# AMOS Mobile Solution vs Calday

The clearest difference is in-app purchases: AMOS Mobile Solution at none against Calday's 2. Calday's advantage is update cadence (every 4 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Calday sells 2 one-off in-app purchases. AMOS Mobile Solution asks for nothing beyond the download.

AMOS Mobile Solution ships an update every 3 weeks, Calday every 4 days. The most recent releases landed on October 17, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | AMOS Mobile Solution | Calday |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/amos-mobile-solution/id1645642637/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | Free | — |
| Size | 41 MB | 44 MB |
| Requires iOS | **14.0** | 15 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AUTOMATED MINING OPERATIONS SOFTWARE INC.](https://appshunter.io/developer/1645642639) | [Hefei Xiguoke Technology Co., Ltd.](https://appshunter.io/developer/1546692926) |

## What reviewers say

### AMOS Mobile Solution

[App page](https://appshunter.io/ios/app/amos-mobile-solution/id1645642637)

Streamline mining and quarrying operations with equipment inspections, repair collaboration, and automated documentation. View production and breakdown dashboards. Works offline with background syncing.

**Highlights:** Annotated equipment inspections, Collaborative repair management, Automated compliance documentation, Production and breakdown dashboards, Offline functionality, Customizable to operational needs

**Features:** macOS Compatibility

**In-app purchases:** none


### Calday

[App page](https://appshunter.io/ios/app/calday-simple-daily-journal/id6748715080)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Month PRO | $2.99 | one-time |
| Year PRO | $19.99 | one-time |


## Frequently asked questions

### Is AMOS Mobile Solution free?

AMOS Mobile Solution is free to download, with no in-app purchases.

### Is Calday free?

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

### Do AMOS Mobile Solution or Calday have ads?

Neither AMOS Mobile Solution nor Calday shows ads.

### Which is updated more often, AMOS Mobile Solution or Calday?

AMOS Mobile Solution ships an update every 3 weeks, and Calday every 4 days. Most recently, AMOS Mobile Solution was updated on October 17, 2026 and Calday on October 25, 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.*