# single line diary vs When · Days That Matter

The clearest difference is in-app purchases: single line diary at none against When · Days That Matter's 1. single line diary also leads on iOS requirement (6.0 vs 17.0). When · Days That Matter's advantage is ads (none vs shown) and update cadence (every 3 days vs every 6 months). On price and device support there is nothing between them.

Both are free to download. When · Days That Matter sells 1 one-off in-app purchase. single line diary asks for nothing beyond the download.

single line diary ships an update every 6 months, When · Days That Matter every 3 days. The most recent releases landed on October 11, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | single line diary | When · Days That Matter |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 45.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 3 days** |
| Monetization | Ad-supported | — |
| Size | 4 MB | 6 MB |
| Requires iOS | **6.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SHIGETO TAKAGI](https://appshunter.io/developer/519611619) | [杰龙 刘](https://appshunter.io/developer/1481214183) |

## What reviewers say

### single line diary

[App page](https://appshunter.io/ios/app/single-line-diary/id564585722)

A simple daily journal app that allows you to record entries from 62 days in the past up to tomorrow. It features a checkbox for each day and lets you customize the start of your week to Sunday or Monday.

**Highlights:** Daily single line entries, Checkbox for each day, Customizable week start (Sunday/Monday), Date range: 62 days prior to tomorrow

**In-app purchases:** none


### When · Days That Matter

[App page](https://appshunter.io/ios/app/when-days-that-matter/id1616365331)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| When Premium · Lifetime Access | $0.99 | one-time |


## Frequently asked questions

### Is single line diary free?

single line diary is free to download, with no in-app purchases.

### Is When · Days That Matter free?

When · Days That Matter is free to download, with in-app purchases available.

### Do single line diary or When · Days That Matter have ads?

single line diary shows ads; When · Days That Matter does not.

### Which is updated more often, single line diary or When · Days That Matter?

single line diary ships an update every 6 months, and When · Days That Matter every 3 days. Most recently, single line diary was updated on October 11, 2026 and When · Days That Matter on October 12, 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.*