Probability vs Passify
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Probability
Enhance your decision-making skills by learning to assess probabilities with this app. It offers formulas for problem-solving, note-taking capabilities, and interactive tools like dice and coin tosses for practical learning.
- Probability assessment
- Decision-making improvement
- Problem-solving formulas
- Personalized notes
- Dice and coin toss simulations
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Probability is the key to making decisions under uncertainty, and with our app, you can improve your ability to assess probabilities and make better decisions in life. Our app includes different formulas to help you solve problems and make decisions, as well as the option to take references and write down your own notes about probability. Plus, you can have fun with probability by tossing dice and coins.
Passify
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Generate wallet passes offline using Passify - no server needed. Build passes with interactive preview. Data stays on device.
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Verdict
The clearest difference is update cadence: Probability at every 10 days against Passify's monthly. Probability also leads on iOS requirement (14.0 vs 18.0). On price, ads, 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
Both are free to download. Probability sells 1 one-off in-app purchase and Passify sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Probability ships an update every 10 days, Passify monthly. The most recent releases landed on October 23, 2026 and October 15, 2026 respectively.
| Parameter | Probability | Passify |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 10 days — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 14.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 166 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Man Hung Sun | Blank Cheque Tech Inc. |
In-app purchases
Probability
- Upgrade$0.99
Passify
- 1 Token$0.29
- 5 Tokens$1.95
- 10 Tokens$2.99
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- 20 Tokens$3.99
- Custom Signing$9.99
Questions
Is Probability free?
Is Passify free?
Do Probability or Passify have ads?
Which is updated more often, Probability or Passify?
Other comparisons
