# Hold It vs ZeroDay Dev

The clearest difference is review sentiment: ZeroDay Dev at 100% against Hold It's 50%. ZeroDay Dev also leads on price (Free vs $9.99) and update cadence (weekly vs every 2 weeks). Hold It's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

ZeroDay Dev is free to download; Hold It costs $9.99 up front. ZeroDay Dev sells 1 one-off in-app purchase. Hold It asks for nothing beyond the download.

Hold It ships an update every 2 weeks, ZeroDay Dev weekly. The most recent releases landed on September 7, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Hold It | ZeroDay Dev |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | — | **[4.8 (4 ratings)](https://appshunter.io/ios/app/zeroday-dev/id6760129673/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Paid | **Free** |
| Size | 3 MB | 69 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [kaisei watanabe](https://appshunter.io/developer/1543587757) | [John Lawniczak](https://appshunter.io/developer/1882793043) |

## What reviewers say

### Hold It

[App page](https://appshunter.io/ios/app/hold-it-simple-app-blocker/id6745756356)

This app helps you stay focused by limiting access to distracting applications during study or deep work sessions. Set daily time limits or launch counts for chosen apps with a simple, private, and effective system. Pay once and use it forever, with no recurring fees or hidden costs.

**Highlights:** Limit app usage by time or launches, One-time purchase, no subscriptions, Simple setup in under a minute, Works fully offline, Private, no data uploaded or shared, Designed for students and deep work

**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 Hold It free?

Hold It costs $9.99, with no in-app purchases.

### Is ZeroDay Dev free?

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

### Do Hold It or ZeroDay Dev have ads?

Neither Hold It nor ZeroDay Dev shows ads.

### Which is updated more often, Hold It or ZeroDay Dev?

Hold It ships an update every 2 weeks, and ZeroDay Dev weekly. Most recently, Hold It was updated on September 7, 2026 and ZeroDay Dev on September 18, 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.*