Comparison

Leps by Fieldguide 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

Leps by Fieldguide

This app helps identify moths and butterflies from photos, records your observations, and connects you with other enthusiasts. It builds a dynamic checklist of your findings and allows you to share your collection data with the community.

Highlights
  • Photo-based species identification
  • Automatic observation checklist updates
  • Collection data sharing
  • Connect with other enthusiasts
  • Publish photos online
Features
Read full description

Fieldguide.ai is to the pocket field guide, what Wikipedia is to the encyclopedia—a crowd-sourced compendium of all natural and cultural things. "Leps" is Fieldguide's dedicated ID assistant and community for lep lovers (Lepidoptera: moths & butterflies). Use Leps to: Identify species ~ Leps analyzes your moth/butterfly photos to suggest possible IDs that can be later verified by the Fieldguide community. Record your observations ~ Leps arranges your observations into a dynamic checklist. When taxonomic treatments change, your records update automatically. Showcase your collection ~ Sharing collection data builds a richer picture of Lepidoptera morphology, phenology, and distribution. Connect with enthusiasts ~ Follow people who share your curiosity and interests. You can also publish your lep photos on the web: https://leps.fieldguide.ai

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

Leps by Fieldguide4 screens
Bug Identifier4 screens

Verdict

The call

The clearest difference is in-app purchases: Leps by Fieldguide at none against Bug Identifier's 3. Leps by Fieldguide also leads on review sentiment (82% vs 50%) and iOS requirement (9.0 vs 12.0). Bug Identifier's advantage is rating (4.7 vs 4.3) and update cadence (every 9 days vs every 4 weeks). On price, ratings volume, 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. Leps by Fieldguide asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Bug Identifier holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 24 and 19 respectively. Written reviews complicate that: 82% of Leps by Fieldguide's written reviews are positive against 50% of Bug Identifier's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Leps by Fieldguide ships an update every 4 weeks, Bug Identifier every 9 days. Both last shipped on October 24, 2026.

Scorecard6 real differences · 4 level
Leps by Fieldguide versus Bug Identifier: the parameters behind the verdict, then further details
ParameterLeps by FieldguideBug Identifier
PriceFreeFree
Rating4.3 (24 ratings)4.7 (19 ratings) — better
Positive reviews82.4% of reviews — better50.0% of reviews
Number of ratings24 — better19
Update frequencyEvery 4 weeksEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS9.0 — better12.0
Further details — not scored
Size62 MB63 MB
Age rating4+4+
DeveloperChange Theory CorpAdrian Grotek

Customer experience

Leps by Fieldguide

All ratings23 ratings
Positive82.6%
Neutral4.3%
Negative13.0%
Written reviews17 reviews
Positive82.4%
Neutral5.9%
Negative11.8%

Bug Identifier

All ratings11 ratings
Positive90.9%
Neutral0.0%
Negative9.1%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Leps by Fieldguide

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 Leps by Fieldguide free?
Leps by Fieldguide is free to download, with no in-app purchases.
Is Bug Identifier free?
Bug Identifier is free to download, with in-app purchases available.
Which has better reviews, Leps by Fieldguide or Bug Identifier?
Bug Identifier is rated higher. Leps by Fieldguide averages 4.3 out of 5 from 24 ratings, while Bug Identifier averages 4.7 from 19 ratings.
Do Leps by Fieldguide or Bug Identifier have ads?
Neither Leps by Fieldguide nor Bug Identifier shows ads.
Which is updated more often, Leps by Fieldguide or Bug Identifier?
Leps by Fieldguide ships an update every 4 weeks, and Bug Identifier every 9 days. Most recently, Leps by Fieldguide was updated on October 24, 2026 and Bug Identifier on October 24, 2026.

Other comparisons