# LumiSource vs AP Study

The clearest difference is update cadence: AP Study at weekly against LumiSource's every 3 months. LumiSource's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, 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.

LumiSource ships an update every 3 months, AP Study weekly. The most recent releases landed on October 16, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | LumiSource | AP Study |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (91 ratings)](https://appshunter.io/ios/app/lumisource-exam-prep/id6746340356/reviews)** | — |
| Number of ratings | **91** | — |
| Positive reviews | 93.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Free | — |
| Size | 81 MB | 3 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [CaseHippo Inc](https://appshunter.io/developer/1551575873) | [Blake Young](https://appshunter.io/developer/1857948179) |

## What reviewers say

### LumiSource

[App page](https://appshunter.io/ios/app/lumisource-exam-prep/id6746340356)

Prepare for AP exams with condensed study guides and realistic practice tests. This app offers mobile-optimized content for efficient review anytime, anywhere. It currently supports over 10 AP subjects.

**Highlights:** Condensed study guides, Realistic practice tests, Detailed answer breakdowns, Mobile-optimized for on-the-go study, Supports over 10 AP subjects

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

**In-app purchases:** none


### AP Study

[App page](https://appshunter.io/ios/app/ap-study-ivy-prep/id6787478174)

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

**In-app purchases:** none


## Frequently asked questions

### Is LumiSource free?

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

### Is AP Study free?

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

### Do LumiSource or AP Study have ads?

Neither LumiSource nor AP Study shows ads.

### Which is updated more often, LumiSource or AP Study?

LumiSource ships an update every 3 months, and AP Study weekly. Most recently, LumiSource was updated on October 16, 2026 and AP Study on October 6, 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.*