# Relation Log vs Inkday

The clearest difference is in-app purchases: Relation Log at none against Inkday's 3. Relation Log also leads on iOS requirement (13.0 vs 17.0). Inkday's advantage is update cadence (every 9 days vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Inkday sells 3 in-app purchases, starting at $0.99 per month. Relation Log asks for nothing beyond the download.

Relation Log ships an update every 3 weeks, Inkday every 9 days. The most recent releases landed on September 28, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Relation Log | Inkday |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Size | 17 MB | 17 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Yu Hsing Liu](https://appshunter.io/developer/1879960290) | [ChienHsiang Yin](https://appshunter.io/developer/1158778730) |

## What reviewers say

### Relation Log

[App page](https://appshunter.io/ios/app/relation-log/id6759634877)

**Features:** macOS Compatibility

**In-app purchases:** none


### Inkday

[App page](https://appshunter.io/ios/app/inkday-private-journal/id6797171199)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Inkday Pro (Monthly) | $0.99 | per month |
| Inkday Pro (Yearly) | $5.99 | per year |
| Inkday Pro (Lifetime) | $9.99 | one-time |


## Frequently asked questions

### Is Relation Log free?

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

### Is Inkday free?

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

### Do Relation Log or Inkday have ads?

Neither Relation Log nor Inkday shows ads.

### Which is updated more often, Relation Log or Inkday?

Relation Log ships an update every 3 weeks, and Inkday every 9 days. Most recently, Relation Log was updated on September 28, 2026 and Inkday on October 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*