# D1 Journal vs SecretShield

The clearest difference is in-app purchases: D1 Journal at none against SecretShield's 4. D1 Journal also leads on iOS requirement (12.4 vs 17.0). SecretShield's advantage is update cadence (every 3 weeks vs every 54 months). On price, ads and device support there is nothing between them.

Both are free to download. SecretShield sells 4 in-app purchases, starting at $19.99 per month. D1 Journal asks for nothing beyond the download.

D1 Journal ships an update every 54 months, SecretShield every 3 weeks. The most recent releases landed on September 20, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | D1 Journal | SecretShield |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 54 months | **Every 3 weeks** |
| Size | 4 MB | 38 MB |
| Requires iOS | **12.4** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ankush Girotra](https://appshunter.io/developer/1330355495) | [Secret Shield Inc.](https://appshunter.io/developer/1765046506) |

## What reviewers say

### D1 Journal

[App page](https://appshunter.io/ios/app/d1-journal/id1477148454)

**Features:** macOS Compatibility

**In-app purchases:** none


### SecretShield

[App page](https://appshunter.io/ios/app/secretshield/id6670149348)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic | $19.99 | per month |
| Inheritance | $49.99 | per month |
| Basic | $199.00 | per year |
| Inheritance | $499.00 | per year |


## Frequently asked questions

### Is D1 Journal free?

D1 Journal is free to download, with no in-app purchases.

### Is SecretShield free?

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

### Do D1 Journal or SecretShield have ads?

Neither D1 Journal nor SecretShield shows ads.

### Which is updated more often, D1 Journal or SecretShield?

D1 Journal ships an update every 54 months, and SecretShield every 3 weeks. Most recently, D1 Journal was updated on September 20, 2026 and SecretShield on September 17, 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.*