# 3LINEDIARY vs av8db

The clearest difference is in-app purchases: av8db at none against 3LINEDIARY's 1. av8db also leads on ads (none vs shown) and update cadence (every 2 days vs fortnightly). 3LINEDIARY's advantage is iOS requirement (15.6 vs 17.0). On price and device support there is nothing between them.

Both are free to download. 3LINEDIARY sells 1 in-app purchase, starting at $2.99 per month. av8db asks for nothing beyond the download.

3LINEDIARY ships an update fortnightly, av8db every 2 days. The most recent releases landed on October 13, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | 3LINEDIARY | av8db |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (48 ratings)](https://appshunter.io/ios/app/3linediary/id1436460302/reviews)** | — |
| Number of ratings | **48** | — |
| Positive reviews | 84.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 2 days** |
| Monetization | Freemium | — |
| Size | 88 MB | 6 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 12+ |
| Developer | [(주)윌림](https://appshunter.io/developer/1436460301) | [Thomas Bramble](https://appshunter.io/developer/6775708293) |

## What reviewers say

### 3LINEDIARY

[App page](https://appshunter.io/ios/app/3linediary/id1436460302)

This app offers a simple journaling experience focused on positivity and mindfulness. Capture daily thoughts with brief entries and optional photos, create multiple private or public diaries, and connect with a supportive community through shared writing and engagement.

**Highlights:** Three-line daily entries, Optional photo attachments, Multiple private diaries, Public diary sharing (anonymous option), Community engagement (likes, comments), Shared diaries with friends/family, Customizable reminders

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ‘Friends' Subscription | $2.99 | per month |


### av8db

[App page](https://appshunter.io/ios/app/av8db-pilot-network-and-logbook/id6775708291)

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

**In-app purchases:** none


## Frequently asked questions

### Is 3LINEDIARY free?

3LINEDIARY is free to download, with in-app purchases available.

### Is av8db free?

av8db is free to download, with no in-app purchases.

### Do 3LINEDIARY or av8db have ads?

3LINEDIARY shows ads; av8db does not.

### Which is updated more often, 3LINEDIARY or av8db?

3LINEDIARY ships an update fortnightly, and av8db every 2 days. Most recently, 3LINEDIARY was updated on October 13, 2026 and av8db on October 7, 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.*