Comparison

QuizClient vs Crystal Identifier

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

Head to head
About

QuizClient

Features
Read full description

Play quizzes with friends on your local Wi-Fi! One device controls the quiz while participants answer from their phones. Show photos, videos and music on TV for the perfect quiz atmosphere. More details: - Local Wi-Fi Quiz for family, friends and events - Create your own quiz and play it live with friends and family! - One device acts as QuizMaster (QM), while participants answer from their own phones/iPads. - Everyone can now participate! Perfect for: - Family parties - Friends' evenings - Classrooms - Pub Quiz - Events NB! The network must be open for communication between devices! If not, use an old router or shared internet,(Hotspot)! How it works: QM starts a quiz from an iPhone or iPad. (Connected to a TV/big screen!) Participants with any smartphone or tablet can open their QuizClient and connect to QuizServer over the same Wi-Fi by enter an alias and press Join. The questions appear on the participants screens and must be answered in one of two ways or both: 1. Choosing between 4 answer options. 2. Entering the answer using the keyboard. Make your quiz even better with TV/big screen! QuizServer can be connected to a TV via AirPlay or HDMI and a new, nice screen shows up. The TV will display: - Images - Video - Music playing on your TV or Stereo. - Quiz information on the big screen – perfect for a real quiz atmosphere! - QM can create complete quizzes in just a few minutes. - QM can pick questions from any Quiz and create a new one from them! - QM can also merge multiple Quizzes or all Quizzes in seconds! - QM can also read out random questions that participants must answer in writing! Features: - Play on your local Wi-Fi. - Support for images, audio and video - 4-choice questions or free text answers - Create your own quizzes directly in the app - Perfect for TV viewing - Quick and easy to use - Have fun while you learn! - Challenge your friends and family – and see who is the quiz master!

About

Crystal Identifier

Read full description

Unearth the secrets of stones with StoneClip, the smartest way to identify and learn about rocks, gems, and minerals using cutting-edge AI. Whether you’re out exploring or browsing your photo library, StoneClip gives you instant, accurate results—and so much more. Key Features: Snap or Select for Instant ID -> Take a photo or choose one from your gallery—StoneClip instantly analyzes and identifies your rock with powerful AI. In-Depth Rock Descriptions -> Learn more than just a name. Get rich, detailed explanations about your identified stones, including type, composition, and fun facts. Ask Follow-Up Questions -> Curious about what makes a stone rare, where it’s found, or how it formed? Just ask! StoneClip’s AI is ready to answer your questions. Keep Track with History -> Never lose a discovery. View all your past identifications and even ask new questions about previous finds in the History panel. Privacy-First Design -> Your data is your business. StoneClip only collects what’s necessary to function—nothing more. Whether you’re a rock collector, geology student, or just love learning about the natural world, StoneClip is your perfect field companion. Download StoneClip today to harness the power of AI to identify any rock, gem, or jewel. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://thedesignprostudios.com/privacy-policy-stoneclip

Screenshots

QuizClient4 screens
Crystal Identifier3 screens

Verdict

The call

The clearest difference is in-app purchases: QuizClient at none against Crystal Identifier's 2. Crystal Identifier's advantage is update cadence (every 5 days vs every 3 weeks). On price, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Crystal Identifier sells 2 in-app purchases, starting at $4.99 per 7 days. QuizClient asks for nothing beyond the download.

UpkeepUpdate frequency

QuizClient ships an update every 3 weeks, Crystal Identifier every 5 days. The most recent releases landed on October 12, 2026 and October 8, 2026 respectively.

Scorecard2 real differences · 4 level
QuizClient versus Crystal Identifier: the parameters behind the verdict, then further details
ParameterQuizClientCrystal Identifier
PriceFreeFree
Update frequencyEvery 3 weeksEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better16.6
Further details — not scored
Size16 MB6 MB
Age rating+44+
DeveloperVigleik Steinar VollCurvachip LLC

In-app purchases

None

QuizClient

No in-app purchases

2 purchases

Crystal Identifier

Subscriptions2
  • StoneClip Premium Weekly3 Days trial$4.997 Days
  • StoneClip Premium Yearly$24.991 Year

Questions

Is QuizClient free?
QuizClient is free to download, with no in-app purchases.
Is Crystal Identifier free?
Crystal Identifier is free to download, with in-app purchases available.
Do QuizClient or Crystal Identifier have ads?
Neither QuizClient nor Crystal Identifier shows ads.
Which is updated more often, QuizClient or Crystal Identifier?
QuizClient ships an update every 3 weeks, and Crystal Identifier every 5 days. Most recently, QuizClient was updated on October 12, 2026 and Crystal Identifier on October 8, 2026.

Other comparisons