Comparison

campGEO vs Skill Decay Tracker

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

Head to head
About

campGEO

This app offers audio discussions paired with visuals and transcripts for easier learning. Navigate audio content using images or text, and download materials for offline access. It's designed for convenient, on-the-go education.

Highlights
  • Audio discussions with key images
  • Linked transcripts for navigation
  • Offline listening support
  • Access to national parks books
  • Easy on-the-go learning
Features
Read full description

Learn easier with campGEO. Exciting audio discussions with all the images you need to learn. Think podcasts with key images included! You also get transcripts that are directly linked to the audio files, allowing you to use images or transcripts to easily navigate to the portion of the audio discussion that is most applicable. Learning and listening made easy! With hours of audio discussions linked to key images and transcripts, we have made learning on the go so much easier. You can download files to listen offline, gain access to books on national parks, and so much more. Download the app now to learn everything you need! If you are having technical issues, please contact us using the contact form here https://www.campcourses.com/contact, or reach out on social media channels by contacting @planetgeocast.

About

Skill Decay Tracker

Features
Read full description

Skill Decay Tracker uses the Ebbinghaus forgetting curve to show you exactly when your knowledge is fading — and stops it before it's gone. Add any skill you want to retain: a programming language, a spoken language, a framework, a concept, or anything custom. The app tracks how your memory decays over time and tells you which skills need attention today. PRACTICE WITH AI Each session generates fresh challenges tailored to your skill — multiple choice, true/false, and open-ended questions. Connect your own Claude, OpenAI, or Gemini API key for unlimited sessions, or use the built-in quota. KNOW YOUR WEAK SPOTS The health score for each skill updates in real time based on how long it's been since you last practiced and how well you did. Red means it's fading fast. Green means you're solid. TRACK YOUR PROGRESS — Activity heatmap across the last 12 weeks — XP and leveling system that rewards consistency — Per-skill accuracy and session history — Challenge type breakdown to spot patterns — Daily streaks to build a habit STAY ON TOP OF IT — Home screen widgets show your most at-risk skills at a glance — Daily reminder notifications at a time that works for you — Critical decay alerts when a skill drops below the danger threshold BUILT FOR DEPTH Skills are organized by category — Programming, Language, Tool, Concept, or Custom. You control the decay rate and question count for each skill. Everything syncs across your devices via iCloud. PRO Unlock unlimited skills, higher question counts per session, and full analytics. Or use your own API key to get Pro-equivalent access without a subscription. Available in English and Russian. Terms of Use: https://paul-kltsk.github.io/skill-decay-tracker/terms.html Privacy Policy: https://paul-kltsk.github.io/skill-decay-tracker/privacy.html

Screenshots

campGEO4 screens
Skill Decay Tracker4 screens

Verdict

The call

The clearest difference is device support: campGEO at 3 against Skill Decay Tracker's 1. campGEO also leads on iOS requirement (15.6 vs 18.6). On price, ads and in-app purchases 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. campGEO sells 10 one-off in-app purchases and Skill Decay Tracker sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard2 real differences · 8 level
campGEO versus Skill Decay Tracker: the parameters behind the verdict, then further details
ParametercampGEOSkill Decay Tracker
PriceFreeFree
Rating4.8 (24 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings24 — better—
Update frequencyEvery 2 weeks—
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better18.6
Further details — not scored
Size53 MB6 MB
Age rating4+4+
DeveloperCamp CoursesPavel Kulitski

In-app purchases

10 purchases

campGEO

One-time10
  • Earth's Climate$3.99
  • The Geology of Mammoth Cave$6.99
  • Earth's Oldest Rocks$8.99
Show 7 more
  • Long Valley Caldera$9.99
  • Geology Rocks!$14.99
  • Gettysburg$14.99
  • Roadside Geology of Colorado$24.99
  • The Grand Tetons$24.99
  • Yellowstone National Park$29.99
  • The Grand Canyon$29.99
2 purchases

Skill Decay Tracker

Subscriptions2
  • Pro Monthly$5.991 Month
  • Pro Annual$59.991 Year

Questions

Is campGEO free?
campGEO is free to download, with in-app purchases available.
Is Skill Decay Tracker free?
Skill Decay Tracker is free to download, with in-app purchases available.
Do campGEO or Skill Decay Tracker have ads?
Neither campGEO nor Skill Decay Tracker shows ads.

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