Comparison

Simplex vs Car Maintenance

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

Head to head
About

Simplex

Features
Read full description

Simplexβ„’ is a generic tool to support participative observation networks. The Simplexβ„’ smart app is one component of a more complete observation system that, in addition to the app, comprises a webGIS interface and a database. The application allows you to do any kind of thematic observation by driving the observers step by step, through explicit icons, to the right observation item, and to finally declare it (with our without photo) with geographical and spatial stamp. Observers have access at any time and any location to environmental data for the last three days that are extracted on-demand from environmental databases. At each observation are attached selected environmental parameters that allows, at any time, to correlate some observations with environmental context. Simplexβ„’ can host several observation networks, either of public type (i.e. open to anyone) or of private type. You can contract a license for a private one to create your own network. The license covers the configuration of the observation campaign (i.e. the selection and the hierarchy of icons and the required environmental parameters, if of interest to you). It also covers an access to a private webGIS that provides a synoptic view of the observation done by your network. Your data is kept safely on a private storage without any access by a third-party. Once created you can invite anyone you want to become an observer to your network. You can also easily change and adapt the icons at all time. The app allows on-line discussion (text) between network organizer and observers. Simplexβ„’ app is available in several languages (Arabic, English, French, German, Italian, Norwegian and Spanish). Want to create your own network or need for more information? Please contact simplex@acri.fr

About

Car Maintenance

Features
Read full description

Never miss another oil change or inspection. Car Maintenance Tracker keeps every vehicle you own serviced on time, with a complete log of mileage, fuel, repairs, and paperwork in one place. Most people juggle service dates in their head, receipts in the glovebox, and insurance cards in a drawer. This app pulls all of it into a single garage on your iPhone β€” no account, no spreadsheet, no guesswork about what is due next. WHAT YOU GET - A garage that holds every car and bike, each with its own photo, make, model, and year - Maintenance reminders that alert you before an oil change, tire rotation, or inspection comes due - A running fuel and odometer log with clear charts so you can spot trends over time - Registration, insurance, and inspection papers stored and linked to the right vehicle - Camera capture that scans registration and insurance cards straight into the app - A status view for oil life and tire pressure, plus a map that saves exactly where you parked PERFECT FOR - Owners of more than one vehicle who need every car and bike in one garage - Drivers who want reminders instead of overdue service and surprise repairs - Anyone tired of digging through the glovebox for their insurance or registration - Careful owners who track spending and mileage to protect resale value WHY NOT JUST USE NOTES OR A SPREADSHEET A notes app will not remind you before a service is due, chart your mileage, or keep a scanned insurance card next to the right car. This app connects the log, the reminders, and the documents so nothing slips through. PRIVACY Everything stays on your device. No account, no cloud sync, no ads, and no tracking. FULL ACCESS Key Connect Pro unlocks unlimited vehicles, full document storage, camera scanning of registration and insurance cards, complete maintenance history, and every chart. Available as a weekly, yearly, or one-time lifetime purchase. Add your first vehicle today and take control of your garage. Terms of Use (EULA): https://web-levi.web.app/terms Privacy Policy: https://web-levi.web.app/privacy-policy Questions? tphuc.work@gmail.com

Screenshots

Simplex4 screens
Car Maintenance4 screens

Verdict

The call

The clearest difference is in-app purchases: Simplex at none against Car Maintenance's 3. Simplex also leads on iOS requirement (9.0 vs 17.0). Car Maintenance's advantage is update cadence (monthly vs every 4 months). On price, ads and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Car Maintenance sells 3 in-app purchases, starting at $2.99 per 7 days. Simplex asks for nothing beyond the download.

UpkeepUpdate frequency

Simplex ships an update every 4 months, Car Maintenance monthly. The most recent releases landed on November 2, 2026 and October 25, 2026 respectively.

Scorecard3 real differences Β· 3 level
Simplex versus Car Maintenance: the parameters behind the verdict, then further details
ParameterSimplexCar Maintenance
PriceFreeFree
Update frequencyEvery 4 monthsMonthly β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPod β€” betteriPhone
Requires iOS9.0 β€” better17.0
Further details β€” not scored
Size34 MB6 MB
Age rating4+4+
DeveloperACRIPhuc Pham

In-app purchases

None

Simplex

No in-app purchases

3 purchases

Car Maintenance

Subscriptions2
  • Weekly Premium$2.997 Days
  • Annual Premium$14.991 Year
One-time1
  • Lifetime Premium$29.99

Questions

Is Simplex free?
Simplex is free to download, with no in-app purchases.
Is Car Maintenance free?
Car Maintenance is free to download, with in-app purchases available.
Do Simplex or Car Maintenance have ads?
Neither Simplex nor Car Maintenance shows ads.
Which is updated more often, Simplex or Car Maintenance?
Simplex ships an update every 4 months, and Car Maintenance monthly. Most recently, Simplex was updated on November 2, 2026 and Car Maintenance on October 25, 2026.

Other comparisons