# ZNotes vs Digital SAT Practice Prep

The clearest difference is in-app purchases: ZNotes at none against Digital SAT Practice Prep's 1. ZNotes also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Digital SAT Practice Prep sells 1 one-off in-app purchase. ZNotes asks for nothing beyond the download.

ZNotes ships an update every 10 days, Digital SAT Practice Prep weekly. The most recent releases landed on September 25, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | ZNotes | Digital SAT Practice Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (3 ratings)](https://appshunter.io/ios/app/znotes-study-notes-and-revision/id6761271207/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Weekly** |
| Monetization | Free | — |
| Size | 42 MB | 14 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ZNotes](https://appshunter.io/developer/1888546350) | [RIVERSHIP](https://appshunter.io/developer/6780804499) |

## What reviewers say

### ZNotes

[App page](https://appshunter.io/ios/app/znotes-study-notes-and-revision/id6761271207)

Access over 200 syllabus-aligned study notes, chapter-wise quizzes, and an AI tutor for IGCSE, A-Level, IB Diploma, and SAT students. Improve exam confidence and achieve target grades with this free, student-led learning platform.

**Highlights:** Syllabus-aligned study notes, Chapter-wise quizzes, AI tutor (Ask Zee), Progress tracking, Student-created content, Exam confidence booster

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

**In-app purchases:** none


### Digital SAT Practice Prep

[App page](https://appshunter.io/ios/app/digital-sat-practice-prep/id6785842123)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Everything | $4.99 | one-time |


## Frequently asked questions

### Is ZNotes free?

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

### Is Digital SAT Practice Prep free?

Digital SAT Practice Prep is free to download, with in-app purchases available.

### Do ZNotes or Digital SAT Practice Prep have ads?

Neither ZNotes nor Digital SAT Practice Prep shows ads.

### Which is updated more often, ZNotes or Digital SAT Practice Prep?

ZNotes ships an update every 10 days, and Digital SAT Practice Prep weekly. Most recently, ZNotes was updated on September 25, 2026 and Digital SAT Practice Prep 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.*