# Zerroday vs Ammu Mahadevan

The clearest difference is in-app purchases: Ammu Mahadevan at none against Zerroday's 8. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Zerroday sells 5 one-off in-app purchases. Ammu Mahadevan asks for nothing beyond the download.

## The numbers

| Metric | Zerroday | Ammu Mahadevan |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 88.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 days | — |
| Monetization | Free | — |
| Size | 61 MB | 101 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zerroday](https://appshunter.io/developer/1856124924) | [Anuj Gupta](https://appshunter.io/developer/1651060633) |

## What reviewers say

### Zerroday

[App page](https://appshunter.io/ios/app/zerroday/id6755754776)

This app helps users build confidence and discipline by analyzing their responses to market conditions. It provides tools for learning, reflection, and analysis based on psychological patterns, focusing on hypothetical decision-making in a safe, educational environment.

**Highlights:** AI-guided decision reflection, Hypothetical choice recording, Emotional pattern feedback, Live market reference data, Practice mode for safe learning, Learning journal and progress tracking

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pass | $0.99 | one-time |
| Daily Pass | $0.99 | one-time |
| Monthly Plan | $2.99 | one-time |
| Safety Nets Discount | $7.99 | one-time |
| Safety Nets | $9.99 | one-time |


### Ammu Mahadevan

[App page](https://appshunter.io/ios/app/ammu-mahadevan/id6787900993)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Zerroday free?

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

### Is Ammu Mahadevan free?

Ammu Mahadevan is free to download, with no in-app purchases.

### Do Zerroday or Ammu Mahadevan have ads?

Neither Zerroday nor Ammu Mahadevan shows ads.

---

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