# Petatto TODO vs LockScreen Notes Calendar

The clearest difference is ads: Petatto TODO at none against LockScreen Notes Calendar's shown. Petatto TODO also leads on update cadence (every 8 days vs monthly) and iOS requirement (15.1 vs 17). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Petatto TODO ships an update every 8 days, LockScreen Notes Calendar monthly. The most recent releases landed on October 6, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Petatto TODO | LockScreen Notes Calendar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 8 days** | Monthly |
| Size | 84 MB | 106 MB |
| Requires iOS | **15.1** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MARIE MORIKAGE](https://appshunter.io/developer/1896645636) | [Huy Van](https://appshunter.io/developer/1651079168) |

## What reviewers say

### Petatto TODO

[App page](https://appshunter.io/ios/app/petatto-todo/id6771369990)

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

**In-app purchases:** none


### LockScreen Notes Calendar

[App page](https://appshunter.io/ios/app/lockscreen-notes-calendar/id6802377051)

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

**In-app purchases:** none


## Frequently asked questions

### Is Petatto TODO free?

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

### Is LockScreen Notes Calendar free?

LockScreen Notes Calendar is free to download, with no in-app purchases.

### Do Petatto TODO or LockScreen Notes Calendar have ads?

LockScreen Notes Calendar shows ads; Petatto TODO does not.

### Which is updated more often, Petatto TODO or LockScreen Notes Calendar?

Petatto TODO ships an update every 8 days, and LockScreen Notes Calendar monthly. Most recently, Petatto TODO was updated on October 6, 2026 and LockScreen Notes Calendar on October 12, 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.*