# Altitude Checker vs SEP Delivery

The clearest difference is in-app purchases: SEP Delivery at none against Altitude Checker's 1. SEP Delivery also leads on ads (none vs shown) and update cadence (every 3 days vs every 4 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Altitude Checker sells 1 one-off in-app purchase. SEP Delivery asks for nothing beyond the download.

Altitude Checker ships an update every 4 months, SEP Delivery every 3 days. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Altitude Checker | SEP Delivery |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/altitude-checker/id635168846/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 282 MB | 167 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Takafumi AMANO](https://appshunter.io/developer/581065340) | [National Smart Online Solution LLC](https://appshunter.io/developer/1583710497) |

## What reviewers say

### Altitude Checker

[App page](https://appshunter.io/ios/app/altitude-checker/id635168846)

Measure altitude using your device's location or by selecting points on a map. Offers various measurement modes and customizable settings for units, datums, and coordinate systems. Includes an option to display addresses or coordinates.

**Highlights:** Map Measurement Mode, GNSS Mode, Digital Elevation Model (DEM) data, Unit selection (Meter/Foot), Special Datum options, Coordinate System selection, Address/Coordinate display

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### SEP Delivery

[App page](https://appshunter.io/ios/app/sep-delivery/id6761993716)

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

**In-app purchases:** none


## Frequently asked questions

### Is Altitude Checker free?

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

### Is SEP Delivery free?

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

### Do Altitude Checker or SEP Delivery have ads?

Altitude Checker shows ads; SEP Delivery does not.

### Which is updated more often, Altitude Checker or SEP Delivery?

Altitude Checker ships an update every 4 months, and SEP Delivery every 3 days. Most recently, Altitude Checker was updated on November 6, 2026 and SEP Delivery on November 5, 2026.

---

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