Comparison

Anecdata.org vs KnowKi

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

Head to head
About

Anecdata.org

This platform empowers users to create, manage, and participate in citizen science projects. It facilitates data collection in the field, even offline, and supports project analysis and download.

Highlights
  • Project creation and management
  • Datasheet design
  • Participant invitation
  • Offline data collection
  • Data download and analysis
Features
Read full description

Anecdata.org is a free online platform for managing all aspects of a citizen science project, from project creation, datasheet design, inviting participants, collecting data, to eventual download and analysis of data! The app makes it easy for you to create your own project or find a project to join, with excellent offline support for collecting data in the field.

About

KnowKi

Discover and learn about the living beings in your chosen environment. This app uses real-world observations and interactive lessons to help you identify local flora and fauna, building your knowledge day by day. Engage with fun quizzes and track your progress in your personal field guide.

Highlights
  • Identify local species by group (birds, plants, insects, etc.)
  • Learn with real photos and iNaturalist observations
  • Daily quizzes and practice exercises
  • Personalized field guide with progress tracking
  • Explore species by region or specific locations
  • Connect with friends and share scores
Read full description

Get to know the living beings around you by name. KnowKi teaches you the species that people see regularly near a place you choose, with real photos, short practice, and a path that builds day by day. Botanist and writer Robin Wall Kimmerer suggests ki (say "key") for any living being of the Earth, in place of "it": a bird, a tree, a snail is someone, not something. Together they are kin, in place of "them." KnowKi helps you get to know the more-than-human beings around you, until you can recognize kin in the wild with no key. Your guide is Āki, a kiwi from Aotearoa New Zealand whose name, in te reo Māori, means to encourage and urge on. A PATH OF SIX SPECIES AT A TIME Pick a place and a group: birds, mammals, plants, insects, arachnids, herps (reptiles and amphibians), fish, crustaceans, sea slugs, or other mollusks. Groups appear where they live, so sea slugs show up on the coast, not in the desert. Each unit introduces six species: meet them, match each one to a new photo, practice with ten photos and four choices, then pass a checkpoint to open the next six. REAL SIGHTINGS FROM REAL PLACES Lessons use research-grade iNaturalist observations recorded near your place, most commonly seen first. Native species lead the way; each chapter ends with an optional unit of introduced species, the ones people brought here. Protected species are included too, with their conservation status, and their locations always stay hidden. Every photo is credited to the naturalist who took it. PRACTICE THAT STICKS Missed species come back next time, and correct answers return over the following days. Recall cards ask you to type or say a name from the photo alone. A species becomes kin once you recognize it in two different photos on two different days. PLAY The Daily: five species a day, easy to hard, in three editions: your neighborhood, your country, and the world. Share your score without spoilers. Quirky Quizzes test what wild neighbors leave behind: eggs, nests, bones, tracks, feathers, and scat. YOUR FIELDBOOK Every species you've met, with a short introduction from Wikipedia, a map of where it's found, and your progress. Filter by group, favorites, introduced or protected species, and earn milestones along the way. TRIPS Learn the kin of any country, every U.S. national park, marine sanctuaries, or the most biodiverse places for life on Earth. GO MEET YOUR KIN Once you have 10 kin, KnowKi shows which are out and about near you this month, with a monthly Field Bingo card. Photograph what you find and share it on iNaturalist; connect your iNaturalist username to stamp each species you've found. Know a species well? Help identify other people's observations of it. A HOME-SCREEN WIDGET Your trail, today's goal, and your Daily score, with Āki under a sky that follows the time of day. PLAY WITH FRIENDS Sign in, turn on Friends, pick a nature name, and send your invite link. See each other's kin, trails, milestones, and Daily scores (a friend's score shows once you've played that Daily too). Species and places are never shared. YOURS, ON EVERY DEVICE No account needed. If you like, sign in with Apple to keep one Fieldbook on your iPhone and at knowki.app; KnowKi never asks for your name or email. No ads, no analytics SDKs, and no tracking. Optional soundscapes and gentle reminders. Lessons need an internet connection. Photos and observations come from iNaturalist contributors under Creative Commons licenses; species introductions are excerpts from Wikipedia (CC BY-SA).

Screenshots

Anecdata.org4 screens
KnowKi4 screens

Verdict

The call

The clearest difference is update cadence: KnowKi at every 4 days against Anecdata.org's every 3 weeks. Anecdata.org's advantage is iOS requirement (13.0 vs 17.0). On price, rating, ratings volume and ads 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

On the App Store both sit at effectively the same score — 5.0 for Anecdata.org against 5.0 for KnowKi. Both are backed by a comparable volume of ratings — 4 and 2 respectively.

UpkeepUpdate frequency

Anecdata.org ships an update every 3 weeks, KnowKi every 4 days. The most recent releases landed on November 2, 2026 and November 10, 2026 respectively.

Scorecard2 real differences · 8 level
Anecdata.org versus KnowKi: the parameters behind the verdict, then further details
ParameterAnecdata.orgKnowKi
PriceFreeFree
Rating5.0 (4 ratings)5.0 (2 ratings)
Positive reviews—100.0% of reviews
Number of ratings4 — better2
Update frequencyEvery 3 weeksEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS13.0 — better17.0
Further details — not scored
Size47 MB44 MB
Age rating4+4+
DeveloperMDI Biological LaboratoryGarrett Craig

Customer experience

Anecdata.org

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

KnowKi

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Anecdata.org

No in-app purchases

None

KnowKi

No in-app purchases

Questions

Is Anecdata.org free?
Anecdata.org is free to download, with no in-app purchases.
Is KnowKi free?
KnowKi is free to download, with no in-app purchases.
Which has better reviews, Anecdata.org or KnowKi?
Anecdata.org and KnowKi are both rated 5.0 out of 5 on the App Store, from 4 and 2 ratings respectively.
Do Anecdata.org or KnowKi have ads?
Neither Anecdata.org nor KnowKi shows ads.
Which is updated more often, Anecdata.org or KnowKi?
Anecdata.org ships an update every 3 weeks, and KnowKi every 4 days. Most recently, Anecdata.org was updated on November 2, 2026 and KnowKi on November 10, 2026.

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