Comparison

Oilmanac vs Engine Service Log

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Machine maintenance management
  • Service log tracking
  • Model specification database
  • Maintenance reminders
  • Shopping list creation
  • iCloud sync
Features
Read full description

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.)

About

Engine Service Log

Features
Read full description

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

Oilmanac4 screens
Engine Service Log3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard2 real differences · 8 level
Oilmanac versus Engine Service Log: the parameters behind the verdict, then further details
ParameterOilmanacEngine Service Log
Price$2.99$1.99 — better
Rating4.0 (27 ratings) — better—
Positive reviews53.3% of reviews—
Number of ratings27 — better—
Update frequencyEvery 3 months — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.2 — better
Further details — not scored
Size10 MB1 MB
Age rating4+4+
DeveloperStarware Software LLCJames C Hendryx

In-app purchases

None

Oilmanac

No in-app purchases

None

Engine Service Log

No in-app purchases

Questions

Is Oilmanac free?
Oilmanac costs $2.99, with no in-app purchases.
Is Engine Service Log free?
Engine Service Log costs $1.99, with no in-app purchases.
Do Oilmanac or Engine Service Log have ads?
Neither Oilmanac nor Engine Service Log shows ads.
Which is updated more often, Oilmanac or Engine Service Log?
Oilmanac ships an update every 3 months, and Engine Service Log every 4 months. Most recently, Oilmanac was updated on October 24, 2026 and Engine Service Log on October 8, 2026.

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