Leps by Fieldguide

Name: Leps by Fieldguide
Rating: 4.3 (25 reviews)
Author: Change Theory

By: Change Theory

LepSnap

Features & Capabilities

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

User Growth & Download Statistics

App

By:

Change Theory

Rating:

4.30

(25)

Version:

1.4.11 Last updated: 2020-04-29

Version code:

835738560

Creation date:

2017-07-01

Compatible devices:

Size:

62.12MB

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-10

Compare stats and ranking:

Ranking

# 264,864 ▼ 646

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

Change Theory

Apple Apps Store

https://apps.apple.com/us/app/leps-by-fieldguide/id1167114017

Website:

http://lepsnap.org

User Reviews

Leps by Fieldguide excels in moth and butterfly identification with a strong algorithm, intuitive UI, and useful features for logging, learning, and sharing photos. It’s praised by both beginners and experts and is backed by ongoing updates. Common drawbacks across reviews include onboarding friction and signup/login issues, limited built-in social features (no messaging), uneven regional coverage, and some intermittent issues with iNaturalist syncing and occasional minor bugs. Overall, the app is highly capable but could improve onboarding flow, social functionality, and global reach.

Pros

Very high accuracy ID abilities and a powerful identification algorithm
Intuitive, smooth, well-designed UI that is easy to learn
Comprehensive features for identifying, logging, and discovering moths and butterflies (including uploading photos and viewing others)
Appeals to both beginners and experts and supports learning about Lepidoptera
Active development with frequent updates and improvements

Cons

Onboarding/login friction: immediate login prompt or signup issues on some devices
Unclear or unreliable iNaturalist synchronization (may be inconsistent or phased out)
Lack of built-in social features (no messaging or conversations between users)
Geographic coverage is limited (difficult to add moths/butterflies from certain regions)
Occasional bugs or polish issues (e.g., sign-up UI bugs, minor navigation glitches)

Recent reviews

recommend to my friend

by L4*****, 2026-05-04

I love the features of this app, It took a few minutes to navigate but once I figured it out it was very easy to work. I think that there should be a way to message other users and create conversations about moths, it would be nice to talk about my passion with other people who share it! Other than the lack of community it’s a pretty good app, it could be a bit more polished but overall I would give it a 4/5. It’s the only app like it out there so it will do :))

by Sa*****, 2022-03-03

This app does exactly what it says and does it well, plus adding your photo to the field guide is fun, as is viewing the photos of others. This is the real deal. I tried other apps that couldn’t correctly identify a clear photo of a Pearl Crescent Butterfly and still had the audacity to hound you to buy their premium version. Don’t waste your time with other apps; stick with Leps. bit.ly/PearlCrescentButterfly