# BILA vs Unterra

The clearest difference is in-app purchases: BILA at none against Unterra's 3. BILA also leads on device support (3 vs 1) and iOS requirement (14.0 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Unterra sells 3 in-app purchases, starting at $1.99 per month. BILA asks for nothing beyond the download.

BILA ships an update weekly, Unterra every 4 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | BILA | Unterra |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (3 ratings)](https://appshunter.io/ios/app/unterra/id6780282962/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 16.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | — | Freemium |
| Size | 9 MB | 58 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [MIZAN](https://appshunter.io/developer/1812421235) | [NPDesigned LLC](https://appshunter.io/developer/1659684889) |

## What reviewers say

### BILA

[App page](https://appshunter.io/ios/app/bila/id6752692020)

**Features:** macOS Compatibility

**In-app purchases:** none


### Unterra

[App page](https://appshunter.io/ios/app/unterra/id6780282962)

This app creates a personal map of your real-world travels, revealing fog as you explore new streets, cities, and countries. Track your progress, earn badges for milestones, and customize your exploration experience.

**Highlights:** Personalized exploration map, Fog reveals as you travel, Tracks roads, cities, states, and countries, Earn badges for exploration milestones, Customizable reveal radius, Metric and imperial units

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unterra Pro - Monthly | $1.99 | per month |
| Unterra Pro | $14.99 | per year |
| Unterra Pro - Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is BILA free?

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

### Is Unterra free?

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

### Do BILA or Unterra have ads?

Neither BILA nor Unterra shows ads.

### Which is updated more often, BILA or Unterra?

BILA ships an update weekly, and Unterra every 4 days. Most recently, BILA was updated on October 30, 2026 and Unterra on October 31, 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.*