# Nula vs The Sitter Source

The clearest difference is in-app purchases: The Sitter Source at none against Nula's 2. The Sitter Source also leads on device support (3 vs 1). Nula's advantage is update cadence (every 2 months vs every 5 months). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Nula sells 2 in-app purchases, starting at $14.99 per month. The Sitter Source asks for nothing beyond the download.

Nula ships an update every 2 months, The Sitter Source every 5 months. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Nula | The Sitter Source |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (27 ratings)](https://appshunter.io/ios/app/nula-for-parents/id1580949812/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | 95.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 89 MB | 8 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nula LLC](https://appshunter.io/developer/1580949814) | [Sittysites LLC](https://appshunter.io/developer/1815166927) |

## What reviewers say

### Nula

[App page](https://appshunter.io/ios/app/nula-for-parents/id1580949812)

This app simplifies childcare management by connecting parents with verified sitters. It allows for seamless communication, scheduling, task assignment, and even live location tracking for enhanced peace of mind. Parents can also receive updates and manage payments effortlessly.

**Highlights:** Find and connect with verified sitters, Schedule appointments and assign tasks, Real-time GPS sitter tracking, In-app messaging and updates, Effortless payment management, Sitter profile creation

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $14.99 | per month |
| Yearly Subscription | $99.99 | per year |


### The Sitter Source

[App page](https://appshunter.io/ios/app/the-sitter-source/id6746461346)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Nula free?

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

### Is The Sitter Source free?

The Sitter Source is free to download, with no in-app purchases.

### Do Nula or The Sitter Source have ads?

Neither Nula nor The Sitter Source shows ads.

### Which is updated more often, Nula or The Sitter Source?

Nula ships an update every 2 months, and The Sitter Source every 5 months. Most recently, Nula was updated on November 7, 2026 and The Sitter Source on November 8, 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.*