# DAD Probability Calculator vs Holdem Note

The clearest difference is in-app purchases: DAD Probability Calculator at none against Holdem Note's 7. DAD Probability Calculator also leads on iOS requirement (13.0 vs 17.0). Holdem Note's advantage is update cadence (daily vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Holdem Note sells 7 one-off in-app purchases. DAD Probability Calculator asks for nothing beyond the download.

DAD Probability Calculator ships an update every 3 months, Holdem Note daily. The most recent releases landed on September 18, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | DAD Probability Calculator | Holdem Note |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Daily** |
| Size | 17 MB | 12 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [SUPARAIN,Inc.](https://appshunter.io/developer/1800793239) | [TAEHYUNG GOO](https://appshunter.io/developer/1896464813) |

## What reviewers say

### DAD Probability Calculator

[App page](https://appshunter.io/ios/app/dad-probability-calculator/id6756759185)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Holdem Note

[App page](https://appshunter.io/ios/app/holdem-note/id6775555809)

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Credit 20 | $1.49 | one-time |
| AI Credit Starter 120 | $3.49 | one-time |
| AI Credit 80 | $3.49 | one-time |
| AI Credit 300 | $7.99 | one-time |
| PRO Lifetime Unlock | $8.49 | one-time |
| AI Credit 1,000 | $21.99 | one-time |
| AI Credit 1,800 | $36.99 | one-time |


## Frequently asked questions

### Is DAD Probability Calculator free?

DAD Probability Calculator is free to download, with no in-app purchases.

### Is Holdem Note free?

Holdem Note is free to download, with in-app purchases available.

### Do DAD Probability Calculator or Holdem Note have ads?

Neither DAD Probability Calculator nor Holdem Note shows ads.

### Which is updated more often, DAD Probability Calculator or Holdem Note?

DAD Probability Calculator ships an update every 3 months, and Holdem Note daily. Most recently, DAD Probability Calculator was updated on September 18, 2026 and Holdem Note on September 8, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*