Comparison

SimpleGPSApp Lesson 01 vs Accessible Colors

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

Head to head
About

SimpleGPSApp Lesson 01

Features
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GREAT FUN - GPS 3D MapKit & Speedometer iOS Project - showing RAW GPS Speed of MTS (Meters per Second) & hundredths MPH & KMPH! On the way to Full Level 5 Self Driving for a new EV we are developing (by Summer 2022), this XCODE project is yours, with lots of useful, very simplified code/methods you can copy and use in your own project, Xcode 13, Swift 5, available to copy to your desktop using iTunes/Music File Share. Beginner to Advanced iOS Developer Lessons! We have always learned best and quickest by looking at working App's. Included in this lesson is the full XCODE PROJECT itself for you to use in your own App projects, saving you months of headache to find the answers!:*) We will make you understand! This is the first in a series to help ALL other Apple iOS, iPhone/iPad App Developers, Beginners to Advanced. We've kept the code very, very simple so a 9 year old could get it! Feel free to use any part of this project in your own projects. These are things that have taken months to learn all in this very optimized code for iPhone/iPad App. The Xcode Project is included within the app and can be copied from the iTunes/Music File Share app to your desktop. Highlights in this lesson includes; LocationManager, CLLocationManager, GPS, Speed MPH and KMPH conversion, 3D MapKit, Tracking Mode, iTunes File Sharing, Web/URL link, Buttons with Automated Titles, printing app events to Console/Debug Area, converting large decimal numbers to 2 place, labels, buttons, switches, Case/Logic Switch in Swift, rounding to integer of decimal numbers, variables, integers, text, hidden lessons include a vertical slider and much more! We have plans for many more in the near future! AND if you're interested in getting involved in our LEVEL 5, FULL SELF DRIVING EV PROJECT (for Summer 2022), contact us via our WebSite! CODING IS FUN! JOHNAVATAR.com Pacific Palisades, CA 90402

About

Accessible Colors

Instantly verify color contrast ratios to meet WCAG accessibility standards. Supports HEX, RGB, and includes a color picker for seamless integration into your workflow. Aids in creating inclusive and highly readable designs for websites and applications.

Highlights
  • Real-time contrast checking
  • WCAG 2.1 AA & AAA validation
  • HEX, RGB, and color picker support
  • Color blindness simulation
  • Save and manage color palettes
  • Minimalist interface
Features
Read full description

Check color contrasts in seconds and ensure your designs meet WCAG guidelines (AA & AAA). Perfect for designers, developers, and accessibility professionals. Features: • Real-time contrast checking • WCAG 2.1 AA & AAA validation • Support for HEX, RGB & handy color picker • Color blindness simulation • Save and manage color palettes • Fast, minimalist interface Whether it’s a website, app, or UI, Accessible Colors helps you create accessible, highly readable color combinations in no time. Make your designs inclusive and improve the user experience for everyone.

Screenshots

SimpleGPSApp Lesson 014 screens
Accessible Colors4 screens

Verdict

The call

The clearest difference is update cadence: Accessible Colors at daily against SimpleGPSApp Lesson 01's every 16 months. SimpleGPSApp Lesson 01's advantage is iOS requirement (15.0 vs 18.0). On price, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

SimpleGPSApp Lesson 01 ships an update every 16 months, Accessible Colors daily. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

Scorecard2 real differences · 7 level
SimpleGPSApp Lesson 01 versus Accessible Colors: the parameters behind the verdict, then further details
ParameterSimpleGPSApp Lesson 01Accessible Colors
PriceFreeFree
Rating—1.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 16 monthsDaily — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18.0
Further details — not scored
Size8 MB6 MB
Age rating4+4+
DeveloperJohn AvatarFritz Krailinger

In-app purchases

None

SimpleGPSApp Lesson 01

No in-app purchases

None

Accessible Colors

No in-app purchases

Questions

Is SimpleGPSApp Lesson 01 free?
SimpleGPSApp Lesson 01 is free to download, with no in-app purchases.
Is Accessible Colors free?
Accessible Colors is free to download, with no in-app purchases.
Do SimpleGPSApp Lesson 01 or Accessible Colors have ads?
Neither SimpleGPSApp Lesson 01 nor Accessible Colors shows ads.
Which is updated more often, SimpleGPSApp Lesson 01 or Accessible Colors?
SimpleGPSApp Lesson 01 ships an update every 16 months, and Accessible Colors daily. Most recently, SimpleGPSApp Lesson 01 was updated on November 7, 2026 and Accessible Colors on November 3, 2026.

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