Comparison

Hi, Tree vs GuppyTime

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

Head to head
About

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.

Highlights
  • 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
Features
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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

About

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.

Highlights
  • 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
Features
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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

Hi, Tree4 screens
GuppyTime4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

Hi, Tree ships an update every 6 days, GuppyTime weekly. Both last shipped on October 31, 2026.

Scorecard6 real differences · 4 level
Hi, Tree versus GuppyTime: the parameters behind the verdict, then further details
ParameterHi, TreeGuppyTime
PriceFreeFree
Rating4.8 (94 ratings)5.0 (3 ratings) — better
Positive reviews62.5% of reviews100.0% of reviews — better
Number of ratings94 — better3
Update frequencyEvery 6 days — betterWeekly
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.113.0 — better
Further details — not scored
Size51 MB56 MB
Age rating12+4+
DeveloperNCOM d.o.o.Allan Hirsch

Customer experience

Hi, Tree

All ratings92 ratings
Positive95.7%
Neutral2.2%
Negative2.2%
Written reviews8 reviews
Positive62.5%
Neutral25.0%
Negative12.5%

GuppyTime

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Hi, Tree

No in-app purchases

None

GuppyTime

No in-app purchases

Questions

Is Hi, Tree free?
Hi, Tree is free to download, with no in-app purchases.
Is GuppyTime free?
GuppyTime is free to download, with no in-app purchases.
Which has better reviews, Hi, Tree or GuppyTime?
GuppyTime is rated higher. Hi, Tree averages 4.8 out of 5 from 94 ratings, while GuppyTime averages 5.0 from 3 ratings.
Do Hi, Tree or GuppyTime have ads?
Hi, Tree shows ads; GuppyTime does not.
Which is updated more often, Hi, Tree or GuppyTime?
Hi, Tree ships an update every 6 days, and GuppyTime weekly. Most recently, Hi, Tree was updated on October 31, 2026 and GuppyTime on October 31, 2026.

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