Comparison

Chronos Notes vs Seek by iNaturalist

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

Head to head
About

Chronos Notes

Organize historical notes and events into a visual, chronological timeline. Create timelines for any historical period or event, navigate through them, and use tags for easy searching and filtering.

Highlights
  • Chronological timeline creation
  • Organize notes by date
  • Navigate via timeline or event list
  • Tagging for easy filtering
  • Search historical events
Features
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Chronos Notes offers a way to organize historical notes into a coherent, chronological timeline. Notes can be created in any order and Chronos Notes will arrange them into a timeline for you. Want to see the first world war mapped in time and place? What about the crusades? You can create any kind of historical events; Chronos Notes will help you organize them. You can navigate using the timeline or view events directly using the event list. Attaching tags to events will help you find them easily through filtering and search.

About

Seek by iNaturalist

Identify plants, animals, and fungi using your phone's camera. Learn about the organisms around you and earn badges for your discoveries. It's a fun, kid-safe way to explore nature and expand your knowledge of the living world.

Highlights
  • Image recognition for plant and animal identification
  • Learn about local species
  • Earn badges for observations
  • Kid-safe and privacy-focused
  • Uses iNaturalist data
Currently charting
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Use the power of image recognition technology to identify the plants and animals all around you. Earn badges for seeing different types of plants, birds, fungi and more! • Get outside and point the Seek Camera at living things • Identify wildlife, plants, and fungi and learn about the organisms all around you • Earn badges for observing different types of species and participating in challenges OPEN THE CAMERA AND START SEEKING! Found a mushroom, flower, or bug, and not sure what it is? Open up the Seek Camera to see if it knows! Drawing from millions of wildlife observations on iNaturalist, Seek shows you lists of commonly recorded insects, birds, plants, amphibians, and more in your area. Scan the environment with the Seek Camera to identify organisms using the tree of life. Add different species to your observations and learn all about them in the process! The more observations you make, the more badges you’ll earn! This is a great app for families who want to spend more time exploring nature together, and for anyone who wants to learn more about the life all around them. KID-SAFE Seek does not require registration and does not collect any user data by default. Some user data will be collected if you choose to sign in with an iNaturalist account, but you must be over 13 or have your parents permission to do so. Seek will ask permission to turn on location services, but your location is obscured to respect your privacy while still allowing species suggestions from your general area. Your precise location is never stored in the app or sent to iNaturalist unless you sign in to your iNaturalist account and submit your observations. Our image recognition technology is based on observations submitted to iNaturalist.org and partner sites, and identified by the iNaturalist community. Seek is part of iNaturalist, a not-for-profit organization. Seek was made by the iNaturalist team with support from the California Academy of Sciences, the National Geographic Society, Our Planet on Netflix, WWF, HHMI Tangled Bank Studios, and Visipedia.

Screenshots

Chronos Notes4 screens
Seek by iNaturalist4 screens

Verdict

The call

The clearest difference is review sentiment: Chronos Notes at 100% against Seek by iNaturalist's 51%. Seek by iNaturalist's advantage is price (Free vs $0.99) and rating (4.8 vs 4.0). On ads, in-app purchases, device support and iOS requirement 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

Seek by iNaturalist is free to download; Chronos Notes costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Seek by iNaturalist holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Seek by iNaturalist has 31K ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 100% of Chronos Notes's written reviews are positive against 51% of Seek by iNaturalist's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Chronos Notes ships an update every 9 months, Seek by iNaturalist every 5 weeks. The most recent releases landed on November 1, 2026 and November 11, 2026 respectively.

Scorecard7 real differences · 4 level
Chronos Notes versus Seek by iNaturalist: the parameters behind the verdict, then further details
ParameterChronos NotesSeek by iNaturalist
Price$0.99Free — better
Rating4.0 (1 ratings)4.8 (31K ratings) — better
Positive reviews100.0% of reviews — better50.8% of reviews
Number of ratings131K — better
Update frequencyEvery 9 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank—#161 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size6 MB218 MB
Age rating4+4+
DeveloperJan-Wouter ArendseniNaturalist

Customer experience

Chronos Notes

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Seek by iNaturalist

All ratings30,908 ratings
Positive94.5%
Neutral2.4%
Negative3.1%
Written reviews1,067 reviews
Positive50.8%
Neutral15.9%
Negative33.3%

Bugs and requests

Chronos Notes

Not enough reviews yet to summarise bugs or requests.

Seek by iNaturalist

Reported bugs

4 issues
  • Camera freezes/crashes
  • Incorrect species identification
  • Observations not saving properly
  • Slow performance on older devices

Requested features

6 requests
  • Allow manual species entry
  • Add option to post observations to iNaturalist later
  • Implement search/sorting for observations
  • Integrate flashlight for low-light conditions
  • Provide feedback/correction options for misidentifications
Show 1 more
  • Sync observations across devices

In-app purchases

None

Chronos Notes

No in-app purchases

None

Seek by iNaturalist

No in-app purchases

Questions

Is Chronos Notes free?
Chronos Notes costs $0.99, with no in-app purchases.
Is Seek by iNaturalist free?
Seek by iNaturalist is free to download, with no in-app purchases.
Which has better reviews, Chronos Notes or Seek by iNaturalist?
Seek by iNaturalist is rated higher. Chronos Notes averages 4.0 out of 5 from 1 ratings, while Seek by iNaturalist averages 4.8 from 31K ratings.
Do Chronos Notes or Seek by iNaturalist have ads?
Neither Chronos Notes nor Seek by iNaturalist shows ads.
Which is updated more often, Chronos Notes or Seek by iNaturalist?
Chronos Notes ships an update every 9 months, and Seek by iNaturalist every 5 weeks. Most recently, Chronos Notes was updated on November 1, 2026 and Seek by iNaturalist on November 11, 2026.

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