# PilotAssist vs ZeroDay Dev

The clearest difference is in-app purchases: PilotAssist at none against ZeroDay Dev's 1. PilotAssist also leads on rating (5.0 vs 4.8). ZeroDay Dev's advantage is update cadence (weekly vs every 20 months) and ratings volume (4 vs 1). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. ZeroDay Dev sells 1 one-off in-app purchase. PilotAssist asks for nothing beyond the download.

PilotAssist holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

PilotAssist ships an update every 20 months, ZeroDay Dev weekly. The most recent releases landed on October 2, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | PilotAssist | ZeroDay Dev |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pilotassist/id6642684166/reviews)** | [4.8 (4 ratings)](https://appshunter.io/ios/app/zeroday-dev/id6760129673/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 20 months | **Weekly** |
| Monetization | Free | Free |
| Size | 1 MB | 80 MB |
| Requires iOS | 17.2 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Kelly Gayneaux](https://appshunter.io/developer/1082576429) | [John Lawniczak](https://appshunter.io/developer/1882793043) |

## What reviewers say

### PilotAssist

[App page](https://appshunter.io/ios/app/pilotassist/id6642684166)

This app provides essential aviation calculations and references for student and everyday pilots. It offers tools for fuel, temperature, and time conversions, runway headings, crosswind calculations, descent planning, and airport weather retrieval.

**Highlights:** Fuel, temperature, and time conversion, Landing crosswind calculator, Descent planner, Airport weather (METAR) retrieval, Runway reciprocal finder, Flight briefing tips

**Features:** macOS Compatibility

**In-app purchases:** none


### ZeroDay Dev

[App page](https://appshunter.io/ios/app/zeroday-dev/id6760129673)

Learn secure coding and blockchain security through hands-on challenges and real-world exploit analysis. Practice building exploit intuition with interactive exercises and track your progress through curated learning paths. The app is designed for offline use, allowing you to learn anytime, anywhere.

**Highlights:** Hands-on coding challenges, Real-world exploit analysis, Interactive practice exercises, Curated learning tracks, Progress tracking and gamification, Offline-first functionality

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Content | $4.99 | one-time |


## Frequently asked questions

### Is PilotAssist free?

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

### Is ZeroDay Dev free?

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

### Which has better reviews, PilotAssist or ZeroDay Dev?

PilotAssist is rated higher. PilotAssist averages 5.0 out of 5 from 1 ratings, while ZeroDay Dev averages 4.8 from 4 ratings.

### Do PilotAssist or ZeroDay Dev have ads?

Neither PilotAssist nor ZeroDay Dev shows ads.

### Which is updated more often, PilotAssist or ZeroDay Dev?

PilotAssist ships an update every 20 months, and ZeroDay Dev weekly. Most recently, PilotAssist was updated on October 2, 2026 and ZeroDay Dev on October 6, 2026.

---

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