Comparison

WhatTheBug vs Caterpillar Identifier-Scan AI

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

Head to head
About

WhatTheBug

Features
Read full description

Ever spotted a creepy crawly and wondered: Is this thing dangerous? WhatTheBug has you covered. Simply take a photo of any insect, spider, or other bug — and WhatTheBug instantly identifies it, tells you whether it poses a threat, and shows you the best ways to eliminate or avoid it. What WhatTheBug can do: • Identify hundreds of common bugs, insects, and spiders • Tell you if the bug is dangerous, venomous, or harmless • Provide clear, actionable advice on how to eliminate or repel it • Works indoors and outdoors — from your home to your garden • Fast results powered by AI — no entomology degree required Perfect for: Homeowners dealing with infestations, hikers and campers, parents worried about their kids, or anyone who just wants to know what's crawling on their wall. No more Googling "is this spider deadly" at 2am. WhatTheBug gives you the answer in seconds. Download WhatTheBug and never be caught off guard by a mystery bug again.

About

Caterpillar Identifier-Scan AI

Instantly identify caterpillars and larvae from a photo using AI. Get detailed insights on species, host plants, behavior, and safety. Explore the hidden world of insects with interactive learning and follow-up questions.

Highlights
  • Instant AI caterpillar identification
  • Detailed species overviews
  • Host plant and habitat information
  • Safety and handling guidance
  • Integrated AI chat for follow-up questions
  • Lifecycle and ecology insights
Features
Read full description

Know Every Backyard Species Discover the fascinating world of caterpillars with fast AI-powered identification and beautifully organized species insights. Caterpillar Identifier-Scan AI helps you instantly identify caterpillars, larvae, and moth species from a single photo. Simply snap a picture or upload an image to receive detailed information about appearance, behavior, habitat, host plants, safety, and lifecycle stages. Built for nature lovers, gardeners, hikers, students, and curious explorers, the app goes beyond simple recognition by helping you actually understand what you found. Features include: • Instant AI caterpillar identification • Detailed species overviews and field marks • Host plants, habitat, and range information • Similar species comparisons • Safety and handling guidance • Lifecycle and ecology insights • Interesting facts and behavioral notes • Context-aware AI chat for follow-up questions Unlike basic scanner apps, Caterpillar Identifier analyzes important visual traits such as color patterns, body structure, hairs, spines, posture, and distinctive markings to improve identification quality and provide more useful results. You can also continue learning through an integrated AI chat connected directly to each identification result. Ask questions about toxicity, garden impact, moth or butterfly stages, feeding habits, or look-alike species — all within the app. Whether you spot a colorful backyard caterpillar or an unusual species on a trail, Caterpillar Identifier makes outdoor discovery more educational, interactive, and fun. Download today and explore the hidden world of caterpillars with confidence. Terms of Use: https://equilibriumra.com/terms-of-use Privacy Policy: https://equilibriumra.com/privacy-policy

Screenshots

WhatTheBug4 screens
Caterpillar Identifier-Scan AI4 screens

Verdict

The call

The clearest difference is iOS requirement: Caterpillar Identifier-Scan AI at 16.0 against WhatTheBug's 26.2. On price, update cadence, ads and in-app purchases 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. WhatTheBug sells 2 in-app purchases, starting at $2.99 per month and Caterpillar Identifier-Scan AI sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

WhatTheBug ships an update every 2 months, Caterpillar Identifier-Scan AI every 5 weeks. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

Scorecard1 real difference · 8 level
WhatTheBug versus Caterpillar Identifier-Scan AI: the parameters behind the verdict, then further details
ParameterWhatTheBugCaterpillar Identifier-Scan AI
PriceFreeFree
Rating—4.5 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.216.0 — better
Further details — not scored
Size5 MB10 MB
Age rating4+4+
DeveloperTomas HustolesRudenko Andrii

In-app purchases

2 purchases

WhatTheBug

Subscriptions1
  • WhatTheBug Pro$2.991 Month
One-time1
  • Unlock This Bug$0.99
2 purchases

Caterpillar Identifier-Scan AI

Subscriptions2
  • Caterpillar Identifier Premium7 Days trial$2.997 Days
  • Caterpillar Identifier Premium7 Days trial$19.991 Year

Questions

Is WhatTheBug free?
WhatTheBug is free to download, with in-app purchases available.
Is Caterpillar Identifier-Scan AI free?
Caterpillar Identifier-Scan AI is free to download, with in-app purchases available.
Do WhatTheBug or Caterpillar Identifier-Scan AI have ads?
Neither WhatTheBug nor Caterpillar Identifier-Scan AI shows ads.
Which is updated more often, WhatTheBug or Caterpillar Identifier-Scan AI?
WhatTheBug ships an update every 2 months, and Caterpillar Identifier-Scan AI every 5 weeks. Most recently, WhatTheBug was updated on October 31, 2026 and Caterpillar Identifier-Scan AI on November 5, 2026.

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