cntrlA vs SDay
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
cntrlA
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Create Your Own Challenges and Become Better! Our app helps you take on new challenges and break bad habits. Create personalized challenges, set goals, choose deadlines, and track your progress every day. Key Features: Easy challenge creation with customizable names, descriptions, and deadlines. Track your achievements with an intuitive interface and widgets. Stay motivated with reminders to keep you on track. Fully personalized: choose emojis and add descriptions for each challenge. Who is this app for? For anyone looking to improve their life, break bad habits, or simply test their willpower. Whether it’s giving up coffee, social media, or complaints about life — start your journey to a better version of yourself today! Download now and start changing your life! Terms of use: https://cntrlf.org/cntrlA/cntrlA-terms-of-use.html
SDay
Simplify your life and enhance productivity with this straightforward application. It aims to cut through complexity, offering tools to help you achieve more. Designed for ease of use, it focuses on improving daily routines.
- Life improvement tools
- Productivity boost
- Simplified interface
- Focus on daily routines
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A super-simple app to improve your life and boost your productivity in a world that is too complicated.
Screenshots
Verdict
The clearest difference is in-app purchases: cntrlA at none against SDay's 2. SDay's advantage is iOS requirement (15.0 vs 17.6). On price, update cadence, 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
Both are free to download. SDay sells 2 in-app purchases, starting at $4.99 per month. cntrlA asks for nothing beyond the download.
cntrlA ships an update every 2 weeks, SDay monthly. The most recent releases landed on September 9, 2026 and September 22, 2026 respectively.
| Parameter | cntrlA | SDay |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (3 ratings) — better |
| Positive reviews | — | 95.8% of reviews |
| Number of ratings | — | 3 — better |
| Update frequency | Every 2 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 13 MB | 54 MB |
| Age rating | 4+ | 17+ |
| Developer | Yauheni Mokhan | Kirill Karavaev |
In-app purchases
cntrlA
No in-app purchases
SDay
- SDay Pro Monthly$4.991 Month
- SDay Pro Annual$49.991 Year
