Comparison

Demon Time vs 10,000 Hours Timer

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

Head to head
About

Demon Time

Features
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Every hour you grind feeds your demon. Demon Time is a focus timer that transforms your practice hours into a dark, addictive progression system. Track time on any skill or project, watch your demon evolve through 8 ranks โ€” from a tiny Ember to a fearsome Demon Lord โ€” and maintain your Possession Chain to prove you're built different. Inspired by the 10,000 hour rule, Demon Time makes the long grind feel rewarding from day one. Each session is a Ritual. Each project is a Demon you're raising. Skip a day and your demon starts rusting. Neglect it for a month and it begins to starve. But show up consistently? Your demon evolves, your rank ascends, and you earn Souls to customize your experience. SUMMONING CIRCLE TIMER Start The Ritual and watch the summoning circle track your session with rotating runes, glowing progress arcs, and floating ember particles. This isn't a boring countdown โ€” it's a ceremony. 8 DEMON RANKS Evolve from Ember (0h) to Demon Lord (10,000h). Each rank transforms your demon's visual form โ€” growing horns, wings, orbiting runes, and reality-warping effects as you ascend. LIVING DEMON MASCOTS Your demon lives inside the summoning circle. It thrives when you grind, dims when you slack, rusts when you disappear, and starves if you abandon it. Feed it or watch it die. POSSESSION CHAINS Maintain your streak by logging at least one session every day. Watch your chain grow from Sparked (3 days) to Immortal (365 days). Break it and feel the pain. SCROLLS (INSIGHTS) Discover when you're most productive, which sessions hit flow state, and how your hours compare week over week. Data presented as ancient wisdom from the underworld. RELICS (ACHIEVEMENTS) Unlock 30+ achievements โ€” from First Blood (1 hour) to Dawn Breaker (session that starts before midnight and ends after 5am). Each relic earns Souls. SOUL ECONOMY Earn Souls through grinding and spend them on cosmetic upgrades โ€” summoning circle skins, timer animations, ambient soundscapes, and profile flair. TRUE DEMON TIME Sessions between 12am and 5am earn bonus Souls and a special visual mode. The app knows when you're on demon time. Built for developers, musicians, artists, writers, students, and anyone tracking their 10,000-hour journey. Dark mode only. No ads in the free tier. Your grind deserves better than a pastel timer. Feed your demons. Keywords : focus,timer,productivity,hours,tracker,10000,pomodoro,streak,grind,study,practice,skill,habit,dark

About

10,000 Hours Timer

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10,000 Hours is a simple timer for tracking the time you devote to your goals. Start a stopwatch or countdown, then tap the checkmark when you finish. Each session is saved in your on-device history, where you can add, edit, or delete entries later. One goal is free with unlimited time and history. A one-time purchase unlocks up to five goals, each with separate time and history. Purchases can be restored from Settings or the purchase screen. Features โ€ข Stopwatch and countdown timer โ€ข Start, pause, resume, and save sessions โ€ข Total time and visual progress toward 10,000 hours โ€ข View, add, edit, and delete history entries โ€ข Direct numeric time entry โ€ข Manage up to five goals with one purchase โ€ข View your active timer on the Lock Screen and Dynamic Island โ€ข Optional local notification when a countdown ends โ€ข Restoration after backgrounding or relaunching the app No account is required. Goal names, recorded time, history, and settings stay on this iPhone. There is no advertising or advertising tracking. Apple and RevenueCat are used for purchase validation, restoration and revenue analytics. Goal names and practice history are not sent to RevenueCat. Restoring a purchase restores access only; it does not sync on-device goals or history. 10,000 hours does not guarantee success. But you can keep a record of the time you put in today. Start with your first minute.

Screenshots

Demon Time4 screens
10,000 Hours Timer4 screens

Verdict

The call

The clearest difference is device support: Demon Time at 4 against 10,000 Hours Timer's 1. On price, ads, in-app purchases and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference ยท 5 level
Demon Time versus 10,000 Hours Timer: the parameters behind the verdict, then further details
ParameterDemon Time10,000 Hours Timer
PriceFreeFree
Update frequencyโ€”Every 2 weeks
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, Apple Watch, Vision Pro โ€” betteriPhone
Requires iOS17.617.0 โ€” better
Further details โ€” not scored
Size18 MB8 MB
Age rating17+4+
DeveloperSahil ChaddhaNatsukiktst Sato

In-app purchases

None

Demon Time

No in-app purchases

None

10,000 Hours Timer

No in-app purchases

Questions

Is Demon Time free?
Demon Time is free to download, with no in-app purchases.
Is 10,000 Hours Timer free?
10,000 Hours Timer is free to download, with no in-app purchases.
Do Demon Time or 10,000 Hours Timer have ads?
Neither Demon Time nor 10,000 Hours Timer shows ads.

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