# CastleKeyp vs BlitzGTD

The clearest difference is in-app purchases: CastleKeyp at none against BlitzGTD's 1. CastleKeyp also leads on iOS requirement (15.1 vs 17.0). BlitzGTD's advantage is update cadence (every 4 days vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. BlitzGTD sells 1 one-off in-app purchase. CastleKeyp asks for nothing beyond the download.

CastleKeyp ships an update every 2 months, BlitzGTD every 4 days. The most recent releases landed on October 14, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | CastleKeyp | BlitzGTD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/castlekeyp/id1541685212/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 48 MB | 22 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [CastleKeyp Corporation](https://appshunter.io/developer/1541685214) | [Sascha Krug](https://appshunter.io/developer/1698716188) |

## What reviewers say

### CastleKeyp

[App page](https://appshunter.io/ios/app/castlekeyp/id1541685212)

Securely store and manage all your sensitive personal information, from passwords to family details. Access your encrypted data from anywhere and share specific information with trusted contacts. Organize social circles and never miss important dates with an integrated calendar.

**Highlights:** End-to-end encrypted data storage, Securely store passwords, bank details, and personal profiles, Share specific information with trusted contacts, Organize social circles and custom groups, Integrated calendar for important dates, Contact management for family and friends

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

**In-app purchases:** none


### BlitzGTD

[App page](https://appshunter.io/ios/app/blitzgtd/id6463464743)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BlitzGTD Pro | $5.99 | one-time |


## Frequently asked questions

### Is CastleKeyp free?

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

### Is BlitzGTD free?

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

### Do CastleKeyp or BlitzGTD have ads?

Neither CastleKeyp nor BlitzGTD shows ads.

### Which is updated more often, CastleKeyp or BlitzGTD?

CastleKeyp ships an update every 2 months, and BlitzGTD every 4 days. Most recently, CastleKeyp was updated on October 14, 2026 and BlitzGTD on October 19, 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.*