# LIFLOG vs Big Yellow Diary

The clearest difference is in-app purchases: LIFLOG at none against Big Yellow Diary's 1. LIFLOG also leads on iOS requirement (15.0 vs 17.0). Big Yellow Diary's advantage is update cadence (every 6 days vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Big Yellow Diary sells 1 one-off in-app purchase. LIFLOG asks for nothing beyond the download.

LIFLOG ships an update every 3 weeks, Big Yellow Diary every 6 days. The most recent releases landed on October 30, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | LIFLOG | Big Yellow Diary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Size | 52 MB | 5 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Plumberry Custom](https://appshunter.io/developer/1745191078) | [山 黄](https://appshunter.io/developer/1679305097) |

## What reviewers say

### LIFLOG

[App page](https://appshunter.io/ios/app/liflog/id6502373770)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Big Yellow Diary

[App page](https://appshunter.io/ios/app/big-yellow-diary/id6739752316)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus version | $1.99 | one-time |


## Frequently asked questions

### Is LIFLOG free?

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

### Is Big Yellow Diary free?

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

### Do LIFLOG or Big Yellow Diary have ads?

Neither LIFLOG nor Big Yellow Diary shows ads.

### Which is updated more often, LIFLOG or Big Yellow Diary?

LIFLOG ships an update every 3 weeks, and Big Yellow Diary every 6 days. Most recently, LIFLOG was updated on October 30, 2026 and Big Yellow Diary on November 8, 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.*