Comparison

Siddha vs 21 Days

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

Head to head
About

Siddha

Features
Read full description

Siddha โ€“ Private Habit & Mood Tracker for Men Take control of your habits, mood, and mental clarity with a powerful, privacy-first tracker built for men. Siddha helps you track ejaculation, semen retention, mood, energy, libido, and focus โ€” all in one secure, offline app designed for self-improvement, discipline, and awareness. 100% Private. Offline. Secure. Your data is stored locally on your device using Apple Core Data โ€” fully encrypted and never uploaded. No servers. No tracking. No data collection. Unlike most habit trackers and health apps, your data is completely yours. Track What Matters Log ejaculation events (voluntary & involuntary) Track mood, energy, libido, focus, sociability Add notes for deeper insights Understand your patterns, triggers, and progress. Calendar & Streak Tracker Visual calendar of activity Track current & longest streaks Identify behavior patterns over time Stay consistent and motivated. Mood & Mental State Insights Track changes in mental clarity, mood, and energy View trends with graphs and predictions Understand your behavioral cycles Build data-driven self-awareness. Learn & Improve Explore content on: Male health & hormones Semen retention (NoFap) Psychology & mental clarity Daily Reminders Stay consistent with gentle reminders to log mood and habits. Built for Discipline & Growth Perfect for: Habit tracking & self improvement Mental clarity & focus Semen retention / NoFap journey Fast, Minimal & Offline Clean, distraction-free design Works fully offline Smooth and intuitive Now offers iCloud backup into your personal apple account. Why Siddha Most apps track your data. Siddha protects it. No cloud storage. No ads. No data selling. Just you, your data, your growth.

About

21 Days

Features
Read full description

Build habits that actually stick โ€” 21 days at a time. 21 Days Challenge is a simple and powerful habit tracker designed for real, lasting change. Pick a goal, commit for 21 days, check in daily, and watch your streak grow one day at a time. Whether you want to drink more water, read every day, exercise, meditate, or build any daily routine, 21 Days Challenge keeps you focused, motivated, and consistent. KEY FEATURES โ€ข Multiple Habit Challenges Track several habits at once including health, fitness, learning, productivity, mindfulness, and more โ€” all from one home screen. โ€ข Streaks & Milestones Watch your streak grow daily. Reach milestones at Day 7 and Day 14, and unlock badges as you build consistency. โ€ข Daily Journal Add quick notes, moods, or reflections with each check-in. Discover patterns and understand what works best for you. โ€ข Insightful Stats View beautiful charts showing completion rates, mood trends, and overall progress. โ€ข Smart Reminders Set custom reminders for each challenge at the times that work best for you. โ€ข Private by Default Your data stays on your device. Optional cloud sync is designed with privacy in mind. HOW IT WORKS 1. Pick your challenge โ€” choose a suggested habit or create your own 2. Check in daily โ€” track progress with a single tap 3. Build momentum โ€” strengthen routines through consistency BUILT FOR EVERY KIND OF GROWTH โ€ข Health & fitness โ€” water, sleep, movement โ€ข Learning & focus โ€” reading, studying, skill-building โ€ข Productivity โ€” deep work, discipline, routines โ€ข Mindfulness & wellness โ€” meditation, gratitude, journaling โ€ข Creativity โ€” writing, drawing, creating โ€ข Personal goals โ€” anything that matters to you Start your first 21 days today with 21 Days Challenge โ€” your habit tracker, streak builder, and daily journal for lasting change. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Siddha4 screens
21 Days4 screens

Verdict

The call

The clearest difference is in-app purchases: Siddha at none against 21 Days's 4. Siddha also leads on update cadence (weekly vs every 3 weeks). 21 Days's advantage is iOS requirement (15.0 vs 18.2). On price, ads and device support 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. 21 Days sells 4 in-app purchases, starting at $0.99 per month. Siddha asks for nothing beyond the download.

UpkeepUpdate frequency

Siddha ships an update weekly, 21 Days every 3 weeks. The most recent releases landed on October 8, 2026 and October 24, 2026 respectively.

Scorecard3 real differences ยท 3 level
Siddha versus 21 Days: the parameters behind the verdict, then further details
ParameterSiddha21 Days
PriceFreeFree
Update frequencyWeekly โ€” betterEvery 3 weeks
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPadiPhone, iPod
Requires iOS18.215.0 โ€” better
Further details โ€” not scored
Size21 MB46 MB
Age rating4+4+
DeveloperSrinath VangalaiLoma Technology

In-app purchases

None

Siddha

No in-app purchases

4 purchases

21 Days

Subscriptions4
  • Pro Monthly$0.991 Month
  • Ultra Pro Monthly$0.991 Month
  • Pro Yearly$4.991 Year
Show 1 more
  • Ultra Pro Yearly$9.991 Year

Questions

Is Siddha free?
Siddha is free to download, with no in-app purchases.
Is 21 Days free?
21 Days is free to download, with in-app purchases available.
Do Siddha or 21 Days have ads?
Neither Siddha nor 21 Days shows ads.
Which is updated more often, Siddha or 21 Days?
Siddha ships an update weekly, and 21 Days every 3 weeks. Most recently, Siddha was updated on October 8, 2026 and 21 Days on October 24, 2026.

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