# SIDA Tools vs Lumina Calendar

The clearest difference is in-app purchases: SIDA Tools at none against Lumina Calendar's 7. Lumina Calendar's advantage is update cadence (every 5 days vs every 5 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Lumina Calendar sells 7 one-off in-app purchases. SIDA Tools asks for nothing beyond the download.

SIDA Tools ships an update every 5 weeks, Lumina Calendar every 5 days. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | SIDA Tools | Lumina Calendar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/lumina-calendar/id6753099749/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 5 days** |
| Monetization | — | Free with in-app purchases |
| Size | 19 MB | 761 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Autosoft Multimedia srl](https://appshunter.io/developer/784464890) | [Timothy Markey](https://appshunter.io/developer/1842510791) |

## What reviewers say

### SIDA Tools

[App page](https://appshunter.io/ios/app/sida-tools/id1486291099)

**Features:** macOS Compatibility

**In-app purchases:** none


### Lumina Calendar

[App page](https://appshunter.io/ios/app/lumina-calendar/id6753099749)

Transform your device into a personalized smart display combining your calendar, clock, and favorite photos. View your schedule with elegant layouts that showcase your chosen backgrounds, perfect for desks or everyday use.

**Highlights:** Photo calendar and smart display, Day, week, and month layouts, Clock display, Event and daily agenda, Custom photo backgrounds, iPhone and iPad support, Calendar search

**Features:** Family Sharing

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nature Backgrounds | $2.99 | one-time |
| Space Backgrounds | $2.99 | one-time |
| Holiday Fall Backgrounds | $2.99 | one-time |
| Holiday Winter Backgrounds | $2.99 | one-time |
| Holiday Spring Backgrounds | $2.99 | one-time |
| Holiday Summer Backgrounds | $2.99 | one-time |
| Lumina Premium | $3.99 | one-time |


## Frequently asked questions

### Is SIDA Tools free?

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

### Is Lumina Calendar free?

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

### Do SIDA Tools or Lumina Calendar have ads?

Neither SIDA Tools nor Lumina Calendar shows ads.

### Which is updated more often, SIDA Tools or Lumina Calendar?

SIDA Tools ships an update every 5 weeks, and Lumina Calendar every 5 days. Most recently, SIDA Tools was updated on November 7, 2026 and Lumina Calendar on October 30, 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.*