# SolarFocus vs Liminal Time

The clearest difference is price: SolarFocus at Free against Liminal Time's $1.99. Liminal Time's advantage is in-app purchases (none vs 3). On update cadence, ads, device support and iOS requirement there is nothing between them.

SolarFocus is free to download; Liminal Time costs $1.99 up front. SolarFocus sells 3 in-app purchases, starting at $1.99 per month. Liminal Time asks for nothing beyond the download.

SolarFocus ships an update weekly, Liminal Time every 11 days. The most recent releases landed on October 15, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | SolarFocus | Liminal Time |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/liminal-time/id6761309728/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 11 days |
| Monetization | — | Paid |
| Size | 42 MB | 108 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [厚然 曾](https://appshunter.io/developer/1804756359) | [嘉远 李](https://appshunter.io/developer/1887795084) |

## What reviewers say

### SolarFocus

[App page](https://appshunter.io/ios/app/solarfocus-space-pomodoro/id6744120438)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 行星专注 Pro - 月度订阅 | $1.99 | per month |
| 专注行星 Pro - 年度订阅 | $5.99 | per year |
| SolarFocus Pro - Lifetime | $17.99 | one-time |


### Liminal Time

[App page](https://appshunter.io/ios/app/liminal-time/id6761309728)

This app transforms focus time into a visual journey through space. Choose from celestial worlds like planets and black holes, each with its own unique clock rhythm. Track your sessions and enjoy an uncluttered, single-screen experience.

**Highlights:** Celestial world themes, Customizable focus durations, Local time preview, Session tracking and achievements, Desk-clock view, Multi-language support

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

**In-app purchases:** none


## Frequently asked questions

### Is SolarFocus free?

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

### Is Liminal Time free?

Liminal Time costs $1.99, with no in-app purchases.

### Do SolarFocus or Liminal Time have ads?

Neither SolarFocus nor Liminal Time shows ads.

### Which is updated more often, SolarFocus or Liminal Time?

SolarFocus ships an update weekly, and Liminal Time every 11 days. Most recently, SolarFocus was updated on October 15, 2026 and Liminal Time on October 13, 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.*