# D1 Journal vs Plant Activity Tracking App

The clearest difference is update cadence: Plant Activity Tracking App at every 3 months against D1 Journal's every 54 months. D1 Journal's advantage is iOS requirement (12.4 vs 15.0). On price, ads, 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.

D1 Journal ships an update every 54 months, Plant Activity Tracking App every 3 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | D1 Journal | Plant Activity Tracking App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 54 months | **Every 3 months** |
| Size | 4 MB | 42 MB |
| Requires iOS | **12.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ankush Girotra](https://appshunter.io/developer/1330355495) | [Siemens Energy](https://appshunter.io/developer/1539380213) |

## What reviewers say

### D1 Journal

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Plant Activity Tracking App

[App page](https://appshunter.io/ios/app/plant-activity-tracking-app/id1585340320)

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

**In-app purchases:** none


## Frequently asked questions

### Is D1 Journal free?

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

### Is Plant Activity Tracking App free?

Plant Activity Tracking App is free to download, with no in-app purchases.

### Do D1 Journal or Plant Activity Tracking App have ads?

Neither D1 Journal nor Plant Activity Tracking App shows ads.

### Which is updated more often, D1 Journal or Plant Activity Tracking App?

D1 Journal ships an update every 54 months, and Plant Activity Tracking App every 3 months. Most recently, D1 Journal was updated on October 29, 2026 and Plant Activity Tracking App on October 27, 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.*