Comparison

Trio Math vs GEO Flag

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

Head to head
About

Trio Math

Sharpen your mental math skills by finding number combinations that equal a target number. Each combination must use one multiplication and one addition or subtraction. Compete globally and enjoy a privacy-friendly, ad-free experience.

Highlights
  • Number grid puzzles
  • Multiplication and addition/subtraction required
  • Daily Challenge Mode
  • Global Leaderboard
  • Jokers for hints
  • Ad-free and privacy-friendly
Features
Read full description

Sharpen your mental math skills with Trio. Find hidden Trios in the number grid by selecting three numbers in a row and calculating their result to match the target number. Each valid Trio must include one multiplication and one addition or subtraction - no simple sums allowed. Multiple solutions exist for each target number, so think strategically and act fast to earn three stars. How to play: Find three numbers that form the target number Use one multiplication and one addition or subtraction Think creatively - brackets are allowed For example, to reach 9, you could choose: 3 × 5 - 6 = 9 5 + 2 × 2 = 9 (6 - 3) × 3 = 9 But using two additions is not allowed: 5 + 2 + 2 = 9 (No multiplication used) Features: - Daily Challenge Mode – Solve two out of three puzzles in unique game modes - Global Leaderboard – Compete with players worldwide and track your success - Jokers – Stuck? Hold a number to swap it for a Joker and find new solutions - Ad-Free, Privacy-Friendly – No ads, no data collection—just pure gameplay Trio is free to play, but if you enjoy the challenge, you can support development by unlocking the MinusTrio game mode. Whether it's the cost of an espresso or a cappuccino, your contribution helps keep the game growing. Ready to train your brain? Let’s play. 3... 2... 1... Trio.

About

GEO Flag

Features
Read full description

Do you know the world’s flags well? Geo Flag is a fun and educational trivia game where you guess the country based on its flag. Perfect for geography lovers, students, and anyone who enjoys testing their knowledge! Game Features: 194 national flags to discover 20-second challenge for each question 3 lives per game – make them count! Multi-language support (English, 繁體中文, 简体中文) Track your stats and achievements Unlock rewards and become the ultimate Flag Master Challenge yourself, compete with friends, and learn fascinating facts about countries around the world. Download now and see how many flags you can recognize!

Screenshots

Trio Math4 screens
GEO Flag4 screens

Verdict

The call

The clearest difference is in-app purchases: GEO Flag at none against Trio Math's 2. Trio Math's advantage is iOS requirement (13.0 vs 15.6). On price, update cadence, 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. Trio Math sells 2 one-off in-app purchases. GEO Flag asks for nothing beyond the download.

UpkeepUpdate frequency

Trio Math ships an update every 4 days, GEO Flag every 3 days. The most recent releases landed on October 7, 2026 and October 17, 2026 respectively.

Scorecard2 real differences · 6 level
Trio Math versus GEO Flag: the parameters behind the verdict, then further details
ParameterTrio MathGEO Flag
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyEvery 4 daysEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.0 — better15.6
Further details — not scored
Size123 MB24 MB
Age rating4+4+
DeveloperCHRISTIAN KNOLLCreasant Innovision Limited

In-app purchases

2 purchases

Trio Math

One-time2
  • MinusTrio - Espresso$1.99
  • MinusTrio - Cappuccino$2.99
None

GEO Flag

No in-app purchases

Questions

Is Trio Math free?
Trio Math is free to download, with in-app purchases available.
Is GEO Flag free?
GEO Flag is free to download, with no in-app purchases.
Do Trio Math or GEO Flag have ads?
Neither Trio Math nor GEO Flag shows ads.
Which is updated more often, Trio Math or GEO Flag?
Trio Math ships an update every 4 days, and GEO Flag every 3 days. Most recently, Trio Math was updated on October 7, 2026 and GEO Flag on October 17, 2026.

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