Built For This vs UnderTree
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Built For This
This app offers personalized fitness plans and workout tracking to help you achieve your health goals. It also includes features for meal tracking, habit building, and progress monitoring, with real-time coach messaging and integration with wearable devices.
- Personalized training plans
- Workout video guidance
- Meal and habit tracking
- Goal setting and progress monitoring
- Real-time coach messaging
- Body measurement and progress photos
- Wearable device integration
Read full descriptionHide full description
Empower Your Fitness Journey with Built For This. Our personalized approach will help you achieve your fitness goals and build habits for longevity. FEATURES: - Access training plans and track workouts - Follow along to exercise and workout videos - Track your meals and make better food choices - Stay on top of your daily habits - Set health and fitness goals and track progress towards your goals - Gain milestone badges for achieving new personal bests and maintaining habit streaks - Message your coach in real-time - Track body measurements and take progress photos - Get push notification reminders for scheduled workouts and activities - Connect your Apple Watch to track workouts, steps, habits, and more right from your wrist - Connect to other wearable devices and apps like the Apple Health App, Garmin, Fitbit, MyFitnessPal, and Withings devices to track workouts, sleep, nutrition, and body stats and composition Download the app today!
UnderTree
Cultivate emotional well-being through guided journaling and an AI-powered companion pet. Nurture your inner child, practice self-compassion, and track your progress as your digital forest grows.
- Micro-journaling with AI chat
- Nurture inner child
- Emotion-aware companion pet
- AI-powered reflection
- Track boundary setting
- Visual forest growth
Read full descriptionHide full description
Be the parent you always needed. Grow your inner forest with UnderTree. In the hustle of the world, your soul deserves a quiet corner. UnderTree is more than just a micro-diary; it’s a living, breathing sanctuary for self-reparenting and emotional growth. Under the shade of a digital tree, you’re never alone. Meet your forest companion—a pet that senses your moods, travels the world for you, and brings back "souvenirs for the soul" when you need them most. Why UnderTree? - Micro-Journaling: Capture small "Sparks" of joy or "Golden Hours" through simple, guided AI chats. - Nurture Your Inner Child: Practice self-compassion, set boundaries, and celebrate small wins. - Emotion-Aware Companion: Your pet stays by your side when you’re low and explores the world when you’re "in bloom." - AI-Powered Reflection: Your messy thoughts are gently organized into beautiful, private diary entries. - The Power of 'No': Track your journey of setting boundaries and finding inner peace. - Visual Growth: Watch your inner forest evolve as you check in with yourself daily. Key Features: - Soulful Chat: A non-judgmental AI space to vent, dream, and reflect. - Travel Souvenirs: Receive "Polaroid" memories from your pet’s journeys, tailored to your emotional state. - Smart Tagging: Automatically identify life’s "Golden Hours," "Sparks," and "Soul Rituals." - Privacy First: Your inner forest is your private sanctum. We prioritize your data security. Stop pleasing the world. Start growing your own forest. A Personal Note from the Creator: I built UnderTree not just as a developer, but as its very first resident. Like many of you, I’ve had those long nights where my thoughts felt too heavy and the world felt too loud. I needed a sanctuary where I could simply be—without judgment, without social pressure, and without noise. I wanted a companion to grow with, so I created Mochi, and planted this digital tree. My only hope is that UnderTree can offer you a sliver of light. I want you to feel heard, seen, and nurtured, even in your quietest moments of exhaustion. There is a quiet wish I hold: If the day comes when you no longer open this app, I won't be sad. I’ll be proud. Because it means you’ve found the strength to stand on your own. It means you’ve become your own forest, and you no longer need the shade of this tree to feel safe. Until then, UnderTree is here. Let’s grow, one "Seed of Hope" at a time. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Built For This at none against UnderTree's 2. Built For This also leads on device support (4 vs 2). UnderTree's advantage is update cadence (every 3 weeks vs every 2 months) and ratings volume (7 vs 1). On price, rating, ads and monetization model 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. UnderTree sells 2 in-app purchases, starting at $4.99 per month. Built For This asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Built For This against 4.9 for UnderTree. That said, the two scores are not equally well evidenced: UnderTree has 7 ratings behind it against 1, so its average is the more settled of the two.
Built For This ships an update every 2 months, UnderTree every 3 weeks. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.
| Parameter | Built For This | UnderTree |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.9 (7 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 7 — better |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPod |
| Requires iOS | 15.5 | 15.0 — better |
| Further details — not scored | ||
| Size | 181 MB | 35 MB |
| Age rating | 4+ | 12+ |
| Developer | Built For This LLC | Libella LLC |
Customer experience
Built For This
UnderTree
In-app purchases
Built For This
No in-app purchases
UnderTree
- UnderTree Plus Monthly$4.991 Month
- UnderTree Plus Annual7 Days trial$24.991 Year









