Foresta vs My Happy Diary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Foresta
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◆What is Foresta? When you vent your feelings in moments of stress or anxiety, a tree grows in your forest. ・Tree size = Amount of text vented ・Tree color = Positive/Negative level Visualizing your “emotional movements” allows intuitive reflection. The more you write, the more your forest grows and your heart lightens—we deliver this nurturing digital forest. ◆6 Reasons Foresta is Chosen 【Instant Logging】 Record not just once a day, but “the moment your emotions shift.” See where stress originates. 【Visualization in the Forest】 Grasp mood changes instantly through color and density—no need to scroll through text. 【Organize Emotions】 Break down your vented records into “emotion” and “cause.” Understand your emotional patterns. 【1-Minute Entry】 Just sliders + notes. In bubble mode, just type words. Super simple input you can keep up with even when busy. 【Gentle UI】 Relax with pastel trees and soft app design. Also supports dark mode. 【Complete Privacy】 Store locally on your device for peace of mind. Protect your important records with passcode or Face ID lock. ◆Main Features 【Record】 - Register, edit, delete emotion events - Choose input style: Text Mode / Bubble Mode - Select from 7 tree designs (Premium) 【Review】 - Weekly/Monthly View: See your forest at a glance by week/month - Search Filter: Instantly narrow down by keyword 【Organize】 - Link emotions to causes for organized tracking - Reuse past causes for efficient recording 【Analyze】 - Emotional balance trend graph - Visualize causes significantly impacting emotions (Premium) - Detailed analysis by emotion (Premium) - Long-term analysis up to 1 year (Premium) ◆ Recommended for you if: ・You feel tense and unable to sort out your fuzzy feelings ・You're too busy to find time to relieve stress ・You can't speak your mind on social media and want a safe place to vent ・Want to deepen self-understanding ・Want to confront your sensitive, easily hurt feelings Foresta is a place where you can freely express those feelings. Now, record your feelings as if planting trees, and let a forest grow in your heart. ◆Premium Plan Includes a 7-day free trial. Cancel anytime.
My Happy Diary
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Find and gently record the “small happiness” in your everyday life In the middle of busy days, why not pause for just a moment? Happy Diary – My Happy Diary is a journaling app that helps you nurture a positive mindset by writing down one “happy moment” each day. Simply save a photo and a short note to easily capture moments that bring you a sense of calm and warmth. Key Features Simple and easy-to-use design Look back on past memories with a calendar view Record your “happiness of the day” with photos Weekly and monthly AI-powered analysis reports Because it only takes one minute a day, it’s easy to keep going. By writing things down, you’ll start to notice more moments where you think, “Today wasn’t so bad after all.” Little by little, a more positive mindset will return. Recommended for people who: Want to relieve daily stress Want to regain a positive outlook Are looking for a journal app that’s easy to maintain Want to keep memories together with photos Wishing you a happy day, today and every day By finding small moments of happiness, everyday life becomes a little kinder. With Happy Diary – My Happy Diary, take time to care for your own heart. Terms of Service: https://yuki-sato-95.github.io/happy-diary-doc/terms.html
Screenshots
Verdict
The clearest difference is in-app purchases: Foresta at none against My Happy Diary's 1. My Happy Diary's advantage is ads (none vs shown) and iOS requirement (15.1 vs 18.2). On price, update cadence 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. My Happy Diary sells 1 in-app purchase, starting at $1.99 per month. Foresta asks for nothing beyond the download.
Both ship on a similar rhythm, roughly weekly. Both last shipped on October 30, 2026.
| Parameter | Foresta | My Happy Diary |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | Weekly |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 18.2 | 15.1 — better |
| Further details — not scored | ||
| Size | 13 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | Kaito Miura | yuki sato |
In-app purchases
Foresta
No in-app purchases
My Happy Diary
- プレミアムプラン(1ヶ月)14 Days trial$1.991 Month









