Comparison

Subtraction Math vs Classroom Fluency Timer

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

Head to head
About

Subtraction Math

This educational game helps children aged 5-8 practice subtraction skills through engaging drills and multiple-choice questions. It offers a flexible learning pace with an optional timer and vibrant visuals to make arithmetic fun.

Highlights
  • Subtraction drills
  • Multiple choice format
  • Adjustable difficulty
  • Optional timer
  • Colorful graphics and sounds
  • Universal purchase
Features
Read full description

Subtraction with Ibbleobble is fun educational math game carefully designed for children aged 4+ but perfect for those aged between 5 - 8 who may be studying in the 1st and 2nd Grade and need to brush up on their arithmetic skills for school. Using a math drill technique this app will help children practice and learn how to subtract, develop their mental arithmetic, gain a feel for numbers and the relationships between them. We understand that everyone’s different, so our educational math games allow young learners to progress at their own pace, or take a challenge against the clock! We use a familiar multiple choice method designed with little hands in mind. We’ve also made this app available on all your devices with one single purchase. This way children can play and learn on the go with their iPhone, iPod or iPad whilst also on the big screen of the Apple TV! We all know that mental math can be challenging for kids but we at ibbleobble aim to show that math is fun too and doesn’t need to feel like school homework! • Subtraction worksheets • Simple gameplay • Multiple choice • Repetition to aid learning • 7 levels • Optional timer • Fantastic sounds and voice-over • Colourful characters • Vibrant graphics • No in-app purchases • No third-party advertising • 100% ALWAYS ad-free • Includes Fin animated iMessage stickers • Universal purchase (Available for iPhone, iPad, iPod and Apple TV) www.ibbleobble.com www.facebook.com/iblobl www.instagram.com/iblobl www.twitter.com/_iblobl If you enjoy playing Subtraction with Ibbleobble, we would really appreciate it if you could take the time to rate and review our app. If you experience any problems with the application or would just like to get in touch we'd like to hear from you. Please email us with full details at: apps@kidd.co Finally, remember to search Ibbleobble in the AppStore for more educational math games for kids!

About

Classroom Fluency Timer

This educational tool offers a flexible timer for classroom use, allowing educators to adjust time discreetly during activities. It features both a standard countdown mode and a specialized fluency timer designed for structured speaking exercises.

Highlights
  • Fudgeable timer for flexible time adjustments
  • Gesture controls for discreet time modification
  • Standard countdown timer mode
  • Specialized Fluency Timer for 4/3/2 activity
  • Customizable segment number and length
Features
Read full description

Fully fudgeable classroom timer! Timers are arbitrary by definition, and they will go off when they go off, which may not be when you want then to go off. But you can control thiss. Use gestures to discretely add or remove time to clock while it is active. This is very useful for classroom management. This timer has two modes: Standard Timer and Fluency Timer. The Fluency Timer was specifically designed for faciltating Paul Nation's 4/3/2 fluency activity where speakers repeat their ideas under progressively shorter time constraints. - Fully customisable for both the number and length of each segment. - Also functions as a standard countdown timer. - Allows you to add or remove time from the clock while the timer is active to facilitate classroom management. - Won't go to sleep while timer is active.

Screenshots

Subtraction Math4 screens
Classroom Fluency Timer2 screens

Verdict

The call

The clearest difference is price: Classroom Fluency Timer at Free against Subtraction Math's $1.99. Classroom Fluency Timer also leads on iOS requirement (8.0 vs 15.0). Subtraction Math's advantage is rating (3.9 vs 1.0) and ratings volume (7 vs 1). On update cadence, 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

Classroom Fluency Timer is free to download; Subtraction Math costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Subtraction Math holds the better App Store score, 3.9 against 1.0. That said, the two scores are not equally well evidenced: Subtraction Math has 7 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Subtraction Math ships an update every 4 months, Classroom Fluency Timer every 5 months. The most recent releases landed on September 22, 2026 and September 24, 2026 respectively.

Scorecard6 real differences · 4 level
Subtraction Math versus Classroom Fluency Timer: the parameters behind the verdict, then further details
ParameterSubtraction MathClassroom Fluency Timer
Price$1.99Free — better
Rating3.9 (7 ratings) — better1.0 (1 ratings)
Positive reviews50.0% of reviews—
Number of ratings7 — better1
Update frequencyEvery 4 months — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod, Mac, Apple TV — betteriPhone, iPad, iPod
Requires iOS15.08.0 — better
Further details — not scored
Size17 MB15 MB
Age rating4+4+
DeveloperKidDotCoJeff Holtzkener

Customer experience

Subtraction Math

All ratings7 ratings
Positive57.1%
Neutral28.6%
Negative14.3%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Classroom Fluency Timer

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Subtraction Math

No in-app purchases

None

Classroom Fluency Timer

No in-app purchases

Questions

Is Subtraction Math free?
Subtraction Math costs $1.99, with no in-app purchases.
Is Classroom Fluency Timer free?
Classroom Fluency Timer is free to download, with no in-app purchases.
Which has better reviews, Subtraction Math or Classroom Fluency Timer?
Subtraction Math is rated higher. Subtraction Math averages 3.9 out of 5 from 7 ratings, while Classroom Fluency Timer averages 1.0 from 1 ratings.
Do Subtraction Math or Classroom Fluency Timer have ads?
Neither Subtraction Math nor Classroom Fluency Timer shows ads.
Which is updated more often, Subtraction Math or Classroom Fluency Timer?
Subtraction Math ships an update every 4 months, and Classroom Fluency Timer every 5 months. Most recently, Subtraction Math was updated on September 22, 2026 and Classroom Fluency Timer on September 24, 2026.

Other comparisons