Self vs Hydration Buddy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Self
This app guides users through self-improvement techniques like journaling, affirmations, and physical exercise. It aims to foster self-awareness and personal growth through various strategies. Access to all content requires a subscription.
- Journaling for pattern discovery
- Daily affirmations for focus
- Physical exercise guidance
- Reading recommendations
- Encourages trying new things
- Promotes self-awareness
Read full descriptionHide full description
Self-improvement is the improvement of one’s knowledge, status, or character by one’s own efforts. It’s the quest to make ourselves better in any and every facet of life. Self-improvement involves awareness, new learnings, discoveries about who we are and what makes us unique, and many insights and moments in which we see life and situations clearly. Self-improvement strategies: - Reading: books are great companions in our self-development journey, no matter what we want to improve. - Journaling: keeping a journal with regularity lets us discover patterns and recurring ideas. - Affirmations: daily affirmations let us deliberately focus on what we care about and bring more of it into our days. - Physical exercise: the body is an excellent source of information, and it constantly signals us what it needs. - Choose your words: what we say and how we say it is the first step to understanding ourselves better! - Do something for the first time: get out of your comfort zone and try out something new. Self-improvement almost always starts with self-awareness and the ability to transform your habits. The process of continual development connects us deeply to our essence. The people that choose self-improvement have powerful energy. They develop life principles, which provide a solid ground to stand on when hard days come. SUBSCRIPTIONS: -Your subscription will grant you unlimited access to all content for the duration of your subscription. -Payment will be charged to iTunes Account at confirmation of purchase -Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period -Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal -Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase -Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable -By using this app, you agree to our Terms of Use and Privacy Policy: https://sites.google.com/view/paulvi-app-bible/ and https://sites.google.com/view/paulvi-app-terms-conditions/ *Prices are equal to the value that "Apple's App Store Matrix" determines is the equivalent subscription price in $USD.
Hydration Buddy
Effortlessly monitor your daily water and caffeine intake to maintain a healthy balance. This app is designed to help users establish better hydration habits and manage their caffeine consumption effectively.
- Track daily water intake
- Monitor caffeine consumption
- Set hydration reminders
- Maintain healthy balance
- Improve hydration habits
Read full descriptionHide full description
Hydration Buddy helps you effortlessly track your daily water and caffeine intake, ensuring you maintain a healthy balance. Perfect for anyone looking to improve their hydration habits and manage caffeine consumption. Hydration Buddy utilizes the Apple Standard End-User License Agreement, which can be found at https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is ads: Hydration Buddy at none against Self's shown. Hydration Buddy also leads on update cadence (fortnightly vs every 12 months). Self's advantage is device support (3 vs 1). On price, rating, ratings volume and in-app purchases 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. Self sells 3 in-app purchases, starting at $6.99 per month and Hydration Buddy sells 1 in-app purchase, starting at $6.99 per year. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for Self against 5.0 for Hydration Buddy. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
Self ships an update every 12 months, Hydration Buddy fortnightly. Both last shipped on November 4, 2026.
| Parameter | Self | Hydration Buddy |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 12 months | Fortnightly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 24 MB | 15 MB |
| Age rating | 12+ | 12+ |
| Developer | Pavel Vinnik | Glen Riden |
Customer experience
Self
Hydration Buddy
In-app purchases
Self
- 1 Month Subscription$6.991 Month
- 1 Year Subscription3 Days trial$19.991 Year
- Lifetime Self-improvement$29.99
Hydration Buddy
- Yearly Premium Subscription$6.991 Year









