Comparison

CT for Open Community vs Crystal Identifier Rock guide

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

Head to head
About

CT for Open Community

Features
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Organize your classroom with classteam ! Everything from your classroom is now in your pocket. Create & Share lecture notes, documents, events, discuss the subjects with your friends, be updated with the latest news from your field of study, and much more! 1. Board Want to share something with your class? You have the classboard for it. Write it on the classboard and it will be displayed for your classmates. You can also view what your friends write on the board. 2. Timetable Organize your class schedule and share it with your classmates with the β€˜TimeTable’ feature. Add the lecture schedules and other details easily to the timetable 3. Notes Jotted some notes while attending the class? You can save it and refer later. Create the lecture notes for each subject and save them. Your notes will be available for your classmates and you can access their notes 4. Documents Want to share some class documents? Be it subject pdfs, circulars, schedules, or any common class documents, share it in pdf or word format easily with your classmates. 5. Events Create events and display it in the class calendar. Never miss fests, class seminars, club events, etc. You can display the details in the class calendar so everyone can view it and plan 6. Curriculum Add or Access the university curriculum and subject topics in your classteam classroom. Plan lectures, discussions accordingly. Share the study materials and be updated on your curriculum. 7. University/Board Templates Get updates regularly, Receive regular notifications about your Classroom activities, University/Board updates, and more

About

Crystal Identifier Rock guide

Features
Read full description

Crystal Identifier is an AI-powered app designed to identify fish species with ease. Simply snap a photo or upload an image of the fish, and the app uses advanced machine learning algorithms to analyze and compare it to a comprehensive database of fish species. Crystal Identifier quickly provides an accurate identification, along with detailed information about each species. Perfect for anglers, marine biologists, and fish enthusiasts, this app makes discovering and learning about underwater life accessible and engaging. Privacy Policy: https://elegant-gazelle-ca9.notion.site/Privacy-Policy-10c634d4c40680a4a91ef533b14cb26d?pvs=74 Terms of Use: https://elegant-gazelle-ca9.notion.site/Terms-Conditions-10c634d4c40680e7b682ff9bdd86b03d?pvs=74

Screenshots

CT for Open Community3 screens
Crystal Identifier Rock guide3 screens

Verdict

The call

The clearest difference is in-app purchases: CT for Open Community at none against Crystal Identifier Rock guide's 2. CT for Open Community also leads on update cadence (every 3 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Crystal Identifier Rock guide sells 2 in-app purchases, starting at $4.99 per 7 days. CT for Open Community asks for nothing beyond the download.

UpkeepUpdate frequency

CT for Open Community ships an update every 3 weeks, Crystal Identifier Rock guide every 3 months. The most recent releases landed on November 11, 2026 and November 8, 2026 respectively.

Scorecard2 real differences Β· 4 level
CT for Open Community versus Crystal Identifier Rock guide: the parameters behind the verdict, then further details
ParameterCT for Open CommunityCrystal Identifier Rock guide
PriceFreeFree
Update frequencyEvery 3 weeks β€” betterEvery 3 months
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details β€” not scored
Size72 MB34 MB
Age rating4+4+
DeveloperLookings Soft Pvt.LtdSemen Sharyhin

In-app purchases

None

CT for Open Community

No in-app purchases

2 purchases

Crystal Identifier Rock guide

Subscriptions2
  • Crystal Identifier Weekly3 Days trial$4.997 Days
  • Crystal Identifier Yearly$24.991 Year

Questions

Is CT for Open Community free?
CT for Open Community is free to download, with no in-app purchases.
Is Crystal Identifier Rock guide free?
Crystal Identifier Rock guide is free to download, with in-app purchases available.
Do CT for Open Community or Crystal Identifier Rock guide have ads?
Neither CT for Open Community nor Crystal Identifier Rock guide shows ads.
Which is updated more often, CT for Open Community or Crystal Identifier Rock guide?
CT for Open Community ships an update every 3 weeks, and Crystal Identifier Rock guide every 3 months. Most recently, CT for Open Community was updated on November 11, 2026 and Crystal Identifier Rock guide on November 8, 2026.

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