# Watchlog vs BLESerial HM

The clearest difference is price: Watchlog at Free against BLESerial HM's $2.99. Watchlog also leads on update cadence (every 3 weeks vs every 6 months) and iOS requirement (10.0 vs 15.6). BLESerial HM's advantage is chart position (#177 vs unranked). On ads, in-app purchases and device support there is nothing between them.

Watchlog is free to download; BLESerial HM costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Watchlog ships an update every 3 weeks, BLESerial HM every 6 months. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Watchlog | BLESerial HM |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bleserial-hm-10/id1602239700/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 months |
| Monetization | — | Paid |
| Best chart rank | — | **#177** |
| Size | 35 MB | 5 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Hydrotechnik UK Test Engineering Ltd](https://appshunter.io/developer/1515531717) | [Ed Nieuwenhuys](https://appshunter.io/developer/1602239702) |

## What reviewers say

### Watchlog

[App page](https://appshunter.io/ios/app/watchlog/id1520386269)

**Features:** macOS Compatibility

**In-app purchases:** none


### BLESerial HM

[App page](https://appshunter.io/ios/app/bleserial-hm-10/id1602239700)

**Currently charting:** #177 Top Paid · Utilities (US App Store)

This utility app provides a direct serial terminal connection to HM-10 and CC2541 Bluetooth Low Energy modules. It allows real-time sending of commands and receiving of data without cables, featuring smart alerts for specific data patterns and full configurability for custom firmware.

**Highlights:** Connects to HM-10/CC2541 BLE modules, Real-time command sending and data receiving, Scans for nearby BLE devices, Auto-reconnect functionality, Configurable display formats (ASCII/hex), Smart alerts for data patterns, Supports custom firmware UUIDs

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Watchlog free?

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

### Is BLESerial HM free?

BLESerial HM costs $2.99, with no in-app purchases.

### Do Watchlog or BLESerial HM have ads?

Neither Watchlog nor BLESerial HM shows ads.

### Which is updated more often, Watchlog or BLESerial HM?

Watchlog ships an update every 3 weeks, and BLESerial HM every 6 months. Most recently, Watchlog was updated on October 25, 2026 and BLESerial HM on October 30, 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.*