# Oil Specifications vs Hiram's Vault

The clearest difference is review sentiment: Hiram's Vault at 100% against Oil Specifications's 0%. Hiram's Vault also leads on price (Free vs $4.99) and update cadence (every 2 weeks vs every 10 months). On ads, in-app purchases and device support there is nothing between them.

Hiram's Vault is free to download; Oil Specifications costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Oil Specifications ships an update every 10 months, Hiram's Vault every 2 weeks. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Oil Specifications | Hiram's Vault |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/hirams-vault/id6740757534/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 2 weeks** |
| Monetization | Paid | **Free** |
| Size | 38 MB | 53 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [My Web Kft.](https://appshunter.io/developer/1099490781) | [Jason Amick](https://appshunter.io/developer/1794664142) |

## What reviewers say

### Oil Specifications

[App page](https://appshunter.io/ios/app/oil-specifications/id1099490782)

Access detailed technical information on lubricants, including motor and gear oil specifications and standards. Learn about key industry organizations and OEM requirements, with articles addressing common lubrication issues.

**Highlights:** Lubricant and oil specifications, Industry standards (API, ACEA), OEM specifications, Articles on lubrication issues, Consumer-friendly language, Information on key organizations

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

**In-app purchases:** none


### Hiram's Vault

[App page](https://appshunter.io/ios/app/hirams-vault/id6740757534)

Discover and connect with Masonic events through a unified platform. Facilitates communication and information sharing for members.

**Highlights:** Masonic event listings, Centralized communication, Information sharing, Event discovery

**In-app purchases:** none


## Frequently asked questions

### Is Oil Specifications free?

Oil Specifications costs $4.99, with no in-app purchases.

### Is Hiram's Vault free?

Hiram's Vault is free to download, with no in-app purchases.

### Do Oil Specifications or Hiram's Vault have ads?

Neither Oil Specifications nor Hiram's Vault shows ads.

### Which is updated more often, Oil Specifications or Hiram's Vault?

Oil Specifications ships an update every 10 months, and Hiram's Vault every 2 weeks. Most recently, Oil Specifications was updated on November 2, 2026 and Hiram's Vault 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.*