Comparison

Built For This vs UnderTree

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read 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!

About

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.

Highlights
  • Micro-journaling with AI chat
  • Nurture inner child
  • Emotion-aware companion pet
  • AI-powered reflection
  • Track boundary setting
  • Visual forest growth
Features
Read 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

Built For This4 screens
UnderTree4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
Built For This versus UnderTree: the parameters behind the verdict, then further details
ParameterBuilt For ThisUnderTree
PriceFreeFree
Rating5.0 (1 ratings) — better4.9 (7 ratings)
Positive reviews—100.0% of reviews
Number of ratings17 — better
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPod
Requires iOS15.515.0 — better
Further details — not scored
Size181 MB35 MB
Age rating4+12+
DeveloperBuilt For This LLCLibella LLC

Customer experience

Built For This

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

UnderTree

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Built For This

No in-app purchases

2 purchases

UnderTree

Subscriptions2
  • UnderTree Plus Monthly$4.991 Month
  • UnderTree Plus Annual7 Days trial$24.991 Year

Questions

Is Built For This free?
Built For This is free to download, with no in-app purchases.
Is UnderTree free?
UnderTree is free to download, with in-app purchases available.
Which has better reviews, Built For This or UnderTree?
Built For This is rated higher. Built For This averages 5.0 out of 5 from 1 ratings, while UnderTree averages 4.9 from 7 ratings.
Do Built For This or UnderTree have ads?
Neither Built For This nor UnderTree shows ads.
Which is updated more often, Built For This or UnderTree?
Built For This ships an update every 2 months, and UnderTree every 3 weeks. Most recently, Built For This was updated on October 24, 2026 and UnderTree on October 22, 2026.

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