# Tandem vs Marlow Diary

The clearest difference is update cadence: Marlow Diary at every 4 days against Tandem's every 8 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Tandem sells 3 in-app purchases, starting at $5.99 per month and Marlow Diary sells 4 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

Tandem ships an update every 8 days, Marlow Diary every 4 days. The most recent releases landed on October 16, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Tandem | Marlow Diary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 8 days | **Every 4 days** |
| Size | 55 MB | 50 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bruno Petkovic](https://appshunter.io/developer/1875384679) | [Joseph Coleman](https://appshunter.io/developer/1576754395) |

## What reviewers say

### Tandem

[App page](https://appshunter.io/ios/app/tandem-couples-organizer/id6758865751)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tandem Premium | $5.99 | per month |
| Tandem Premium | $29.99 | per year |
| Tandem Premium Lifetime | $79.99 | one-time |


### Marlow Diary

[App page](https://appshunter.io/ios/app/marlow-diary/id6765477713)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Care | $7.99 | per month |
| Growing Care | $19.99 | per month |
| Small Care | $79.99 | per year |
| Growing Care | $189.99 | per year |


## Frequently asked questions

### Is Tandem free?

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

### Is Marlow Diary free?

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

### Do Tandem or Marlow Diary have ads?

Neither Tandem nor Marlow Diary shows ads.

### Which is updated more often, Tandem or Marlow Diary?

Tandem ships an update every 8 days, and Marlow Diary every 4 days. Most recently, Tandem was updated on October 16, 2026 and Marlow Diary on October 4, 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.*