# Oilmanac vs 55 M

The clearest difference is price: 55 M at Free against Oilmanac's $2.99. 55 M also leads on update cadence (every 2 weeks vs every 3 months) and iOS requirement (15.6 vs 18.0). On ads, in-app purchases and device support there is nothing between them.

55 M is free to download; Oilmanac costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Oilmanac ships an update every 3 months, 55 M every 2 weeks. The most recent releases landed on October 24, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Oilmanac | 55 M |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.0 (27 ratings)](https://appshunter.io/ios/app/oilmanac/id1453337134/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | 53.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Paid | — |
| Size | 10 MB | 169 MB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Starware Software LLC](https://appshunter.io/developer/988250389) | [55M DC Owner, LLC](https://appshunter.io/developer/1577213741) |

## What reviewers say

### Oilmanac

[App page](https://appshunter.io/ios/app/oilmanac/id1453337134)

Manage maintenance and service logs for small engine machines. Access model specifications and recommendations, track completed services, and set reminders for upcoming maintenance. Syncs data across iOS and macOS devices via iCloud.

**Highlights:** Machine maintenance management, Service log tracking, Model specification database, Maintenance reminders, Shopping list creation, iCloud sync

**Features:** Vision Pro support

**In-app purchases:** none


### 55 M

[App page](https://appshunter.io/ios/app/55-m/id1577213739)

**Features:** Apple Wallet, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Oilmanac free?

Oilmanac costs $2.99, with no in-app purchases.

### Is 55 M free?

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

### Do Oilmanac or 55 M have ads?

Neither Oilmanac nor 55 M shows ads.

### Which is updated more often, Oilmanac or 55 M?

Oilmanac ships an update every 3 months, and 55 M every 2 weeks. Most recently, Oilmanac was updated on October 24, 2026 and 55 M on October 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*