Hi, Tree vs GuppyTime
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hi, Tree
Discover and name trees in your community, creating a shared map of personal arboreal landmarks. Use AI to learn about species, age, and history. Track your collection and engage with other nature enthusiasts.
- Photograph and claim trees
- Name and pin trees on a map
- Build a personal tree collection
- Discover unclaimed monumental trees
- AI-powered tree identification and information
- Seasonal photo updates and comments
- Community leaderboard and check-ins
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Hi, Tree turns the trees you walk past into named places. Spot a tree. Take a photo. Give it a personal name and pin it on a community map of monumental trees. The first person to claim each tree becomes its naturalist — and once it's yours, it's yours. A small, slow collection. Hi, Tree is a naturalist's notebook for the world's trees. Build a personal collection one walk at a time. Open the map and discover the trees other people have already loved — the oak in front of someone's grandmother's house, the cedar on the edge of a park, the tree at the bottom of your street that someone gave a name to before you walked past it. Find a tree no one's named yet. Other trees on the map are still unclaimed — monumental ones that have been mapped but never named, waiting for the first naturalist to show up. The plane tree by your bus stop. The oak in the park down the road. The cedar that's been there longer than your neighbourhood. Open the map, pick one near you, walk over, take its photo, and give it a name. Some have been waiting months for someone to notice them. Tree Chat — your AI naturalist companion. Tap any tree and ask. Hi, Tree uses AI to identify the species from your photo and surface the things a curious naturalist would want to know — likely age, regional history, seasonal behaviour, what to look for next time. AI suggestions are best-effort, not gospel; check anything you'd act on. A living record, written by everyone. Trees in Hi, Tree aren't frozen the moment they're claimed. Add photo updates as the tree changes through the seasons. Leave a comment on a tree someone else claimed, and the owner can reply. Tap a heart to like a tree you love — its naturalist gets a quiet push notification. Check in at the trees you visit on your walks, and see the top naturalists on a community leaderboard. The trees you love become part of a shared, living record — one anyone on earth can walk up to and listen to. Carry your collection with you. Sign in with Apple or Google to keep your trees, claims, check-ins, and likes on every device you use. Or skip it and stay anonymous — the choice is yours, and you can decide later. What you can do with Hi, Tree • Photograph and claim a tree on your walk • Name it, write a field note, and pin it on the map • Build a personal collection of trees that mean something to you • Hunt down unclaimed monumental trees on the map and be the first to name one • Discover trees other naturalists have already claimed near you • Check in at trees you visit and rise up the naturalists' leaderboard • Comment on others' trees and reply to comments on yours • Add fresh photos of any tree as the seasons change • Like trees you love and get push notifications when yours are liked • Ask Tree Chat about species, age, and seasonal changes • Share a beautifully composed specimen card with friends • Sign in with Apple or Google to sync across devices For people who notice trees. Hi, Tree doesn't pretend to do conservation work directly. It's a tool for paying attention. We think attention is upstream of caring, and caring is upstream of action. Free. iPhone-only for now. — About claiming: claiming a tree on Hi, Tree is a personal and community gesture, not a legal one. Nobody owns a tree. Think of it the way you'd think of naming a star — a small ritual of attention. Privacy: we don't sell your data and don't run advertising. Full policy at hitree.app/privacy-policy. Questions? hello@hitree.app
GuppyTime
Capture and preserve life's fleeting moments with photos and voice recordings. Organize memories by people and life chapters, and revisit them through a unique time machine feature. Designed for quick and simple memory recording.
- Quickly capture memories
- Add photos and voice recordings
- Organize by person and life chapter
- Browse shared memories
- Rediscover memories via Time Machine
- Revisit past memories from the same day
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GuppyTime helps you capture the little moments that make up a life. Save memories as they happen — a funny comment, a first step, a school achievement, a family moment, or something you simply don't want to forget. Add photos and voice recordings to your memories, organize them by the people and chapters of life they belong to, and return to them later through GuppyTime's Time Machine. GuppyTime is designed to make recording a memory quick and simple, so you can spend less time entering information and more time living the moment. Features include: • Quickly capture memories • Add photos and voice memories • Organize memories by person and life chapter • Browse the people who share your memories in My World • Rediscover memories through the Time Machine • Revisit memories from the same day in previous years • Search and browse your saved memories From everyday moments to milestones, GuppyTime gives those memories a place to live. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: GuppyTime at 100% against Hi, Tree's 63%. GuppyTime also leads on ads (none vs shown) and rating (5.0 vs 4.8). Hi, Tree's advantage is ratings volume (94 vs 3) and monetization model (ad-supported vs free with in-app purchases). On price, update cadence, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
GuppyTime holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Hi, Tree has 94 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 63% of Hi, Tree's written reviews are positive against 100% of GuppyTime's.
Hi, Tree ships an update every 6 days, GuppyTime weekly. Both last shipped on October 31, 2026.
| Parameter | Hi, Tree | GuppyTime |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (94 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 62.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 94 — better | 3 |
| Update frequency | Every 6 days — better | Weekly |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 | 13.0 — better |
| Further details — not scored | ||
| Size | 51 MB | 56 MB |
| Age rating | 12+ | 4+ |
| Developer | NCOM d.o.o. | Allan Hirsch |
Customer experience
Hi, Tree
GuppyTime
In-app purchases
Hi, Tree
No in-app purchases
GuppyTime
No in-app purchases









