Comparison

Probability Sim vs RandomKit

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

Head to head

Probability Sim

Odds Calculator for 1T Trials

About

Probability Sim

Features

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Probability Simulator 1T Trials is a powerful simulation app that lets you test probabilities to the extreme. Run up to 1 trillion trials and calculate probabilities as low as 1 in a trillion. Choose from decimal, percentage, or fraction notation. Simultaneously run multiple probability events for complex calculations. Perfect for statistics enthusiasts, mathematicians, and anyone interested in random trials. Sharpen your probability intuition and gain real insights from large-scale simulations.

About

RandomKit

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RandomKit gives you all the random tools you need: roll dice, flip coins, pick numbers, generate colors, create passwords, and get a quick Yes or No.

Screenshots

Probability Sim2 screens

Verdict

The call

The clearest difference is in-app purchases: RandomKit at none against Probability Sim's 2. Probability Sim's advantage is device support and iOS requirement (15.0 vs 17.0). On price 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. Probability Sim sells 2 in-app purchases, starting at $4.99 per month. RandomKit asks for nothing beyond the download.

Scorecard3 real differences · 3 level

Probability Sim versus RandomKit: the parameters behind the verdict, then further details
Parameter	Probability Sim	RandomKit
Price	Free	Free
Update frequency	Every 10 months	—
Ads	Yes	—
In-app purchases	Yes	No — better
Devices	iPhone, iPad, iPod — better	—
Requires iOS	15.0 — better	17.0
Further details — not scored
Size	29 MB	3 MB
Age rating	4+	4+
Developer	kota tada	Stefan Stammbach