# InverFlow vs Narby

The clearest difference is in-app purchases: InverFlow at none against Narby's 3. InverFlow also leads on iOS requirement (14.0 vs 26.0). Narby's advantage is update cadence (fortnightly vs every 14 months). On price, ads and device support there is nothing between them.

Both are free to download. Narby sells 3 one-off in-app purchases. InverFlow asks for nothing beyond the download.

InverFlow ships an update every 14 months, Narby fortnightly. The most recent releases landed on October 2, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | InverFlow | Narby |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/inverflow/id1600378128/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 224 MB | 14 MB |
| Requires iOS | **14.0** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [彬 陈](https://appshunter.io/developer/1497463954) | [FRESHLAB IBERIA SLU](https://appshunter.io/developer/6801504016) |

## What reviewers say

### InverFlow

[App page](https://appshunter.io/ios/app/inverflow/id1600378128)

Control your pool pump remotely and manage its settings. Select AI or manual modes, adjust running speed and flow rate, and set timers for automated operation. Compatible with other pool devices.

**Highlights:** Remote pump control, AI/MI mode selection, Running speed adjustment, Flow rate setting, Timer functionality, Pool device compatibility

**Features:** Vision Pro support

**In-app purchases:** none


### Narby

[App page](https://appshunter.io/ios/app/narby-split-the-bill/id6803682721)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy us a coffee | $1.99 | one-time |
| Buy us a tapa | $3.99 | one-time |
| Buy us dinner | $8.99 | one-time |


## Frequently asked questions

### Is InverFlow free?

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

### Is Narby free?

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

### Do InverFlow or Narby have ads?

Neither InverFlow nor Narby shows ads.

### Which is updated more often, InverFlow or Narby?

InverFlow ships an update every 14 months, and Narby fortnightly. Most recently, InverFlow was updated on October 2, 2026 and Narby on October 4, 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.*