# TBD vs GC Flowmeter App

The clearest difference is update cadence: GC Flowmeter App at every 9 days against TBD's every 5 weeks. TBD's advantage is iOS requirement (13.0 vs 16.6). 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.

TBD ships an update every 5 weeks, GC Flowmeter App every 9 days. The most recent releases landed on September 21, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | TBD | GC Flowmeter App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 9 days** |
| Size | 19 MB | 115 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | iPhone, iPod | iPhone, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Hangzhou Dashi Wisdom Technology Co., Ltd.](https://appshunter.io/developer/1822219570) | [Aquametrics Sarl](https://appshunter.io/developer/6787924997) |

## What reviewers say

### TBD

[App page](https://appshunter.io/ios/app/tbd-flowmeter/id1632862012)

**Features:** macOS Compatibility

**In-app purchases:** none


### GC Flowmeter App

[App page](https://appshunter.io/ios/app/gc-flowmeter-app/id6787924995)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is TBD free?

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

### Is GC Flowmeter App free?

GC Flowmeter App is free to download, with no in-app purchases.

### Do TBD or GC Flowmeter App have ads?

Neither TBD nor GC Flowmeter App shows ads.

### Which is updated more often, TBD or GC Flowmeter App?

TBD ships an update every 5 weeks, and GC Flowmeter App every 9 days. Most recently, TBD was updated on September 21, 2026 and GC Flowmeter App on September 20, 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.*