Blip Daily vs 21DaysOfChange
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Blip Daily
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Dear User, With the Blip Daily app, you can set reminders for every two, three, four, or five days. Sometimes, doctors advise taking prescriptions every two to three days to prevent forgetting doses. The Blip Daily app will help you remember to take your medicine in such cases. If you want reminders on weekdays, you can select multiple options (e.g., every Sunday, Monday). However, for reminders based on specific days, you can only choose one option. After selecting your preferred options, click the "Set Blips" button in the top right corner. You will then be prompted to choose three times for reminders: morning, afternoon, and night. You can skip any of these times. For example, if you only want a morning reminder, you can skip the other two.
21DaysOfChange
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With our clear guidance and a bit of fun, we'll help you transform your habits into something you can be proud of. Imagine growing a tree - starting small, nurturing it daily, and watching it flourish. In just 21 days, you'll cultivate a new habit with tips and strategies that will last a lifetime. Join us on this transformative journey and take control of your lifestyle, one habit at a time. Terms Of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.21daysofchange.app/privacypolicy
Screenshots
Verdict
The clearest difference is in-app purchases: Blip Daily at none against 21DaysOfChange's 4. Blip Daily also leads on iOS requirement (12.0 vs 16.4). 21DaysOfChange's advantage is ads (none vs shown) and update cadence (every 9 months vs every 49 months). On price 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
Both are free to download. 21DaysOfChange sells 4 in-app purchases, starting at $5.99 per month. Blip Daily asks for nothing beyond the download.
Blip Daily ships an update every 49 months, 21DaysOfChange every 9 months. The most recent releases landed on September 16, 2026 and September 18, 2026 respectively.
| Parameter | Blip Daily | 21DaysOfChange |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 49 months | Every 9 months โ better |
| Ads | Yes | No โ better |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.0 โ better | 16.4 |
| Further details โ not scored | ||
| Size | 12 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | gangadhar goud | Hong Son Vu |
In-app purchases
Blip Daily
No in-app purchases
21DaysOfChange
- 21DaysOfChange Monthly Premium$5.991 Month
- 21DaysOfChange Monthly Business$17.991 Month
- 21DaysOfChange Yearly Premium$71.991 Year
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- 21DaysOfChange Yearly Business$214.991 Year









