BrainKeeper vs Quiet MoodLog
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
Quiet MoodLog
This app offers a private and simple way to log your daily mood, thoughts, and patterns. Its clean design focuses on distraction-free tracking, with on-device storage for your entries. An optional Pro upgrade allows for data export.
- Quick mood tracking
- Simple daily logging
- Private on-device storage
- Distraction-free design
- Export entries (Pro)
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Quiet MoodLog is a private mood and symptom journal. There is no account, no cloud, and no server — every entry lives only on your device, and you can take it with you or delete it at any time. Open the app, tap how you feel, done. HOW IT WORKS • Log your mood in two taps, with an optional note • Track symptoms like headaches or fatigue, with intensity • Add tags (exercise, poor sleep, work stress…) to any entry • A gentle daily reminder helps you keep the habit — optional, and processed entirely on your phone UNDERSTAND YOUR PATTERNS • Trends, streaks and weekday averages • Mood distribution at a glance • Patterns: see how your tags and symptoms line up with your mood — computed entirely on your device, never uploaded • Calendar view of your month • Search and filter your full history QUIET MOODLOG PRO — one small one-time purchase, no subscription • Removes ads completely, including every ad network request • App lock with Face ID, Touch ID or PIN • Passphrase-encrypted backups — restoring is free for everyone, always. Your data is never held hostage • PDF reports: a clean summary of your moods, symptoms and patterns, ready to bring to a therapist • CSV export of your full history PRIVACY, FOR REAL No sign-up. No analytics on your journal. No cloud copies. Your entries never leave your device unless you export them yourself. The free version shows a single small banner ad; Pro removes ads entirely. Quiet MoodLog is a journal, not a medical device — it doesn't diagnose or treat any condition. If you're struggling, please reach out to a professional.
Screenshots
Verdict
The clearest difference is in-app purchases: BrainKeeper at none against Quiet MoodLog's 1. BrainKeeper also leads on ads (none vs shown) and update cadence (fortnightly vs every 2 months). Quiet MoodLog's advantage is ratings volume (3 vs 1). On price, rating, review sentiment 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. Quiet MoodLog sells 1 one-off in-app purchase. BrainKeeper asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for BrainKeeper against 5.0 for Quiet MoodLog. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
BrainKeeper ships an update fortnightly, Quiet MoodLog every 2 months. The most recent releases landed on October 15, 2026 and October 12, 2026 respectively.
| Parameter | BrainKeeper | Quiet MoodLog |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (3 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 1 | 3 — better |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.1 | 13.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Kamil Suleimanov | Bilal Uslu |
Customer experience
BrainKeeper
Quiet MoodLog
In-app purchases
BrainKeeper
No in-app purchases
Quiet MoodLog
- Pro Unlock$6.99









