# NeuronNotes vs Zero Deficit

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

Both are free to download. NeuronNotes sells 2 in-app purchases, starting at $8.99 per month 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.

## The numbers

| Metric | NeuronNotes | 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 |
| Monetization | — | Free with in-app purchases |
| Size | 13 MB | 3 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 12+ |
| Developer | [Ahmad Adli Azhar](https://appshunter.io/developer/1795180831) | [ZERO DEFICIT LLC](https://appshunter.io/developer/1874574916) |

## What reviewers say

### NeuronNotes

[App page](https://appshunter.io/ios/app/neuronnotes-ai-note-taker/id6741705715)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $8.99 | per month |
| Yearly | $49.99 | per year |


### 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 NeuronNotes free?

NeuronNotes 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 NeuronNotes or Zero Deficit have ads?

Neither NeuronNotes nor Zero Deficit shows ads.

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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.*