# Lesson Complete vs Zero Deficit

The clearest difference is iOS requirement: Zero Deficit at 15.0 against Lesson Complete's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Lesson Complete sells 3 one-off in-app purchases and Zero Deficit sells 3 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Lesson Complete | Zero Deficit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/zero-deficit-ccrn-exam-prep/id6758719491/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | — | Free with in-app purchases |
| Size | 72 MB | 3 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Don Dye](https://appshunter.io/developer/1599173274) | [ZERO DEFICIT LLC](https://appshunter.io/developer/1874574916) |

## What reviewers say

### Lesson Complete

[App page](https://appshunter.io/ios/app/lesson-complete/id1599173272)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Background 2 | Free | one-time |
| Flowers Background | Free | one-time |
| Dinosaur Background | Free | one-time |


### Zero Deficit

[App page](https://appshunter.io/ios/app/zero-deficit-ccrn-exam-prep/id6758719491)

Prepare for your CCRN exam with a comprehensive study tool built by an ICU nurse. It offers over 695 practice questions with detailed rationales, AI-powered personalization, smart flashcards, and full-length simulation exams to identify and address knowledge gaps.

**Highlights:** 695+ high-yield practice questions, Detailed rationales for every question, AI-powered personalized study guides, 190+ smart flashcards with spaced repetition, Full-length simulation exams, Detailed performance analytics, Exclusive cheat sheets

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zero Deficit CCRN PREP MONTHLY | $14.99 | per month |
| Zero Deficit CCRNPrep PremiumAnnual | $84.99 | per year |
| Zero Deficit CCRN Prep Lifetime | $199.99 | one-time |


## Frequently asked questions

### Is Lesson Complete free?

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

### Is Zero Deficit free?

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

### Do Lesson Complete or Zero Deficit have ads?

Neither Lesson Complete nor Zero Deficit shows ads.

### Which is updated more often, Lesson Complete or Zero Deficit?

Lesson Complete ships an update weekly, and Zero Deficit weekly. Most recently, Lesson Complete was updated on October 30, 2026 and Zero Deficit on November 5, 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.*