Lenz vs PetSkinAI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lenz
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You’ve been together long enough to know how it goes. A good stretch, then a question about where this is heading, then a few cold days, then everything’s fine again — and nothing is ever decided. Lenz reads your chat history and shows you the pattern. Not one conversation, but what repeats across months. WHAT THE REPORT SHOWS • The recurring moments — when the same subject comes up, and what happens each time • His intentions — what he commits to, what he leaves open, where he changes the subject • Who carries the emotional weight — who opens the hard conversations, who responds • How the tone has shifted — month by month, not just lately • What it can’t know — Lenz tells you where the messages alone aren’t enough The report is where it starts. From there you can go deeper on any part of it — or ask your own question about the same chat. HOW IT WORKS 1. Export your chat from WhatsApp or Telegram 2. Open it in Lenz 3. Get a detailed AI report in about 30 seconds Works with WhatsApp, Telegram, and other messengers. A year of messages is fine — the longer the history, the clearer the pattern. YOUR PRIVACY COMES FIRST • Your messages are analyzed and immediately deleted — nothing is stored • Chats are processed anonymously — we can’t see who you’re talking to • Sign in with Apple — no email or password shared • Delete your account anytime — all data permanently erased Lenz is not professional relationship advice. AI analyzes text patterns only.
PetSkinAI
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Check your pet's skin with just one photo. AI analyzes the skin condition of your dog or cat. Reliable AI analysis trained on the official Korea AI Hub dataset. • Easy to Use Take a photo of the affected area, and the AI will analyze 6 categories of skin conditions. No complex setup—just one photo is all you need. • Supports Both Dogs and Cats Analysis based on learning data covering 6 skin conditions in dogs and 4 in cats. Whatever pet you have, you can care for them. • 6 Skin Condition Categories Analyzed by AI - Papules / Plaques - Lichenification / Hyperpigmentation - Erosion / Ulcer - Scaling / Dandruff - Pustules / Acne - Nodules / Masses • Results at a Glance Confidence level, urgency, condition description, key symptoms, causes, home care, and when to visit a vet—all in one screen. • Disease Library Detailed explanations of the 6 skin conditions analyzed by AI. Learn ahead to provide better care. • Analysis History Save past analysis results on your device to track changes over time. Use them as reference when visiting the veterinarian. • Privacy First AI analysis runs entirely on your device. Photos are never transmitted to external servers—they stay on your device only. • Backed by Trusted Data Powered by an AI model trained on the official Companion Animal Skin Disease Dataset from Korea's National Information Society Agency (NIA) AI Hub—250,000+ skin condition images from 10,000+ pets. ------------------------------ • Important Notice This app does not replace veterinary care. AI analysis results are for reference only. Actual diagnosis and treatment must be performed through direct examination by a veterinarian. In emergencies (severe bleeding, difficulty breathing, etc.), do not wait for the app's results—go to a veterinary clinic immediately. ------------------------------ For questions, please use the in-app Menu > Contact.
Screenshots
Verdict
The clearest difference is in-app purchases: PetSkinAI at none against Lenz's 3. PetSkinAI also leads on update cadence (weekly vs fortnightly). Lenz's advantage is ads (none vs shown). On price, device support and iOS requirement 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
Both are free to download. Lenz sells 3 one-off in-app purchases. PetSkinAI asks for nothing beyond the download.
Lenz ships an update fortnightly, PetSkinAI weekly. Both last shipped on October 31, 2026.
| Parameter | Lenz | PetSkinAI |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Devices | iPhone | iPhone |
| Requires iOS | 18.0 | 17.6 — better |
| Further details — not scored | ||
| Size | 53 MB | 53 MB |
| Age rating | 17+ | 12+ |
| Developer | Evgenii Kurnosov | MyungHwan Geum |
In-app purchases
Lenz
- 1 Report$1.99
- 5 Reports$5.99
- 15 Reports$14.99
PetSkinAI
No in-app purchases









