# FLOWatch vs Hackers Memo

The clearest difference is ads: FLOWatch at none against Hackers Memo's shown. Hackers Memo's advantage is update cadence (every 5 days vs every 3 months) and iOS requirement (13.0 vs 15.0). 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.

FLOWatch ships an update every 3 months, Hackers Memo every 5 days. The most recent releases landed on September 17, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | FLOWatch | Hackers Memo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/flowatch/id1426926421/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 29 MB | 27 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [FLOWatch LLC](https://appshunter.io/developer/1426926420) | [Toshihide KAWAI](https://appshunter.io/developer/1598098272) |

## What reviewers say

### FLOWatch

[App page](https://appshunter.io/ios/app/flowatch/id1426926421)

This app helps manage operational data for water and wastewater treatment plants. It tracks data, manages assets, and handles work orders and compliance reporting, even in areas with limited connectivity.

**Highlights:** Track water quality data, Manage plant assets, Work order management, Compliance reporting, Offline data storage, Mobile and web integration

**Features:** macOS Compatibility

**In-app purchases:** none


### Hackers Memo

[App page](https://appshunter.io/ios/app/hackers-memo/id6532588734)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is FLOWatch free?

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

### Is Hackers Memo free?

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

### Do FLOWatch or Hackers Memo have ads?

Hackers Memo shows ads; FLOWatch does not.

### Which is updated more often, FLOWatch or Hackers Memo?

FLOWatch ships an update every 3 months, and Hackers Memo every 5 days. Most recently, FLOWatch was updated on September 17, 2026 and Hackers Memo on September 12, 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.*