# PupFocus vs Stellar Flow

The clearest difference is ads: PupFocus at none against Stellar Flow's shown. PupFocus also leads on iOS requirement (16.6 vs 18.0). Stellar Flow's advantage is update cadence (every 3 days vs every 10 days). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PupFocus ships an update every 10 days, Stellar Flow every 3 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | PupFocus | Stellar Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/stellar-flow-focus-timer/id6757545517/reviews)** |
| Number of ratings | — | **4** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 10 days | **Every 3 days** |
| Monetization | — | Ad-supported |
| Size | 144 MB | 45 MB |
| Requires iOS | **16.6** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kim Long Le](https://appshunter.io/developer/1486526017) | [Alexander Heemann](https://appshunter.io/developer/587278115) |

## What reviewers say

### PupFocus

[App page](https://appshunter.io/ios/app/pupfocus-deep-work-timer/id6756576591)

**Features:** macOS Compatibility

**In-app purchases:** none


### Stellar Flow

[App page](https://appshunter.io/ios/app/stellar-flow-focus-timer/id6757545517)

Transform focus sessions into an interstellar adventure. Earn resources, upgrade your starship, and explore a vast galaxy as you complete work, study, or meditation missions. Track your progress with detailed statistics and enjoy immersive soundscapes.

**Highlights:** Gamified focus sessions, Galaxy exploration map, Ship upgrading and customization, Immersive ambient soundscapes, Progress tracking and statistics, Live Activities support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PupFocus free?

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

### Is Stellar Flow free?

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

### Do PupFocus or Stellar Flow have ads?

Stellar Flow shows ads; PupFocus does not.

### Which is updated more often, PupFocus or Stellar Flow?

PupFocus ships an update every 10 days, and Stellar Flow every 3 days. Most recently, PupFocus was updated on October 25, 2026 and Stellar Flow on October 25, 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.*