# Flow vs AnyTimer

The clearest difference is update cadence: AnyTimer at every 9 days against Flow's monthly. AnyTimer also leads on iOS requirement (12.0 vs 15.6). On price, ads, 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.

Flow ships an update monthly, AnyTimer every 9 days. Both last shipped on October 7, 2026.

## The numbers

| Metric | Flow | AnyTimer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (27 ratings)](https://appshunter.io/ios/app/flow-air-pollution-sensor/id1332618814/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | 19.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 9 days** |
| Monetization | Free | — |
| Size | 69 MB | 43 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Plume Labs](https://appshunter.io/developer/950289242) | [Harish Kumar](https://appshunter.io/developer/1566509880) |

## What reviewers say

### Flow

[App page](https://appshunter.io/ios/app/flow-air-pollution-sensor/id1332618814)

This app visualizes air quality data collected by a personal sensor. It helps users understand their exposure to pollutants like PM2.5, PM10, NO2, and VOCs, offering insights to find cleaner air routes and identify pollution hotspots.

**Highlights:** Real-time pollution tracking (PM2.5, PM10, NO2, VOCs), Personal exposure reports, Air Quality Index (AQI) monitoring, Clean air route finding, Pollution hotspot identification, Daily and live data analysis

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

**In-app purchases:** none


### AnyTimer

[App page](https://appshunter.io/ios/app/anytimer-hiit/id1604063072)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Flow free?

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

### Is AnyTimer free?

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

### Do Flow or AnyTimer have ads?

Neither Flow nor AnyTimer shows ads.

### Which is updated more often, Flow or AnyTimer?

Flow ships an update monthly, and AnyTimer every 9 days. Most recently, Flow was updated on October 7, 2026 and AnyTimer on October 7, 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.*