# BPM Calc vs Flow

The clearest difference is price: BPM Calc at Free against Flow's $4.99. BPM Calc also leads on iOS requirement (15.2 vs 17.0). Flow's advantage is update cadence (every 5 weeks vs every 5 months). On ads, in-app purchases and device support there is nothing between them.

BPM Calc is free to download; Flow costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

BPM Calc ships an update every 5 months, Flow every 5 weeks. The most recent releases landed on September 9, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | BPM Calc | Flow |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 5 weeks** |
| Size | 2 MB | 4 MB |
| Requires iOS | **15.2** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Bev Fremin](https://appshunter.io/developer/1575107004) | [Ibrahim Sefa Tuna](https://appshunter.io/developer/1877553788) |

## What reviewers say

### BPM Calc

[App page](https://appshunter.io/ios/app/bpm-calc/id1629516593)

**Features:** macOS Compatibility

**In-app purchases:** none


### Flow

[App page](https://appshunter.io/ios/app/flow-sensor-data-pipeline/id6761208127)

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

**In-app purchases:** none


## Frequently asked questions

### Is BPM Calc free?

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

### Is Flow free?

Flow costs $4.99, with no in-app purchases.

### Do BPM Calc or Flow have ads?

Neither BPM Calc nor Flow shows ads.

### Which is updated more often, BPM Calc or Flow?

BPM Calc ships an update every 5 months, and Flow every 5 weeks. Most recently, BPM Calc was updated on September 9, 2026 and Flow on September 8, 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.*