# Client Note Tracker vs Castle Management Services

The clearest difference is in-app purchases: Castle Management Services at none against Client Note Tracker's 6. Castle Management Services also leads on update cadence (every 2 weeks vs every 5 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Client Note Tracker sells 6 in-app purchases, starting at $2.99 per month. Castle Management Services asks for nothing beyond the download.

Client Note Tracker ships an update every 5 weeks, Castle Management Services every 2 weeks. The most recent releases landed on October 11, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Client Note Tracker | Castle Management Services |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (103 ratings)](https://appshunter.io/ios/app/client-note-tracker-easy-crm/id6475484569/reviews)** | — |
| Number of ratings | **103** | — |
| Positive reviews | 89.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | Freemium | — |
| Size | 34 MB | 110 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sandpiper Apps LLC](https://appshunter.io/developer/1724232938) | [CINC Systems](https://appshunter.io/developer/673135886) |

## What reviewers say

### Client Note Tracker

[App page](https://appshunter.io/ios/app/client-note-tracker-easy-crm/id6475484569)

Easily record and retrieve client interactions and details. Add custom fields, notes with photos, and access your data across multiple devices via cloud backup. Ideal for professionals needing organized client management.

**Highlights:** Searchable client list, Custom client fields, Notes with photos and dictation, Cloud backup and multi-device access, Export notes to PDF, Reusable note templates

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro Plan | $2.99 | per month |
| Monthly Pro Plan | $4.99 | per month |
| Pro monthly | $7.99 | per month |
| Yearly Pro Plan | $23.99 | per year |
| Yearly Pro Plan | $39.99 | per year |
| Yearly Pro Plan | $49.99 | per year |


### Castle Management Services

[App page](https://appshunter.io/ios/app/castle-management-services/id6797623861)

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

**In-app purchases:** none


## Frequently asked questions

### Is Client Note Tracker free?

Client Note Tracker is free to download, with in-app purchases available.

### Is Castle Management Services free?

Castle Management Services is free to download, with no in-app purchases.

### Do Client Note Tracker or Castle Management Services have ads?

Neither Client Note Tracker nor Castle Management Services shows ads.

### Which is updated more often, Client Note Tracker or Castle Management Services?

Client Note Tracker ships an update every 5 weeks, and Castle Management Services every 2 weeks. Most recently, Client Note Tracker was updated on October 11, 2026 and Castle Management Services on September 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.*