Oilmanac vs Engine Service Log
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Oilmanac
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.
- Machine maintenance management
- Service log tracking
- Model specification database
- Maintenance reminders
- Shopping list creation
- iCloud sync
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Oilmanac is a maintenance manager and service log for all your machines with small engines. It keeps all your maintenance data in one convenient place - on your iPhone, iPad, or both. No need to dig out the user manual and page through it every year to perform routine maintenance on your machine. Pull up the machine in Oilmanac, and all the information you need to perform the maintenance is immediately available. Once the maintenance is completed, you can easily record all the services you performed in the Service Log tab. Enter your model specifications and maintenance recommendations for each machine from your user manual, or download them from the user database if available. A wide variety of machine types are available, including lawn mowers, lawn edgers, leaf blowers, yard vacuums, weed trimmers, hedge trimmers, tillers, power washers, water pumps, augers, chainsaws, log splitters, generators, snow blowers, outboard motors, personal water craft, all terrain vehicles, and snowmobiles. Available services are tailored to the specific machine, including oil and oil filter change, spark plug change, air filter clean and change, transmission/gear oil change for self propelled machines, grease, and others. Additional features: ∙ Automatically download model specifications and maintenance recommendations from the user database ∙ Complete service record for all your machines ∙ Create shopping lists for material needed for service: oil, filters, spark plugs and more ∙ Set reminders when service is due for each machine, or schedule annually ∙ iCloud sync: all your machine data is stored securely in your iCloud account, and is available on all your iOS and macOS devices logged into iCloud - iPhone and iPad, and now your Macs with Oilmanac for macOS. (Requires iCloud Drive. Oilmanac for macOS available as separate purchase on the Mac App Store.)
Engine Service Log
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Do you have a lot of equipment that needs maintenance? Easily keep track of all of your equipments service needs. Log oil changes and keep notes of the details of your service. Use across all of your devices with iCloud. Never forget a service again.
Screenshots
Verdict
The clearest difference is price: Engine Service Log at $1.99 against Oilmanac's $2.99. Engine Service Log also leads on iOS requirement (15.2 vs 18.0). On update cadence, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Oilmanac costs $2.99 and Engine Service Log $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Oilmanac ships an update every 3 months, Engine Service Log every 4 months. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.
| Parameter | Oilmanac | Engine Service Log |
|---|---|---|
| Price | $2.99 | $1.99 — better |
| Rating | 4.0 (27 ratings) — better | — |
| Positive reviews | 53.3% of reviews | — |
| Number of ratings | 27 — better | — |
| Update frequency | Every 3 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.2 — better |
| Further details — not scored | ||
| Size | 10 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Starware Software LLC | James C Hendryx |
In-app purchases
Oilmanac
No in-app purchases
Engine Service Log
No in-app purchases
Questions
Is Oilmanac free?
Is Engine Service Log free?
Do Oilmanac or Engine Service Log have ads?
Which is updated more often, Oilmanac or Engine Service Log?
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