# Featured Days vs sobolo

The clearest difference is price: sobolo at Free against Featured Days's $4.99. sobolo also leads on device support (3 vs 1) and iOS requirement (15.6 vs 26.0). Featured Days's advantage is in-app purchases (none vs 3) and ads (none vs shown).

sobolo is free to download; Featured Days costs $4.99 up front. sobolo sells 3 one-off in-app purchases. Featured Days asks for nothing beyond the download.

Featured Days ships an update fortnightly, sobolo every 10 months. The most recent releases landed on October 2, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Featured Days | sobolo |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 10 months |
| Size | 5 MB | 59 MB |
| Requires iOS | 26.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jinkyum Park](https://appshunter.io/developer/1697268479) | [SEJIN PARK](https://appshunter.io/developer/1571443134) |

## What reviewers say

### Featured Days

[App page](https://appshunter.io/ios/app/featured-days/id6523433258)

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

**In-app purchases:** none


### sobolo

[App page](https://appshunter.io/ios/app/sobolo-note-and-diary/id6739229779)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $0.49 | one-time |
| Split Frames | $0.49 | one-time |
| No Limits | $0.49 | one-time |


## Frequently asked questions

### Is Featured Days free?

Featured Days costs $4.99, with no in-app purchases.

### Is sobolo free?

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

### Do Featured Days or sobolo have ads?

sobolo shows ads; Featured Days does not.

### Which is updated more often, Featured Days or sobolo?

Featured Days ships an update fortnightly, and sobolo every 10 months. Most recently, Featured Days was updated on October 2, 2026 and sobolo on September 26, 2026.

---

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