# Holowork vs SIDO

The clearest difference is in-app purchases: Holowork at none against SIDO's 2. SIDO's advantage is iOS requirement (17.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. SIDO sells 2 in-app purchases, starting at $3.99 per month. Holowork asks for nothing beyond the download.

Holowork ships an update every 9 days, SIDO every 6 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Holowork | SIDO |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 6 days** |
| Monetization | Free | — |
| Size | 20 MB | 70 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nante Studio](https://appshunter.io/developer/1700809099) | [AEJIN SEO](https://appshunter.io/developer/1896585301) |

## What reviewers say

### Holowork

[App page](https://appshunter.io/ios/app/holowork-focus-timer/id6742745490)

This app helps you manage your time and stay present with a unique focus timer. Earn rewards by concentrating, and enjoy a calming break with a virtual companion. Track your progress to build a consistent focus habit.

**Highlights:** Gamified focus timer, Distraction blocking, Daily focus time tracking, Virtual companion interaction, Progress visualization

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

**In-app purchases:** none


### SIDO

[App page](https://appshunter.io/ios/app/sido/id6768559309)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SIDO Pro 월간 | $3.99 | per month |
| SIDO Pro 연간 | $29.99 | per year |


## Frequently asked questions

### Is Holowork free?

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

### Is SIDO free?

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

### Do Holowork or SIDO have ads?

Neither Holowork nor SIDO shows ads.

### Which is updated more often, Holowork or SIDO?

Holowork ships an update every 9 days, and SIDO every 6 days. Most recently, Holowork was updated on October 30, 2026 and SIDO on October 31, 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.*