Comparison

Exploring The Core K vs TeachFX

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

Head to head
About

Exploring The Core K

This app visualizes Common Core State Standards for K-8 math, showing skill progression across grade levels. It serves as a reference for parents and educators to understand expected math skill sets.

Highlights
  • Visualizes K-8 math standards
  • Shows skill development across grades
  • Searchable standards
  • Glossary of education terms
  • Reference tool for parents and teachers
Features
Read full description

Exploring The Core: Elementary Math is the best way to *see* what is in the Common Core State Standards for Mathematics. Our math app presents all CCSS standards in Mathematics for grades K-8, illustrating each grade-level skill and aligning to show skill development across grade levels. With this app, teachers and parents can not only read the Common Core State Standards for each grade-level skill, but can also "swipe" to see how each skill develops in and between grade-levels. Searchable Standards and Glossary features eliminate the need for lugging heavy binders of standards and education-specific references around with you. Created by a teacher for teachers and parents, Exploring The Core: Elementary Math is the perfect tool for anybody wanting to understand the basic skill sets expected in the Common Core State Standards. This app serves as a reference tool for parents and teachers. It is not a curriculum and is not intended to serve as a primary teaching tool for students. Learn more at www.ExploringTheCore.com #exploringthecore

About

TeachFX

This tool helps educators gain insights into classroom learning dynamics by capturing and analyzing student-teacher conversations. It provides visible evidence of student engagement and instructional practices, fostering reflection and professional growth. The app is designed for privacy and personalization.

Highlights
  • Classroom talk ratio analysis
  • Academic language tracking
  • Questioning technique evaluation
  • Think time and turn-taking observation
  • Student participation patterns
  • Personalized and private data
Read full description

TeachFX is a tool designed for teachers that surfaces unique insights about the learning dynamics in the classroom—such as on ratios of talk, lesson design, academic language, questioning techniques, think time, turn taking, participation patterns and on many more instructional practices. Use it during instruction to capture the conversations between you and your students, and get visible evidence of student engagement. It’s all personalized and private to you, and designed to foster your reflection and growth. Try it out today!

Screenshots

Exploring The Core K4 screens
TeachFX4 screens

Verdict

The call

The clearest difference is rating: TeachFX at 5.0 against Exploring The Core K's 4.4. TeachFX also leads on in-app purchases (none vs 1) and update cadence (weekly vs every 5 weeks). Exploring The Core K's advantage is iOS requirement (8.0 vs 16.4). On price, ads 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. Exploring The Core K sells 1 one-off in-app purchase. TeachFX asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

TeachFX holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 7 and 21 respectively. Written reviews point the same way: 60% of Exploring The Core K's written reviews are positive against 75% of TeachFX's.

UpkeepUpdate frequency

Exploring The Core K ships an update every 5 weeks, TeachFX weekly. The most recent releases landed on September 26, 2026 and October 8, 2026 respectively.

Scorecard7 real differences · 3 level
Exploring The Core K versus TeachFX: the parameters behind the verdict, then further details
ParameterExploring The Core KTeachFX
PriceFreeFree
Rating4.4 (7 ratings)5.0 (21 ratings) — better
Positive reviews60.0% of reviews75.0% of reviews — better
Number of ratings721 — better
Update frequencyEvery 5 weeksWeekly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS8.0 — better16.4
Further details — not scored
Size35 MB65 MB
Age rating4+4+
DeveloperExploring The Core LLCTeachFX

Customer experience

Exploring The Core K

All ratings7 ratings
Positive71.4%
Neutral28.6%
Negative0.0%
Written reviews5 reviews
Positive60.0%
Neutral40.0%
Negative0.0%

TeachFX

All ratings21 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

In-app purchases

1 purchases

Exploring The Core K

One-time1
  • Unlock All Grades and Skills$2.99
None

TeachFX

No in-app purchases

Questions

Is Exploring The Core K free?
Exploring The Core K is free to download, with in-app purchases available.
Is TeachFX free?
TeachFX is free to download, with no in-app purchases.
Which has better reviews, Exploring The Core K or TeachFX?
TeachFX is rated higher. Exploring The Core K averages 4.4 out of 5 from 7 ratings, while TeachFX averages 5.0 from 21 ratings.
Do Exploring The Core K or TeachFX have ads?
Neither Exploring The Core K nor TeachFX shows ads.
Which is updated more often, Exploring The Core K or TeachFX?
Exploring The Core K ships an update every 5 weeks, and TeachFX weekly. Most recently, Exploring The Core K was updated on September 26, 2026 and TeachFX on October 8, 2026.

Other comparisons