Comparison

Keopi vs FrankenSim

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

Head to head
About

Keopi

Features
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Learn AI. For real. Keopi is a gamified AI literacy app for everyone โ€” kids, teens, and adults. Whether you're curious, confused, or overwhelmed by AI, Keopi gives you the confidence to understand it, use it, and think critically about it. You're going to be great at this. โ€” THREE PILLARS OF AI LITERACY โ€” Keopi teaches through three core pillars: โ€ข Prompting โ€” Communicate with AI clearly and get better results. โ€ข Evaluation โ€” Spot hallucinations, biases, and bad outputs. โ€ข Ethics โ€” Understand the responsibility that comes with using AI. โ€” WHAT'S INSIDE โ€” โ€ข Daily exercises โ€” Five fresh challenges every day, under five minutes. โ€ข AI Sandbox โ€” Practice prompting with real AI in a safe, guided space (teens and adults). โ€ข Deep Dive courses โ€” 26 modules covering Python, Swift, agents, ethics, and more. โ€ข Curated AI news โ€” A daily digest of what's happening in AI, explained simply (teens and adults). โ€ข Streaks, achievements, and living badges โ€” Build a learning habit that sticks. โ€ข On-device AI โ€” Private learning powered by Apple's Foundation Models. โ€” BUILT FOR EVERY AGE โ€” Age-appropriate from day one. Keopi adapts what you see based on your age tier, so kids get a safe introduction, teens get deeper material, and adults get the full experience. โ€” KEOPI PREMIUM (Optional Subscription) โ€” Unlock everything with Keopi Premium: โ€ข Monthly โ€” $4.99 USD / month, auto-renewing โ€ข Yearly โ€” $29.99 USD / year (works out to $2.50 / month โ€” save 50%), auto-renewing Premium unlocks: โ€ข All 26 Deep Dive courses โ€ข Unlimited AI Sandbox conversations โ€ข Streak freezes to protect your progress โ€ข The Master Prompt Engineer badge Or earn free Premium access by collecting all 5 living badges through daily practice โ€” no payment required. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the period, at the displayed price. You can manage or cancel subscriptions in your Apple ID account settings after purchase. โ€” PRIVACY FIRST โ€” Keopi is built with privacy as a foundation: โ€ข No personal information collected from children under 13 โ€ข Learning progress stays on your device โ€ข No third-party analytics or advertising โ€ข No cookies, no tracking, no data sold โ€ข COPPA-compliant by design โ€” LINKS โ€” Terms of Use (EULA): https://keopi.xyz/terms Privacy Policy: https://keopi.xyz/privacy Support: support@keopi.xyz Made with care. You're going to be great at this.

About

FrankenSim

Features
Read full description

Carry a working numerical laboratory on your iPhone, iPad, or Mac. FrankenSim contains forty-three native experiments drawn from the FrankenSim Rust workspace. Each one runs a real local kernel and pairs the result with an interactive visualization and a concise account of what was computed. Explore heat diffusion, spectral waves, Lorenz dynamics, Gray-Scott reaction diffusion, fluid flow, smoke, topology optimization, signed-distance geometry, isosurfaces, Gaussian-process optimization, randomized linear algebra, symplectic orbits, computational geometry, interval-certified fractals, and more. The library is organized from foundations through deep experiments, end-to-end campaigns, and three larger flagships. Evidence labels distinguish a computed result from an illustration, approximation, bound, or certified conclusion. The theory atlas explains the equations and numerical ideas behind the displays. Every experiment runs on the device. FrankenSim has no account, advertising, tracking, cloud compute, or required network connection.

Screenshots

Keopi4 screens
FrankenSim3 screens

Verdict

The call

The clearest difference is in-app purchases: FrankenSim at none against Keopi's 3. FrankenSim also leads on iOS requirement (17.0 vs 26.2). On price, ads and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Keopi sells 3 in-app purchases, starting at $4.99 per month. FrankenSim asks for nothing beyond the download.

Scorecard2 real differences ยท 4 level
Keopi versus FrankenSim: the parameters behind the verdict, then further details
ParameterKeopiFrankenSim
PriceFreeFree
Update frequencyEvery 2 monthsโ€”
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhone, iPadiPhone, iPad, Mac โ€” better
Requires iOS26.217.0 โ€” better
Further details โ€” not scored
Size6 MB11 MB
Age rating4+4+
DeveloperFrancisco RodriguezJeffrey Emanuel

In-app purchases

3 purchases

Keopi

Subscriptions2
  • Keopi Premium Monthly$4.991 Month
  • Yearly Premium$29.991 Year
One-time1
  • Streak Freeze 3-Pack$0.99
None

FrankenSim

No in-app purchases

Questions

Is Keopi free?
Keopi is free to download, with in-app purchases available.
Is FrankenSim free?
FrankenSim is free to download, with no in-app purchases.
Do Keopi or FrankenSim have ads?
Neither Keopi nor FrankenSim shows ads.

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