# PDF Locker vs Geometer Map

The clearest difference is in-app purchases: Geometer Map at none against PDF Locker's 3. PDF Locker's advantage is iOS requirement (17.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. PDF Locker sells 3 in-app purchases, starting at $4.99 per 7 days. Geometer Map asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on August 25, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | PDF Locker | Geometer Map |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | Every 5 months |
| Size | 3 MB | 1 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Vikram Singh](https://appshunter.io/developer/1800895019) | [Echo Labs AG](https://appshunter.io/developer/1477626709) |

## What reviewers say

### PDF Locker

[App page](https://appshunter.io/ios/app/pdf-locker-pdf-wolf/id6745149950)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mobile Pro Access Weekly | $4.99 | per 7 days |
| Mobile Pro Access Yearly | $19.99 | per year |
| Pro Lifetime Unlock | $19.99 | one-time |


### Geometer Map

[App page](https://appshunter.io/ios/app/geometer-map/id6748311921)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PDF Locker free?

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

### Is Geometer Map free?

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

### Do PDF Locker or Geometer Map have ads?

Neither PDF Locker nor Geometer Map shows ads.

### Which is updated more often, PDF Locker or Geometer Map?

PDF Locker ships an update every 5 months, and Geometer Map every 5 months. Most recently, PDF Locker was updated on August 25, 2026 and Geometer Map on September 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*