# ISEE by ERB vs ScholarAces Prep

The clearest difference is device support: ScholarAces Prep at 3 against ISEE by ERB's 1. ISEE by ERB's advantage is iOS requirement (10.2 vs 15.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ISEE by ERB ships an update every 7 months, ScholarAces Prep every 4 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | ISEE by ERB | ScholarAces Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.4 (9 ratings)](https://appshunter.io/ios/app/isee-by-erb/id1528059768/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 4 months** |
| Monetization | Free | — |
| Size | 23 MB | 42 MB |
| Requires iOS | **10.2** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Internet Testing Systems (ITS)](https://appshunter.io/developer/546817214) | [THINK U1 INC.](https://appshunter.io/developer/1725079545) |

## What reviewers say

### ISEE by ERB

[App page](https://appshunter.io/ios/app/isee-by-erb/id1528059768)

This app provides a standardized assessment of reasoning and achievement skills for students applying to independent schools. It offers a fair and reliable test used by schools across the U.S. and internationally for admissions.

**Highlights:** Standardized skill assessment, Reasoning and achievement ranking, Fair and reliable testing, Admissions for independent schools, Used internationally

**In-app purchases:** none


### ScholarAces Prep

[App page](https://appshunter.io/ios/app/scholaraces-prep/id6475754430)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ISEE by ERB free?

ISEE by ERB is free to download, with no in-app purchases.

### Is ScholarAces Prep free?

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

### Do ISEE by ERB or ScholarAces Prep have ads?

Neither ISEE by ERB nor ScholarAces Prep shows ads.

### Which is updated more often, ISEE by ERB or ScholarAces Prep?

ISEE by ERB ships an update every 7 months, and ScholarAces Prep every 4 months. Most recently, ISEE by ERB was updated on October 24, 2026 and ScholarAces Prep on October 24, 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.*