Comparison

Terrific Triangle vs calculets PRO

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

Head to head
About

Terrific Triangle

Practice math fact families for addition, subtraction, multiplication, and division. This educational tool offers individual fact practice with a score and adjustable difficulty, including an optional timer. It's a free, ad-free way to master number relationships.

Highlights
  • Fact family practice
  • Addition/subtraction drills
  • Multiplication/division drills
  • Adjustable difficulty
  • Optional timer
  • Running score
Features
Read full description

A math facts drill-and-practice program that teaches fact families for both addition/subtraction and multiplication/division. Terrific Triangle allows individual facts practice with a running score for correct answers. The player may select a difficulty level and whether to play against a timer. The triangle presents two parts of a fact family and the player must determine the missing third part. The sum and product always appear at the top of the triangle. The addends and factors always go in the two lower corners. This app contains no ads or links to social media. Just FREE.

About

calculets PRO

A straightforward math game designed to help users practice basic arithmetic operations like addition, subtraction, multiplication, and division. Players combine numbers to reach a target number, offering a fun way to improve foundational math skills.

Highlights
  • Practice addition, subtraction, multiplication, division
  • Combine numbers to reach a target
  • Undo operations feature
  • Multiple difficulty levels
  • Ad-free experience
Features
Read full description

calculets PRO! Very simple maths game for initial arithmetics. Ads free. Practice maths facts: addition, subtraction, multiplication and division. What is this game about? Remember "Letters and Numbers" TV game? "calculets" is a simple, easy version of the Numbers part of "Letters and Numbers" TV show. How to play Calculitos? START: Upon start, after choosing one of the three available levels, you find: - 6 numbers inside bubbles, in the center square - one more "target" number, at bottom right of the display GOAL: You have to reach the "target" number, by combining the bubbles with: + addition - subtraction × multiplication ÷ division DYNAMICS: Drag two bubbles into the box with symbol + and they will be added. And just the same to subtract, multiply or divide: drag the bubbles to the boxes marked with -, × & ÷ . sssshhh... tip: Undo an operation: Double tap a pinky bubble to split it back to the original two bubbles-numbers. Play calculets PRO!

Screenshots

Terrific Triangle4 screens
calculets PRO2 screens

Verdict

The call

The clearest difference is review sentiment: Terrific Triangle at 67% against calculets PRO's 0%. Terrific Triangle also leads on price (Free vs $0.99) and ratings volume (5 vs 1). calculets PRO's advantage is rating (5.0 vs 4.0) and update cadence (every 4 months vs every 10 months). On ads, in-app purchases, device support and iOS requirement 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

Terrific Triangle is free to download; calculets PRO costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

calculets PRO holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Terrific Triangle has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 67% of Terrific Triangle's written reviews are positive against 0% of calculets PRO's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Terrific Triangle ships an update every 10 months, calculets PRO every 4 months. The most recent releases landed on October 1, 2026 and October 21, 2026 respectively.

Scorecard6 real differences · 4 level
Terrific Triangle versus calculets PRO: the parameters behind the verdict, then further details
ParameterTerrific Trianglecalculets PRO
PriceFree — better$0.99
Rating4.0 (5 ratings)5.0 (1 ratings) — better
Positive reviews66.7% of reviews — better0.0% of reviews
Number of ratings5 — better1
Update frequencyEvery 10 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0.0 — better12.2
Further details — not scored
Size32 MB10 MB
Age rating4+4+
DeveloperElementary SoftwareJaime C. Carriedo

Customer experience

Terrific Triangle

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

calculets PRO

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Terrific Triangle

No in-app purchases

None

calculets PRO

No in-app purchases

Questions

Is Terrific Triangle free?
Terrific Triangle is free to download, with no in-app purchases.
Is calculets PRO free?
calculets PRO costs $0.99, with no in-app purchases.
Which has better reviews, Terrific Triangle or calculets PRO?
calculets PRO is rated higher. Terrific Triangle averages 4.0 out of 5 from 5 ratings, while calculets PRO averages 5.0 from 1 ratings.
Do Terrific Triangle or calculets PRO have ads?
Neither Terrific Triangle nor calculets PRO shows ads.
Which is updated more often, Terrific Triangle or calculets PRO?
Terrific Triangle ships an update every 10 months, and calculets PRO every 4 months. Most recently, Terrific Triangle was updated on October 1, 2026 and calculets PRO on October 21, 2026.

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