# ERSB Lite vs DeepGrading

The clearest difference is in-app purchases: DeepGrading at none against ERSB Lite's 5. DeepGrading also leads on update cadence (weekly vs every 2 months) and device support (3 vs 1). ERSB Lite's advantage is iOS requirement (13.0 vs 15.1). On price and ads there is nothing between them.

Both are free to download. ERSB Lite sells 5 one-off in-app purchases. DeepGrading asks for nothing beyond the download.

ERSB Lite ships an update every 2 months, DeepGrading weekly. The most recent releases landed on October 6, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | ERSB Lite | DeepGrading |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (3 ratings)](https://appshunter.io/ios/app/ersb-lite/id976322567/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 253 MB | 43 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Attainment Company](https://appshunter.io/developer/403989333) | [hemant Gangwar](https://appshunter.io/developer/1896590593) |

## What reviewers say

### ERSB Lite

[App page](https://appshunter.io/ios/app/ersb-lite/id976322567)

This app builds early reading skills for students progressing from foundational literacy. It uses systematic instruction and assessments to help individuals read independently, proving effective for those with intellectual disabilities and autism.

**Highlights:** Early literacy skill development, Systematic instruction, Ongoing assessments, Progress to 2nd-grade reading level, Effective for intellectual disabilities, Effective for autism

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Levels 12-16 | $29.99 | one-time |
| Levels 17-21 | $29.99 | one-time |
| Levels 22-26 | $29.99 | one-time |
| Levels 2-6 | $29.99 | one-time |
| Levels 7-11 | $29.99 | one-time |


### DeepGrading

[App page](https://appshunter.io/ios/app/deepgrading-ai-paper-grader/id6768930043)

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

**In-app purchases:** none


## Frequently asked questions

### Is ERSB Lite free?

ERSB Lite is free to download, with in-app purchases available.

### Is DeepGrading free?

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

### Do ERSB Lite or DeepGrading have ads?

Neither ERSB Lite nor DeepGrading shows ads.

### Which is updated more often, ERSB Lite or DeepGrading?

ERSB Lite ships an update every 2 months, and DeepGrading weekly. Most recently, ERSB Lite was updated on October 6, 2026 and DeepGrading on October 8, 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.*