Comparison

4 = 1 vs Calco

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

Head to head
About

4 = 1

Features
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Solve fun math puzzles! Each puzzle is unique and has at least one possible solution. Use operators to form creative and complex equations. Created by Cory Tripathy and Zoe Cutler

About

Calco

Features
Read full description

Calco is an engaging and educational mathematics game suitable for individuals of all ages. It offers a comprehensive approach to enhancing mathematical proficiency, providing players with the opportunity to challenge their cognitive abilities while simultaneously saving adorable animals. Key Features: * Game Center Leaderboards: Engage in global competitions with friends and fellow players. Monitor your progress and rank among the top performers. * Multiple Difficulty Levels: Select from Easy, Medium, or Hard difficulty options to align with your skill level and maintain the challenge. * Beautiful and Intuitive Design: Experience a clean and modern interface that enhances the learning and gameplay experience. * Quick Rounds: Ideal for short play sessions or extended brain-training sessions. * Educational and Fun: Suitable for children, students, and adults seeking to enhance their mathematical skills in an enjoyable manner. * Ad-Supported: Free to play with non-intrusive advertisements that contribute to the game’s development. Gameplay Mechanics: * Solve Math Problems: Challenge yourself to solve mathematical problems within a specified time frame. * Select Correct Answer: Choose the appropriate answer from multiple options. * Maintain Streak: Earn bonus points and higher scores by maintaining a streak of correct answers. * Lose a Life: Each incorrect answer or time expiration results in a loss of a life. Why Calco? * Enhance Mental Math and Problem-Solving Skills: Calco provides a structured environment that fosters the development of mental math and problem-solving abilities. * Achieve Top Ranking: Compete for the coveted position at the top of the leaderboard. * Family-Friendly and Ad-Supported: Enjoy a welcoming and ad-supported experience suitable for all family members. Download Calco today and embark on your journey to becoming a mathematical master, one problem at a time!

Screenshots

4 = 13 screens
Calco4 screens

Verdict

The call

The clearest difference is update cadence: 4 = 1 at monthly against Calco's every 5 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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

UpkeepUpdate frequency

4 = 1 ships an update monthly, Calco every 5 months. The most recent releases landed on September 11, 2026 and September 15, 2026 respectively.

Scorecard1 real difference Β· 5 level
4 = 1 versus Calco: the parameters behind the verdict, then further details
Parameter4 = 1Calco
PriceFreeFree
Update frequencyMonthly β€” betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone
Requires iOS16.0 β€” better17.0
Further details β€” not scored
Size0 MB12 MB
Age rating4+17+
DeveloperZoe CutlerCole Cobb

In-app purchases

None

4 = 1

No in-app purchases

None

Calco

No in-app purchases

Questions

Is 4 = 1 free?
4 = 1 is free to download, with no in-app purchases.
Is Calco free?
Calco is free to download, with no in-app purchases.
Do 4 = 1 or Calco have ads?
Neither 4 = 1 nor Calco shows ads.
Which is updated more often, 4 = 1 or Calco?
4 = 1 ships an update monthly, and Calco every 5 months. Most recently, 4 = 1 was updated on September 11, 2026 and Calco on September 15, 2026.

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