Comparison

Rock Identifier vs Start Crypto

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

Head to head
About

Rock Identifier

Instantly identify rocks, minerals, and crystals with a photo. Get detailed information on hardness, formation, and origins. Build a personal digital collection of your geological finds.

Highlights
  • Identify rocks with a photo
  • Detailed rock descriptions
  • Learn about formation and origins
  • Understand Mohs hardness scale
  • Save and collect finds
  • AI that improves over time
Features
Read full description

Found an interesting rock, crystal, or gem? Snap a photo and RockSnap tells you what it is in seconds, with the reasons behind every match. RockSnap is your pocket geologist for hikes, beaches, riverbeds, rock shops, and the classroom. It is built for curious beginners, rockhounds, collectors, students, and teachers. IDENTIFY IN SECONDS - Take a photo or pick one from your library - Get the top 3 matches with a confidence score - See why each match fits: texture, color, grain, and crystal shape - Not sure? Get tips for a better photo and scan again LEARN WHAT YOU FOUND - Hardness on the Mohs scale, color, and composition - How it formed and where it is usually found - Common uses, history, and fun facts - Explanations adapted to your level, from curious beginner to geology pro EXPLORE THE ENCYCLOPEDIA - More than 200 rocks, minerals, and gems - Real photos and articles in your language - Browse igneous, sedimentary, and metamorphic rocks and minerals BUILD YOUR COLLECTION - Save every find with its photo, location on the map, and field notes - Organize finds into folders and subfolders - Scan up to 20 photos at once and compare two rocks side by side - Share beautiful rock cards or save them to Photos ROCKSNAP PRO Unlock unlimited identifications and every tool in the app. Choose the yearly plan, which starts with a free trial, or the weekly plan. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Terms of Use: https://www.termsfeed.com/live/a4cfd828-d0b8-4204-b31c-3340de00cec0 Privacy Policy: https://www.termsfeed.com/live/6891870c-a028-49d5-9e87-e2926056383c

About

Start Crypto

Features
Read full description

Learn Bitcoin, cryptocurrency and blockchain from the ground up. Start Crypto turns unfamiliar terms into short lessons, practical checklists and quizzes for beginners. Start with the basics, then learn how to evaluate a wallet, check a transfer and recognize common crypto scams. No wallet connection or trading account is needed to study. A CLEAR PATH THROUGH 8 CHAPTERS • Bitcoin, crypto assets, supply and value • Blockchain transactions, mining, staking and smart contracts • Wallets, private keys, recovery phrases and custody • Exchanges, order types, fees and transfer networks • Phishing, fake apps, investment scams and token approvals • Market cap, liquidity, volatility and research • Stablecoins, DeFi, NFTs and smart-contract risks • Regulation, record keeping and evaluating sources LEARN, PRACTISE, REMEMBER Read focused lessons with learning objectives, checklists and source links. Test your understanding with multiple-choice and true-or-false quizzes, review answer explanations and track your progress. Earn achievement badges as you complete chapter checks, and find answers in the crypto FAQ. Return to lessons when you need a refresher. Switch between light and dark themes and use the app in your preferred supported language. Previously loaded lessons remain readable when your connection is unavailable; new content needs internet access. ACCESS AND ADS All learning content is available without a purchase. The app contains ads. An optional one-time Remove Ads purchase removes banner, interstitial and app-open ads. Start Crypto is an educational app. It does not provide financial advice, trading signals, an exchange, a wallet or mining services. Cryptocurrency involves risk; learning the concepts does not guarantee investment results.

Screenshots

Rock Identifier4 screens
Start Crypto4 screens

Verdict

The call

The clearest difference is ads: Rock Identifier at none against Start Crypto's shown. Start Crypto's advantage is iOS requirement (15.0 vs 18.0). On price, update cadence, in-app purchases 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 $5.99 per 7 days and Start Crypto sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Rock Identifier ships an update monthly, Start Crypto every 2 months. Both last shipped on November 5, 2026.

Scorecard2 real differences · 7 level
Rock Identifier versus Start Crypto: the parameters behind the verdict, then further details
ParameterRock IdentifierStart Crypto
PriceFreeFree
Rating3.7 (6 ratings) — better—
Number of ratings6 — better—
Update frequencyMonthly — betterEvery 2 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.0 — better
Further details — not scored
Size32 MB45 MB
Age rating4+4+
DeveloperSiham Aater Taleb鲁 黄

In-app purchases

2 purchases

Rock Identifier

Subscriptions2
  • Pro Weekly$5.997 Days
  • Pro Yearly3 Days trial$39.991 Year
1 purchases

Start Crypto

One-time1
  • Remove Ads$1.99

Questions

Is Rock Identifier free?
Rock Identifier is free to download, with in-app purchases available.
Is Start Crypto free?
Start Crypto is free to download, with in-app purchases available.
Do Rock Identifier or Start Crypto have ads?
Start Crypto shows ads; Rock Identifier does not.
Which is updated more often, Rock Identifier or Start Crypto?
Rock Identifier ships an update monthly, and Start Crypto every 2 months. Most recently, Rock Identifier was updated on November 5, 2026 and Start Crypto on November 5, 2026.

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