Mastery vs DecisionLog
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Mastery
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Mastery helps you build discipline through repetition. Track any skill. Log your practice. Watch yourself improve, one rep at a time. Whether you are learning something new, training your body, refining your craft, or building steady habits, Mastery gives you a simple system to return to daily. Progress is not about perfection. It is about showing up. Key Features: ⢠Track any skill or habit with fast, simple logging ⢠Level system from 1 to 100 to make growth visible ⢠Milestone titles from Initiate to Master ⢠Daily logs with notes to record your practice over time ⢠Clean design built for focus ⢠The Dojo: a daily show-up journal for steady, meaningful growth The Dojo is a daily practice space built around consistency, not streaks. A place to show up, reflect, and anchor your training in real action. Each day offers a simple scene and choice rooted in practice: body, mind, and spirit. Build discipline. Track progress. Stay with the work.
DecisionLog
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DecisionLog helps you think clearly and make better decisions. Write down important decisions, your reasoning, and revisit them later to reflect and improve your thinking over time. Optional reminders help you review past decisions and learn from outcomes. Features: ⢠Log decisions with context and reasoning ⢠Set reminders to reflect later ⢠Unlimited local storage ā no accounts, no analytics ⢠All data stays on your device DecisionLog Pro unlocks unlimited decisions and removes ads with a one-time purchase.
Screenshots
Verdict
The clearest difference is price: DecisionLog at Free against Mastery's $1.99. DecisionLog also leads on update cadence (every 2 days vs every 9 days). Mastery's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
DecisionLog is free to download; Mastery costs $1.99 up front. DecisionLog sells 1 one-off in-app purchase. Mastery asks for nothing beyond the download.
Mastery ships an update every 9 days, DecisionLog every 2 days. The most recent releases landed on October 9, 2026 and October 12, 2026 respectively.
| Parameter | Mastery | DecisionLog |
|---|---|---|
| Price | $1.99 | Free ā better |
| Update frequency | Every 9 days | Every 2 days ā better |
| Ads | No ā better | Yes |
| In-app purchases | No ā better | Yes |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 ā better | 18.6 |
| Further details ā not scored | ||
| Size | 37 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Benny Jien | DENIS DANIEL NASTIC |
In-app purchases
Mastery
No in-app purchases
DecisionLog
- DecisionLog Pro$2.99









