Comparison

Rock Identifier vs Learn with Halo

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

Head to head
About

Rock Identifier

Features
Read full description

Found a rock, crystal or gemstone and wondering what it is? Snap a photo and Stonectra's AI identifies it, then shows you what it's made of, where it forms and what it may be worth. Built for rockhounds, collectors, students and curious explorers, Stonectra turns your iPhone into a pocket geology guide. IDENTIFY FROM A PHOTO • Take a picture or upload one from your gallery • Identify rocks, minerals, crystals, stones and gemstones • Get the name and a clear overview of your specimen KNOW YOUR STONE Every result opens a detailed profile: • Physical properties: crystal system, color, luster, streak, Mohs hardness, cleavage, fracture and more • Chemical properties: classification, formula and density • Occurrence: the geological settings where it forms, such as veins, pegmatites or geodes • Uses and history in industry, jewelry and collecting • Care tips plus health and safety notes for handling ESTIMATE ITS VALUE See estimated price ranges for selected gems, minerals and crystals, and use the built-in Price Calculator to estimate value by weight. Estimates are for informational purposes only and vary with quality, size, rarity, origin and market demand. ASK THE AI STONE ASSISTANT Chat about geology, minerals, crystals and rockhounding anytime: • "How can I tell ruby from garnet?" • "How and where does aquamarine form?" • "What does Mohs hardness mean?" • "How do I start a rock collection?" BUILD YOUR COLLECTION Save your finds to a personal digital collection, organize your specimens and keep a Favorites list of stones you love or want to find next. iCloud Sync keeps your collection backed up across your devices. GREAT FOR • Rockhounds identifying finds from hikes, rivers and beaches • Collectors cataloging and valuing specimens • Students learning earth science and mineralogy • Anyone curious about the stones beneath their feet Download Stonectra and find out what you found. Privacy Policy: https://thebariscc.github.io/Stonectra/PrivacyPolicy.html Terms & Conditions: https://thebariscc.github.io/Stonectra/TermsAndConditions.html Support: https://thebariscc.github.io/Stonectra/Support.html

About

Learn with Halo

This AI-powered study companion transforms your own course materials into a personalized tutor. It offers step-by-step guidance, adaptive practice, and learning memory to help students in grades 4-12 and college understand complex topics deeply. Learn from your textbooks without ads or data sharing.

Highlights
  • AI Tutor for homework help
  • Learn from your own textbooks (PDFs)
  • Socratic method for deep understanding
  • Adaptive daily practice problems
  • Multi-day learning plans
  • Learning memory to track progress
  • Ad-free and privacy-focused
Features
Read full description

Meet Halo: Your Personal AI Learning Companion Struggling with homework? Need help understanding your textbook? Halo transforms your own course materials into a 24/7 AI tutor that knows exactly what you're studying. LEARN FROM YOUR OWN TEXTBOOKS Unlike other tutoring apps, Halo works with YOUR curriculum. Upload your textbooks (PDFs) and get personalized help based on what you're actually learning in class. SOCRATIC METHOD: LEARN, DON’T JUST GET ANSWERS Halo guides you step-by-step to understand concepts deeply. Ask any question and Halo helps you discover the answer through thoughtful questions and hints — just like a real tutor would. SMART FEATURES FOR REAL LEARNING - AI Tutor (Ask Halo) Get instant help with homework, concepts, or practice problems - Adaptive Warm-Ups Daily practice problems tailored to your level - Multi-Day Learning Plans Break complex topics into manageable study sessions - Learning Memory Halo remembers your progress across all sessions - Step-by-Step Guidance Never get stuck — hints and worked examples when you need them SUBJECTS & GRADE LEVELS Perfect for students in grades 4–12 and college. Works with any subject that has a textbook, including: Math, Science, English, History, and more. PRIVACY-FIRST & AD-FREE Your learning is personal. Halo never shares your data, shows ads, or sells information. FREE TO START - Free Plan Upload 2 textbooks + limited Ask Halo questions - Premium Plan Unlimited textbooks + unlimited AI tutoring

Screenshots

Rock Identifier4 screens
Learn with Halo4 screens

Verdict

The call

The clearest difference is in-app purchases: Learn with Halo at none against Rock Identifier's 2. Learn with Halo also leads on update cadence (every 3 days vs every 6 weeks). Rock Identifier's advantage is iOS requirement (17.0 vs 26.2). 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. Rock Identifier sells 2 in-app purchases, starting at $3.99 per 7 days. Learn with Halo asks for nothing beyond the download.

UpkeepUpdate frequency

Rock Identifier ships an update every 6 weeks, Learn with Halo every 3 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 6 level
Rock Identifier versus Learn with Halo: the parameters behind the verdict, then further details
ParameterRock IdentifierLearn with Halo
PriceFreeFree
Rating—5.0 (3 ratings) — better
Number of ratings—3 — better
Update frequencyEvery 6 weeksEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Freemium
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS17.0 — better26.2
Further details — not scored
Size29 MB65 MB
Age rating4+4+
DeveloperBaris Can CeylanGratitude First Farms, LLC

In-app purchases

2 purchases

Rock Identifier

Subscriptions2
  • Weekly Pro3 Days trial$3.997 Days
  • Annual Pro (SAVE %80)$39.991 Year
None

Learn with Halo

No in-app purchases

Questions

Is Rock Identifier free?
Rock Identifier is free to download, with in-app purchases available.
Is Learn with Halo free?
Learn with Halo is free to download, with no in-app purchases.
Do Rock Identifier or Learn with Halo have ads?
Neither Rock Identifier nor Learn with Halo shows ads.
Which is updated more often, Rock Identifier or Learn with Halo?
Rock Identifier ships an update every 6 weeks, and Learn with Halo every 3 days. Most recently, Rock Identifier was updated on October 30, 2026 and Learn with Halo on October 31, 2026.

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