# Lock Master vs Rangefinder for Watch

The clearest difference is review sentiment: Lock Master at 50% against Rangefinder for Watch's 0%. Lock Master also leads on rating (3.8 vs 1.0) and ratings volume (6 vs 1). Rangefinder for Watch's advantage is iOS requirement (15.0 vs 18.5). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Lock Master costs $0.99 and Rangefinder for Watch $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Lock Master holds the better App Store score, 3.8 against 1.0. That said, the two scores are not equally well evidenced: Lock Master has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of Lock Master's written reviews are positive against 0% of Rangefinder for Watch's.

Lock Master ships an update every 27 months, Rangefinder for Watch every 40 months. The most recent releases landed on October 16, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Lock Master | Rangefinder for Watch |
| --- | --- | --- |
| Price | **$0.99** | $1.99 |
| Rating | **[3.8 (6 ratings)](https://appshunter.io/ios/app/lock-master/id348792868/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/rangefinder-for-watch/id1486878865/reviews) |
| Number of ratings | **6** | 1 |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 27 months** | Every 40 months |
| Monetization | Paid | Paid |
| Size | 17 MB | 2 MB |
| Requires iOS | 18.5 | **15.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPod, Apple Watch** |
| Age rating | 4+ | 9+ |
| Developer | [Patrick Q. Kelly](https://appshunter.io/developer/310068987) | [Orion Lukasz Gonerski](https://appshunter.io/developer/364982460) |

## What reviewers say

### Lock Master

[App page](https://appshunter.io/ios/app/lock-master/id348792868)

Securely store and manage all your lock combinations in one place. Never forget a code for your bicycle, gym, or storage unit locks again.

**Highlights:** Store lock combinations, Manage bicycle lock codes, Track gym lock codes, Organize storage unit codes, Simple interface

**Features:** Apple Watch app

**In-app purchases:** none


### Rangefinder for Watch

[App page](https://appshunter.io/ios/app/rangefinder-for-watch/id1486878865)

Measure straight-line distances directly from your wrist. Save favorite locations and view real-time distance readings on your watch face. Supports both imperial and metric units.

**Highlights:** Measure straight-line distance, Save favorite locations, Complications for live distance, Imperial and metric support, GPS coordinate saving

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Lock Master free?

Lock Master costs $0.99, with no in-app purchases.

### Is Rangefinder for Watch free?

Rangefinder for Watch costs $1.99, with no in-app purchases.

### Which has better reviews, Lock Master or Rangefinder for Watch?

Lock Master is rated higher. Lock Master averages 3.8 out of 5 from 6 ratings, while Rangefinder for Watch averages 1.0 from 1 ratings.

### Do Lock Master or Rangefinder for Watch have ads?

Neither Lock Master nor Rangefinder for Watch shows ads.

### Which is updated more often, Lock Master or Rangefinder for Watch?

Lock Master ships an update every 27 months, and Rangefinder for Watch every 40 months. Most recently, Lock Master was updated on October 16, 2026 and Rangefinder for Watch on October 21, 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.*