Comparison

Bitcoin Sim vs Kaft Pay

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

Head to head
About

Bitcoin Sim

Features
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Explore hypothetical Bitcoin price and portfolio scenarios with customisable Monte Carlo simulations. Set your assumptions, run a simulation and explore the possible outcomes in tables, charts and plain-English insights. • Shape your scenario with growth, volatility, time-period and model settings. • Model an initial investment, regular contributions, fees and withdrawals. • Explore Bitcoin prices, holdings and portfolio values through time. • Zoom and pan interactive charts, and switch between Bitcoin price and portfolio value. • Compare scenarios with a repeatable random seed and explore advanced model settings. • Follow the guided setup and reopen the Quick Guide whenever you need help. • Use adaptive layouts on iPhone and iPad, including iPhone Duo tabletop charts and a live Bitcoin display. Bitcoin Sim is a paid-upfront app. Simulations and advanced settings are included, with no additional in-app purchase required. Simulation outcomes depend on the assumptions you choose. They are hypothetical possibilities, not forecasts or investment advice. Bitcoin Sim does not provide trading, brokerage or wallet services.

About

Kaft Pay

Features
Read full description

KaftPay бизнесларга онлайн тўловларни қабул қилиш, бошқариш ва мониторинг қилиш учун замонавий платформани тақдим этади. Барча асосий тўлов тизимлари билан ишланг ва тўлов жараёнларини битта платформада бошқаринг

Screenshots

Bitcoin Sim4 screens
Kaft Pay4 screens

Verdict

The call

The clearest difference is price: Kaft Pay at Free against Bitcoin Sim's $0.99. Kaft Pay also leads on in-app purchases (none vs 2) and iOS requirement (15.1 vs 18.0). On update cadence, 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

Kaft Pay is free to download; Bitcoin Sim costs $0.99 up front. Bitcoin Sim sells 2 one-off in-app purchases. Kaft Pay asks for nothing beyond the download.

UpkeepUpdate frequency

Bitcoin Sim ships an update every 5 days, Kaft Pay weekly. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 3 level
Bitcoin Sim versus Kaft Pay: the parameters behind the verdict, then further details
ParameterBitcoin SimKaft Pay
Price$0.99Free — better
Update frequencyEvery 5 days — betterWeekly
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.1 — better
Further details — not scored
Size8 MB70 MB
Age rating4+4+
DeveloperConor NolanKAFTPAY, MCHJ

In-app purchases

2 purchases

Bitcoin Sim

One-time2
  • 25 Simulation Credits$0.99
  • Pro – Unlimited • 11× Faster$7.99
None

Kaft Pay

No in-app purchases

Questions

Is Bitcoin Sim free?
Bitcoin Sim costs $0.99, and also offers in-app purchases.
Is Kaft Pay free?
Kaft Pay is free to download, with no in-app purchases.
Do Bitcoin Sim or Kaft Pay have ads?
Neither Bitcoin Sim nor Kaft Pay shows ads.
Which is updated more often, Bitcoin Sim or Kaft Pay?
Bitcoin Sim ships an update every 5 days, and Kaft Pay weekly. Most recently, Bitcoin Sim was updated on October 28, 2026 and Kaft Pay on October 24, 2026.

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