JoyKeeper vs ZS Diary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JoyKeeper
Track your emotional journey and preserve life's precious moments with this personal mood and memory companion. It offers intuitive mood tracking, rich memory creation with media, and secure local storage for your private data.
- Intuitive mood tracking
- Rich memory creation (photos, videos, text)
- Audio recording for voice memos
- Secure local data storage
- User-friendly interface
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JoyKeeper is your personal mood and memory companion, designed to help you track your emotional journey and preserve life's precious moments. KEY FEATURES: • Intuitive mood tracking with visual mood dial • Create rich memories with photos, videos, and text • Audio recording for voice memos and reflections • Secure local storage of all your personal data • Beautiful, user-friendly interface Whether you're looking to understand your emotional patterns or simply want to preserve special moments, JoyKeeper provides a safe, private space for your thoughts and memories. Your privacy is our priority - all data is stored securely on your device. No cloud storage means your personal moments stay truly personal. Start your journey of mindful reflection and memory keeping today with JoyKeeper. TERMS OF SERVICE: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
ZS Diary
This app transforms daily entries into unique, hand-painted illustrations. Track your monthly moods with a visually appealing calendar and share your creations. Offers multiple art styles and language support.
- Illustrated diary entries
- Monthly mood calendar
- Multiple illustration styles
- Sharing capabilities
- Diary backup and restore
- Multilingual support
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A diary that paints your day. Some days are special. Most are quiet at home. ZS Diary treasures both — turning each daily entry into a hand-painted illustration, and gathering a month of moods into a soft calendar. — Features — • Painted Diary Write a short note about your day and choose how you feel. ZS Diary draws it as an illustration in your chosen style. • Mood Calendar Track how a month feels, at a glance. Each day's emotion shimmers as a glass jelly on a soft monthly calendar. • Sharing Share your illustrated diary and mood calendar wherever you like. • Four Illustration Styles Warm — soft, hand-drawn watercolor Pixel — playful retro pixel art Cinematic — emotional, semi-realistic illustration (Vivid only) Painterly — fine art oil painting (Vivid only) • Nine Languages Available in Korean, English, Japanese, Chinese (Simplified/Traditional), Spanish, French, German, and Portuguese (Brazil). • Diary Backup & Restore — Subscriptions — ZS Diary is free to try. New accounts receive 1,500 credits to start drawing right away. Pastel — Monthly or Yearly ZS Diary's standard illustration model, Pastel-exclusive diary covers and styles, and a steady supply of credits each month. Vivid — Monthly or Yearly All ZS Diary illustration models, Vivid-exclusive Cinematic & Painterly styles, the largest credit pool, and limited-edition diary covers (custom photo covers and animated covers). Subscriptions automatically renew until canceled. — Privacy — Your diary stays on your device. Entries and illustrations are stored locally and never uploaded to a server. — From MilkbockLab — ZS Diary is made by MilkbockLab, an independent studio designing soft, considered software for the quiet hours. Privacy Policy: https://milkbock.github.io/zipsoon-legal/privacy-policy-en.html Terms of Use (EULA): https://milkbock.github.io/zipsoon-legal/terms-of-service-en.html Support: hello@milkbocklab.com
Screenshots
Verdict
The clearest difference is iOS requirement: ZS Diary at 15.1 against JoyKeeper's 17.5. 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. JoyKeeper sells 2 in-app purchases, starting at $2.99 per month and ZS Diary sells 6 in-app purchases, starting at $4.99 per month. 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 JoyKeeper against 5.0 for ZS Diary. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
| Parameter | JoyKeeper | ZS Diary |
|---|---|---|
| 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 3 days | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.5 | 15.1 — better |
| Further details — not scored | ||
| Size | 2 MB | 59 MB |
| Age rating | 12+ | 4+ |
| Developer | NCST | Kyounghwan Kang |
In-app purchases
JoyKeeper
- Monthly Premium$2.991 Month
- Yearly Premium14 Days trial$24.991 Year
ZS Diary
- Pastel Monthly$4.991 Month
- Vivid Monthly$9.991 Month
- Pastel Yearly$50.991 Year
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- Vivid Yearly$101.991 Year
- 825 Credits$0.49
- 2,750 Credits$1.49









