# APMA GUIDE vs Radius

The clearest difference is in-app purchases: APMA GUIDE at none against Radius's 3. Radius's advantage is update cadence (every 2 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Radius sells 3 in-app purchases, starting at $0.99 per month. APMA GUIDE asks for nothing beyond the download.

APMA GUIDE ships an update every 2 months, Radius every 2 weeks. The most recent releases landed on October 2, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | APMA GUIDE | Radius |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 23 MB | 47 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [AMOREPACIFIC Corp.](https://appshunter.io/developer/375092776) | [Berkay Egeli](https://appshunter.io/developer/1874093082) |

## What reviewers say

### APMA GUIDE

[App page](https://appshunter.io/ios/app/apma-guide/id1324417031)

Enhance your exhibition experience with a visual guide optimized for mobile devices. Access rich multimedia content, capture and share photos, and find detailed information about artworks and related programs.

**Highlights:** Optimized mobile visual guide, Intuitive and simple design, In-app camera for photos, Instagram sharing integration, Related content links for artworks, Built-in search engine

**Features:** Vision Pro support

**In-app purchases:** none


### Radius

[App page](https://appshunter.io/ios/app/radius-location-reminders/id6761543229)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Radius Monthly | $0.99 | per month |
| Radius Pro Yearly | $4.99 | per year |
| Radius Pro Lifetime | $14.99 | one-time |


## Frequently asked questions

### Is APMA GUIDE free?

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

### Is Radius free?

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

### Do APMA GUIDE or Radius have ads?

Neither APMA GUIDE nor Radius shows ads.

### Which is updated more often, APMA GUIDE or Radius?

APMA GUIDE ships an update every 2 months, and Radius every 2 weeks. Most recently, APMA GUIDE was updated on October 2, 2026 and Radius on October 9, 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.*