# Lock Master vs Receipt Tracker US

The clearest difference is price: Receipt Tracker US at Free against Lock Master's $0.99. Receipt Tracker US also leads on update cadence (every 4 months vs every 27 months) and review sentiment (67% vs 50%). On rating, ratings volume, ads and in-app purchases there is nothing between them.

Receipt Tracker US is free to download; Lock Master costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 3.8 for Lock Master against 3.7 for Receipt Tracker US. Both are backed by a comparable volume of ratings — 6 and 3 respectively. Written reviews are what separate them: 50% of Lock Master's written reviews are positive against 67% of Receipt Tracker US's.

Lock Master ships an update every 27 months, Receipt Tracker US every 4 months. The most recent releases landed on October 16, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Lock Master | Receipt Tracker US |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[3.8 (6 ratings)](https://appshunter.io/ios/app/lock-master/id348792868/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/receipt-tracker-us/id1447169955/reviews) |
| Number of ratings | **6** | 3 |
| Positive reviews | 50.0% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 4 months** |
| Monetization | Paid | **Free** |
| Size | 17 MB | 73 MB |
| Requires iOS | 18.5 | **12.1** |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Patrick Q. Kelly](https://appshunter.io/developer/310068987) | [Cobrans](https://appshunter.io/developer/1618530425) |

## 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


### Receipt Tracker US

[App page](https://appshunter.io/ios/app/receipt-tracker-us/id1447169955)

Capture images of receipts, bills, or letters to save and analyze. The app makes your documents searchable by text, allowing you to find them easily anytime, anywhere.

**Highlights:** Receipt capture via photo, Document analysis, Text search functionality, Organize bills and letters, Anytime, anywhere access

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Lock Master free?

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

### Is Receipt Tracker US free?

Receipt Tracker US is free to download, with no in-app purchases.

### Which has better reviews, Lock Master or Receipt Tracker US?

Lock Master is rated higher. Lock Master averages 3.8 out of 5 from 6 ratings, while Receipt Tracker US averages 3.7 from 3 ratings.

### Do Lock Master or Receipt Tracker US have ads?

Neither Lock Master nor Receipt Tracker US shows ads.

### Which is updated more often, Lock Master or Receipt Tracker US?

Lock Master ships an update every 27 months, and Receipt Tracker US every 4 months. Most recently, Lock Master was updated on October 16, 2026 and Receipt Tracker US on October 10, 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.*