# M.E.L.C. vs ULTRAMAIN Mobile Notify

The clearest difference is in-app purchases: ULTRAMAIN Mobile Notify at none against M.E.L.C.'s 1. ULTRAMAIN Mobile Notify also leads on iOS requirement (11.0 vs 13.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. M.E.L.C. sells 1 one-off in-app purchase. ULTRAMAIN Mobile Notify asks for nothing beyond the download.

M.E.L.C. ships an update every 18 months, ULTRAMAIN Mobile Notify every 34 months. The most recent releases landed on October 6, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | M.E.L.C. | ULTRAMAIN Mobile Notify |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/melc/id1315299613/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 18 months** | Every 34 months |
| Monetization | Free | — |
| Size | 6 MB | 69 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Janko Enke](https://appshunter.io/developer/1315299612) | [Ultramain Systems Inc.](https://appshunter.io/developer/828491835) |

## What reviewers say

### M.E.L.C.

[App page](https://appshunter.io/ios/app/melc/id1315299613)

This tool helps aircraft engineers calculate the expiration dates for airplane defects based on minimum equipment lists. It provides a clear overview of all critical dates and allows for customization of defect categories.

**Highlights:** Calculate defect expiration dates, Supports categories A, B, C, D, View all important dates at a glance, Customize defect categories

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version | $0.99 | one-time |


### ULTRAMAIN Mobile Notify

[App page](https://appshunter.io/ios/app/ultramain-mobile-notify/id1424528854)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is M.E.L.C. free?

M.E.L.C. is free to download, with in-app purchases available.

### Is ULTRAMAIN Mobile Notify free?

ULTRAMAIN Mobile Notify is free to download, with no in-app purchases.

### Do M.E.L.C. or ULTRAMAIN Mobile Notify have ads?

Neither M.E.L.C. nor ULTRAMAIN Mobile Notify shows ads.

### Which is updated more often, M.E.L.C. or ULTRAMAIN Mobile Notify?

M.E.L.C. ships an update every 18 months, and ULTRAMAIN Mobile Notify every 34 months. Most recently, M.E.L.C. was updated on October 6, 2026 and ULTRAMAIN Mobile Notify on October 26, 2026.

---

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