Comparison

mathekalk vs Bug Identifier

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

Head to head
About

mathekalk

Features
Read full description

In der App können algebraische Terme, Variablen, Gleichungen und Funktionen interaktiv aufgebaut und algebraisch korrekt umgeformt werden. Zahlen werden durch Kugeln, Variablen und Klammern durch Boxen dargestellt. Ziel ist der Aufbau von Grundvorstellungen im Algebraunterricht.

About

Bug Identifier

Instantly identify insects by taking a photo or uploading an image. Access a vast database with detailed information on thousands of species. Offers a user-friendly interface for quick and accurate insect recognition.

Highlights
  • Instant AI-powered insect identification
  • Identify from photo or camera
  • Extensive database of 7,000+ species
  • Detailed insect information
  • User-friendly interface
  • Ad-free premium experience
Features
Read full description

Do you need to identify an insect accurately and quickly? With Insect ID, it's easier than ever before. Simply take a photo or upload an image of the insect, and receive detailed information with just one tap. Our insect identification is powered by the latest artificial intelligence technology, ensuring the highest accuracy of results. FEATURES - Instantly identify insects from a photo or directly using your camera with a single tap. - Access to an extensive database of insects, featuring around 7,000 species. - Receive detailed information about each identified insect. - Enjoy a user-friendly and intuitive interface for easy navigation. SUBSCRIPTIONS Yearly Premium Duration: 1 year (includes a 3-day free trial) Weekly Premium Duration: 7 days (includes a 3-day free trial) Insect ID Premium offers unlimited insect identifications, expert answers from entomologists, comprehensive insect information, and a completely ad-free experience without any watermarks. - Payment will be charged to your iTunes Account at confirmation of purchase. - Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. - Your account will be charged for renewal within 24 hours prior to the end of the current period, and the cost of the renewal will be identified. - Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription to that publication, where applicable. - You can manage your subscription and turn off auto-renewal by going to your Account Settings after purchase. Terms of Use: https://insectidpro.xyz/terms-of-use Privacy Policy: https://insectidpro.xyz/privacy-policy

Screenshots

mathekalk2 screens
Bug Identifier4 screens

Verdict

The call

The clearest difference is in-app purchases: mathekalk at none against Bug Identifier's 3. Bug Identifier's advantage is update cadence (every 9 days vs every 2 months) and iOS requirement (12.0 vs 17). On price, ads 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. Bug Identifier sells 3 in-app purchases, starting at $4.99 per 7 days. mathekalk asks for nothing beyond the download.

UpkeepUpdate frequency

mathekalk ships an update every 2 months, Bug Identifier every 9 days. Both last shipped on October 24, 2026.

Scorecard3 real differences · 7 level
mathekalk versus Bug Identifier: the parameters behind the verdict, then further details
ParametermathekalkBug Identifier
PriceFreeFree
Rating—4.7 (19 ratings) — better
Positive reviews—50.0% of reviews
Number of ratings—19 — better
Update frequencyEvery 2 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS1712.0 — better
Further details — not scored
Size22 MB63 MB
Age rating4+4+
DeveloperStephan EngelhardAdrian Grotek

In-app purchases

None

mathekalk

No in-app purchases

3 purchases

Bug Identifier

Subscriptions3
  • Weekly Subscription3 Days trial$4.997 Days
  • Weekly Subscription3 Days trial$9.997 Days
  • Annual Subscription3 Days trial$49.991 Year

Questions

Is mathekalk free?
mathekalk is free to download, with no in-app purchases.
Is Bug Identifier free?
Bug Identifier is free to download, with in-app purchases available.
Do mathekalk or Bug Identifier have ads?
Neither mathekalk nor Bug Identifier shows ads.
Which is updated more often, mathekalk or Bug Identifier?
mathekalk ships an update every 2 months, and Bug Identifier every 9 days. Most recently, mathekalk was updated on October 24, 2026 and Bug Identifier on October 24, 2026.

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