# DecaMaps vs Glider Polar

The clearest difference is price: DecaMaps at Free against Glider Polar's $2.99. DecaMaps also leads on update cadence (every 2 months vs every 21 months) and ratings volume (3 vs 1). Glider Polar's advantage is rating (5.0 vs 3.3) and in-app purchases (none vs 3). On ads and device support there is nothing between them.

DecaMaps is free to download; Glider Polar costs $2.99 up front. DecaMaps sells 3 one-off in-app purchases. Glider Polar asks for nothing beyond the download.

Glider Polar holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

DecaMaps ships an update every 2 months, Glider Polar every 21 months. The most recent releases landed on October 23, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | DecaMaps | Glider Polar |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [3.3 (3 ratings)](https://appshunter.io/ios/app/decamaps/id637384550/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/glider-polar/id1608086488/reviews)** |
| Number of ratings | **3** | 1 |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 21 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 11 MB | 2 MB |
| Requires iOS | **8.0** | 15.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MEDIANAVI,Inc.](https://appshunter.io/developer/637384553) | [Robert Walker](https://appshunter.io/developer/299475042) |

## What reviewers say

### DecaMaps

[App page](https://appshunter.io/ios/app/decamaps/id637384550)

Easily create large, detailed maps from a selected area. Preview maps on a single screen and print them up to poster size. Save maps as high-resolution images to your device.

**Highlights:** Create large detailed maps, Select area and tap button, Easy preview on one screen, Print maps up to poster size, Save maps to Camera Roll, Supports A4/Letter/B4/B5 paper sizes

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| Large poster print(more than 4 sheets) | $2.99 | one-time |
| Large poster print(more than 4 sheets)  and Remove Ads | $3.99 | one-time |


### Glider Polar

[App page](https://appshunter.io/ios/app/glider-polar/id1608086488)

This app predicts glider performance by allowing users to adjust gross weight and headwind. Experienced pilots can explore the impact of water ballast on glide ratio and speed, while beginners can visualize how wind and weight affect performance.

**Highlights:** Predicts glider glide performance, Adjustable gross weight, Adjustable headwind component, Shows effect of water ballast, Illustrates wind and weight impact

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

**In-app purchases:** none


## Frequently asked questions

### Is DecaMaps free?

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

### Is Glider Polar free?

Glider Polar costs $2.99, with no in-app purchases.

### Which has better reviews, DecaMaps or Glider Polar?

Glider Polar is rated higher. DecaMaps averages 3.3 out of 5 from 3 ratings, while Glider Polar averages 5.0 from 1 ratings.

### Do DecaMaps or Glider Polar have ads?

Neither DecaMaps nor Glider Polar shows ads.

### Which is updated more often, DecaMaps or Glider Polar?

DecaMaps ships an update every 2 months, and Glider Polar every 21 months. Most recently, DecaMaps was updated on October 23, 2026 and Glider Polar on October 21, 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.*