# SPI Exam by Rocket Prep 2026 vs Sonography Exam Prep

The clearest difference is iOS requirement: SPI Exam by Rocket Prep 2026 at 15.1 against Sonography Exam Prep's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SPI Exam by Rocket Prep 2026 sells 6 in-app purchases, starting at $12.99 per 7 days and Sonography Exam Prep sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | SPI Exam by Rocket Prep 2026 | Sonography Exam Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/spi-exam-by-rocket-prep-2026/id6753586122/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 49 MB | 5 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Darya Pyzhyk](https://appshunter.io/developer/1799009188) | [MD Shahariar Nazim Joy](https://appshunter.io/developer/1893961943) |

## What reviewers say

### SPI Exam by Rocket Prep 2026

[App page](https://appshunter.io/ios/app/spi-exam-by-rocket-prep-2026/id6753586122)

Prepare for the 2026 Sonography Principles and Instrumentation (SPI) exam with comprehensive practice questions, detailed explanations, and customizable study modes. Track your progress, access expert review resources, and utilize active learning tools to master sonography concepts. Study anytime, anywhere with offline access.

**Highlights:** Extensive question bank, Detailed explanations and references, Customizable study modes, Progress tracking and analytics, Expert-led review resources, Active learning tools, Offline access

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SPI Weekly Full Access | $12.99 | per 7 days |
| SPI Monthly Full Access | $32.99 | per month |
| SPI Monthly Full Access | $32.99 | per month |
| ARDMS_SPI_mock_tries_1 | $4.99 | one-time |
| ARDMS_SPI_mock_tries_3 | $9.99 | one-time |
| ARDMS_SPI_mock_tries_5 | $14.99 | one-time |


### Sonography Exam Prep

[App page](https://appshunter.io/ios/app/sonography-exam-prep-spi/id6790645310)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Access | $9.99 | per month |
| Annual Access | $49.99 | per year |
| Lifetime Access | $99.99 | one-time |


## Frequently asked questions

### Is SPI Exam by Rocket Prep 2026 free?

SPI Exam by Rocket Prep 2026 is free to download, with in-app purchases available.

### Is Sonography Exam Prep free?

Sonography Exam Prep is free to download, with in-app purchases available.

### Do SPI Exam by Rocket Prep 2026 or Sonography Exam Prep have ads?

Neither SPI Exam by Rocket Prep 2026 nor Sonography Exam Prep 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.*