# RIN Locator vs ALTOTRACK

RIN Locator and ALTOTRACK are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

RIN Locator ships an update every 18 months, ALTOTRACK every 26 months. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | RIN Locator | ALTOTRACK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (8 ratings)](https://appshunter.io/ios/app/rin-locator/id954888821/reviews)** | — |
| Number of ratings | **8** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 18 months** | Every 26 months |
| Monetization | Free | — |
| Size | 29 MB | 113 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pipeline and Hazardous Materials Safety Administration](https://appshunter.io/developer/954888820) | [ALTO SARL](https://appshunter.io/developer/1680210885) |

## What reviewers say

### RIN Locator

[App page](https://appshunter.io/ios/app/rin-locator/id954888821)

Find approved cylinder requalifiers by city, state, or zip code. Get addresses, contact details, and authorized testing methods for each entity. This tool helps users locate qualified professionals for cylinder inspection and certification.

**Highlights:** Search by city, state, or zip code, View requalifier addresses, Access contact information, See authorized testing methods, Check cylinder specifications

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### ALTOTRACK

[App page](https://appshunter.io/ios/app/altotrack/id6447070840)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RIN Locator free?

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

### Is ALTOTRACK free?

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

### Do RIN Locator or ALTOTRACK have ads?

Neither RIN Locator nor ALTOTRACK shows ads.

### Which is updated more often, RIN Locator or ALTOTRACK?

RIN Locator ships an update every 18 months, and ALTOTRACK every 26 months. Most recently, RIN Locator was updated on October 24, 2026 and ALTOTRACK on October 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.*