Comparison

StarTimer vs Mastery

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

Head to head
About

StarTimer

This app helps you manage your time with smart scheduling and customizable timers. It offers real-time progress tracking, voice control, and a beautiful, privacy-focused design. Perfect for daily routines, focus sessions, and workouts.

Highlights
  • Smart scheduling with reminders
  • Recurring schedules for routines
  • Live Activities for real-time progress
  • Dynamic Island integration
  • Customizable icons and color themes
  • Siri Shortcuts for voice control
  • Privacy-focused, no data collection
Features
Read full description

Transform your productivity with StarTimer - the most beautiful and intuitive timer app for iOS. SMART SCHEDULING & REMINDERS Never forget to start important activities again. Schedule reminders to start your timers at specific times - perfect for daily meditation at 7 AM, workout sessions at 6 PM, or focus blocks throughout your workday. Set one-time or recurring schedules that fit your routine perfectly. LIVE ACTIVITIES & DYNAMIC ISLAND Watch your timer progress in real-time without opening the app. StarTimer's Live Activities appear in your Dynamic Island and Lock Screen, keeping you informed at a glance. EXPRESS YOUR STYLE Choose from 20 beautiful icons and 13 stunning color themes. From meditation bells to cooking timers, find the perfect visual match for every activity. "HEY SIRI, START MY TIMER" Voice control makes timing effortless. Create custom Siri Shortcuts for your most-used timers and start them hands-free. FEATURES YOU'LL LOVE * Smart scheduling: Set reminders to start timers at specific times * Recurring schedules: Daily meditation, weekly workouts, custom routines * Live Activities for real-time progress tracking * Dynamic Island integration on supported devices * 20 beautiful icons: meditation, cooking, workout, study, and more * 13 stunning color themes to match your style * Siri Shortcuts for voice-activated timing * Haptic feedback for satisfying interactions * Premium design that feels native to iOS PERFECT FOR * Daily meditation reminders at your preferred time * Scheduled Pomodoro sessions throughout your workday * Cooking timer reminders for meal prep schedules * Workout interval scheduling for consistent fitness routines * Study session reminders to maintain learning habits * Meeting prep timers and scheduled break reminders PRIVACY FOCUSED Your timer data stays on your device. No accounts, no tracking, no data collection. Just beautiful, private timing that respects your privacy. Whether you need a daily reminder to start your 2-minute meditation, a scheduled 25-minute focus session, or automated workout timer prompts, StarTimer transforms time management into a beautiful, effortless experience. Download StarTimer today and never miss another important activity with smart scheduling and elegant design.

About

Mastery

Features
Read full description

Mastery — Stop feeding distractions. Start building power. Most people don’t have a time problem. They have a standards problem. You say you want discipline, then hand your day to social apps, random scrolling, and mood-based decisions. Mastery is built to end that cycle. Mastery turns your habits and skills into a score-driven progression system with real consequences, real momentum, and real proof that you’re changing. The killer feature: Non-Negotiable Mode This is where Mastery separates itself from soft productivity apps. Set a habit as non-negotiable, choose distracting apps, and those apps stay locked until you complete the habit. No fake “nudges.” No gentle reminders. If the work isn’t done, the distractions stay closed. You can configure it your way: • Set global blocked apps for your full discipline system • Add extra blocked apps to specific habits • Choose active weekdays • Run all-day locks or custom time windows If you keep breaking promises to yourself, this is the feature that stops the bleed. Free vs Premium The free version of Mastery allows tracking up to 3 habits or skills. With a Mastery subscription, you can unlock unlimited habit and skill tracking, allowing you to build a complete discipline system around everything that matters to you. What you get with Mastery • Habit + skill tracking in one clean system • Daily completions with clear limits and progress states • Mastery Points for actions that move your life forward • Leveling system and chapter progression (100 completions per chapter) • Mission system that rewards consistency and challenge milestones • Daily check-ins for momentum • Journaling for reflection and self-accountability • Full journey timeline of completions, check-ins, missions, and level-ups • Reminder system with scheduling options • Home screen widget support • Deep links for fast access to specific habits How it works 1. Create your habits and skills. 2. Mark the most important ones as non-negotiable. 3. Block your biggest distractions. 4. Execute daily, earn points, level up, repeat. Simple structure. High standards. No excuses. Who Mastery is for • People tired of “starting over on Monday” • Builders, athletes, creators, students, operators • Anyone ready to trade comfort for progress If you want another cute habit tracker, this isn’t it. If you want a system that pushes you to keep promises to yourself, welcome to Mastery. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

StarTimer4 screens
Mastery4 screens

Verdict

The call

The clearest difference is price: Mastery at Free against StarTimer's $2.99. StarTimer's advantage is in-app purchases (none vs 3) and update cadence (every 3 days vs every 2 weeks). On ads and device support 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

Mastery is free to download; StarTimer costs $2.99 up front. Mastery sells 3 in-app purchases, starting at $2.99 per month. StarTimer asks for nothing beyond the download.

UpkeepUpdate frequency

StarTimer ships an update every 3 days, Mastery every 2 weeks. The most recent releases landed on October 13, 2026 and October 3, 2026 respectively.

Scorecard4 real differences · 5 level
StarTimer versus Mastery: the parameters behind the verdict, then further details
ParameterStarTimerMastery
Price$2.99Free — better
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad — betteriPhone
Requires iOS16.2 — better26.0
Further details — not scored
Size4 MB27 MB
Age rating4++12
DeveloperSaptak SenAdam Kovacs

In-app purchases

None

StarTimer

No in-app purchases

3 purchases

Mastery

Subscriptions2
  • Mastery Pro Monthly$2.991 Month
  • Annual$14.991 Year
One-time1
  • Mastery Lifetime$29.99

Questions

Is StarTimer free?
StarTimer costs $2.99, with no in-app purchases.
Is Mastery free?
Mastery is free to download, with in-app purchases available.
Do StarTimer or Mastery have ads?
Neither StarTimer nor Mastery shows ads.
Which is updated more often, StarTimer or Mastery?
StarTimer ships an update every 3 days, and Mastery every 2 weeks. Most recently, StarTimer was updated on October 13, 2026 and Mastery on October 3, 2026.

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