORKOUT LOG Prepare strength or cardio sessions and record exercises, sets, reps, loads and durations. An unfinished workout stays at the top of Today. Look back at your training history before the next session. URGE AND CRAVING TRACKER Choose what you want more control over, such as screen time, nicotine, alcohol or gambling. Note your triggers, pick an alternative and reflect on what helped. A pause or a lapse does not erase earlier progress. FOUR TABS, ONE ROUTINE Today, Meals, Training and Recovery, where sleep and urges sit side by side. Focus and reflection tools sit alongside them, and reminders are optional. YOUR WEEK IN REVIEW The free seven-day review brings together meal entries, completed workouts, best recorded sets, sleep and craving ratings. Dayhack Plus unlocks 30-day, 90-day and 365-day reviews and a readable text export. Choose a monthly or yearly subscription, or a one-time lifetime purchase. Subscriptions renew automatically until you cancel in your store account settings, at least 24 hours before renewal. Core features and standard data export stay free. YOUR DATA Your journal entries are stored on your device. No account and no sign-up. You choose what to export or share. IMPORTANT Dayhack is not a medical device and does not diagnose, treat, cure or prevent any condition. It does not treat addiction or provide withdrawal protocols. Stopping alcohol or sedatives suddenly can be dangerous, so seek medical advice before changing your use. For health concerns, talk to a healthcare professional. Terms of Use: https://victorlaybats.com/apps/elyro/terms/ Privacy Policy: https://victorlaybats.com/apps/elyro/privacy/

Screenshots

FocusCheck4 screens
Dayhack4 screens

Verdict

The call

The clearest difference is update cadence: Dayhack at every 4 days against FocusCheck's monthly. Dayhack also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.0). On price, ads and in-app purchases there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. FocusCheck sells 1 one-off in-app purchase and Dayhack sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

FocusCheck ships an update monthly, Dayhack every 4 days. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

Scorecard3 real differences ยท 3 level
FocusCheck versus Dayhack: the parameters behind the verdict, then further details
ParameterFocusCheckDayhack
PriceFreeFree
Update frequencyMonthlyEvery 4 days โ€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone, iPad, iPod โ€” better
Requires iOS18.013.0 โ€” better
Further details โ€” not scored
Size10 MB53 MB
Age rating9+12+
DeveloperMartin CondetVictor Laybats

In-app purchases

1 purchases

FocusCheck

One-time1
  • FocusCheck Premium$5.49
3 purchases

Dayhack

Subscriptions2
  • Takehold Plus monthly$4.991 Month
  • Takehold Plus yearly7 Days trial$29.991 Year
One-time1
  • Takehold Plus$59.99

Questions

Is FocusCheck free?
FocusCheck is free to download, with in-app purchases available.
Is Dayhack free?
Dayhack is free to download, with in-app purchases available.
Do FocusCheck or Dayhack have ads?
Neither FocusCheck nor Dayhack shows ads.
Which is updated more often, FocusCheck or Dayhack?
FocusCheck ships an update monthly, and Dayhack every 4 days. Most recently, FocusCheck was updated on November 6, 2026 and Dayhack on October 31, 2026.

Other comparisons