# Agrisolar AR vs Undergrounds REE Review

The clearest difference is in-app purchases: Agrisolar AR at none against Undergrounds REE Review's 5. Undergrounds REE Review's advantage is update cadence (every 3 weeks vs every 13 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Undergrounds REE Review sells 5 one-off in-app purchases. Agrisolar AR asks for nothing beyond the download.

Agrisolar AR ships an update every 13 months, Undergrounds REE Review every 3 weeks. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Agrisolar AR | Undergrounds REE Review |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 weeks** |
| Size | 317 MB | 96 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Zumoko doo Novi Sad](https://appshunter.io/developer/1456402707) | [Clibourn Quiapo](https://appshunter.io/developer/1812381912) |

## What reviewers say

### Agrisolar AR

[App page](https://appshunter.io/ios/app/agrisolar-ar/id6474272963)

**In-app purchases:** none


### Undergrounds REE Review

[App page](https://appshunter.io/ios/app/undergrounds-ree-review/id6745921735)

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Math | $0.99 | one-time |
| ESAS | $0.99 | one-time |
| EE | $0.99 | one-time |
| Full Enrollment | $0.99 | one-time |
| Refresher | $0.99 | one-time |


## Frequently asked questions

### Is Agrisolar AR free?

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

### Is Undergrounds REE Review free?

Undergrounds REE Review is free to download, with in-app purchases available.

### Do Agrisolar AR or Undergrounds REE Review have ads?

Neither Agrisolar AR nor Undergrounds REE Review shows ads.

### Which is updated more often, Agrisolar AR or Undergrounds REE Review?

Agrisolar AR ships an update every 13 months, and Undergrounds REE Review every 3 weeks. Most recently, Agrisolar AR was updated on November 4, 2026 and Undergrounds REE Review on October 30, 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.*