BrainKeeper vs WaterKeep
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BrainKeeper
Engage in daily, quick brain exercises designed to sharpen your mind and improve memory. This program offers three difficulty levels to challenge users and help prevent cognitive aging. Consistent use for 60 days can lead to noticeable improvements in mental acuity.
- Daily brain exercises
- Memory improvement
- Cognitive aging prevention
- Less than 5 minutes per workout
- Three difficulty levels
- No ads or subscriptions
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This app is inspired by Dr. Ryuta Kawashima's simple math brain training program. 60 days with BrainKeeper will help you tone your brain and prevent aging. Regular exercise with the app improves memory by 10%. It works! -A program of daily brain exercises(если разнообразные упражнения, то можно сказать и activities) to sharpen your mind -Daily workout takes less than 5 minutes -Three difficulty levels -No ads or subscriptions
WaterKeep
This app offers a simple and elegant way to track your daily water intake. With a minimalist design and one-tap logging, it makes staying hydrated hassle-free. Focus on your hydration goals without complex metrics or overwhelming graphs.
- Minimalist hydration tracking
- One-tap logging
- Elegant and simple interface
- Clear intake display
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Introducing WaterKeep, the epitome of minimalist hydration tracking. Why Choose WaterKeep? Pure Simplicity: No overwhelming graphs, no complicated metrics. Just your water intake, clear and concise. One-Tap Logging: Update your intake with a single tap. It's hydration made hassle-free. Elegant Design: Our minimalist interface ensures you focus on what's essential—staying hydrated. Dive into a hydration experience that's clean, straightforward, and tailored for those who appreciate the beauty in simplicity.
Screenshots
Verdict
The clearest difference is update cadence: WaterKeep at every 4 days against BrainKeeper's fortnightly. BrainKeeper's advantage is iOS requirement (14.1 vs 16.1). On price, rating, ratings volume and ads 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. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for BrainKeeper against 5.0 for WaterKeep. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
BrainKeeper ships an update fortnightly, WaterKeep every 4 days. The most recent releases landed on October 15, 2026 and October 18, 2026 respectively.
| Parameter | BrainKeeper | WaterKeep |
|---|---|---|
| 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 | Fortnightly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 14.1 — better | 16.1 |
| Further details — not scored | ||
| Size | 5 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Kamil Suleimanov | Parker Muery |
Customer experience
BrainKeeper
WaterKeep
In-app purchases
BrainKeeper
No in-app purchases
WaterKeep
No in-app purchases
Questions
Is BrainKeeper free?
Is WaterKeep free?
Which has better reviews, BrainKeeper or WaterKeep?
Do BrainKeeper or WaterKeep have ads?
Which is updated more often, BrainKeeper or WaterKeep?
Other comparisons
