# DeZiel vs Blitz

The clearest difference is in-app purchases: DeZiel at none against Blitz's 10. DeZiel also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Blitz sells 10 one-off in-app purchases. DeZiel asks for nothing beyond the download.

DeZiel ships an update every 9 days, Blitz every 2 weeks. The most recent releases landed on October 25, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | DeZiel | Blitz |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/blitz-ap-exam-prep/id6769779819/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 40 MB | 45 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Umurzokov Bakhtishod](https://appshunter.io/developer/1746603373) | [FORTYNINE AND A HALF LABS, LLC](https://appshunter.io/developer/1896535861) |

## What reviewers say

### DeZiel

[App page](https://appshunter.io/ios/app/deziel/id6759326795)

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

**In-app purchases:** none


### Blitz

[App page](https://appshunter.io/ios/app/blitz-ap-exam-prep/id6769779819)

This app uses gamified learning and spaced repetition to help students master AP exam material. It offers interactive flashcards, progress tracking, and rewards to make studying engaging and effective. Unlock full courses with a one-time purchase after trying free introductory units.

**Highlights:** Gamified learning with XP and rewards, Spaced repetition for effective memorization, Offline access for studying anywhere, Progress tracking by unit, Vocab drill flashcards, One-time purchase per course

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AP Macroeconomics | $9.99 | one-time |
| AP Microeconomics | $9.99 | one-time |
| AP Chemistry | $9.99 | one-time |
| AP Psychology | $9.99 | one-time |
| AP Environmental Science | $9.99 | one-time |
| AP US Government & Politics | $9.99 | one-time |
| AP Physics 1 | $9.99 | one-time |
| AP Biology | $9.99 | one-time |
| AP European History | $9.99 | one-time |
| AP US History | $9.99 | one-time |


## Frequently asked questions

### Is DeZiel free?

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

### Is Blitz free?

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

### Do DeZiel or Blitz have ads?

Neither DeZiel nor Blitz shows ads.

### Which is updated more often, DeZiel or Blitz?

DeZiel ships an update every 9 days, and Blitz every 2 weeks. Most recently, DeZiel was updated on October 25, 2026 and Blitz on October 22, 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.*