Comparison

Extreme Addition vs ALGC

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

Head to head
About

Extreme Addition

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Extreme Addition® is a unique and extraordinarily simple game that takes you into the world of extreme additions. You will love this game. You will boost your mental calculation and your mastery of numbers. You will gain speed of execution and reasoning. You will create automatisms. You will boost your concentration and motivation. You will gain confidence in yourself. You will not waste your time. Are you ready? So let's go! In this 3-level game, two numbers are presented to you each turn. There are 10 rounds in a game and your time is timed and saved if you have 10/10. You must add these two numbers in an extreme way. You give your answer by pressing one of the 9 digits. The answer is always a number between 1 and 9. At level 1, the two numbers presented are between 1 and 10. (8 + 7) is equal to 6 in the world of Extreme Addition®. Why? Because (8 + 7) = 15, then you separate 15 into (1 + 5) = 6 At level 2, the two numbers presented are between 10 and 99. (28 + 32) is equal to 6 in the world of Extreme Addition®. Why? Because (28 + 32) = 60, then you separate 60 into (6 + 0) = 6 At level 3, the two numbers presented are between 100 and 999. (102 + 108) is equal to 3 in the world of Extreme Addition®. Why? Because (102 + 108) = 210, then you separate 210 into (2 + 1 + 0) = 3 Will you take up the challenge? Mental arithmetic is the daily maintenance of all your mental faculties! Here are some tips to save time in your extreme additions: Tip 1 The result of adding a two-digit number with 9 is quickly obtained from this number as follows: - The number of units minus 1. - The tens digit plus 1. Examples: (25 + 9) = 34 (46 + 9) = 55 (78 + 9) = 87 Tip 2 The result of the extreme addition of 9 with any number from 1 to 9 equals that number. Examples: (4 + 9) => 4 because (4 + 9) = 13 and (1 + 3) = 4 (2 + 9) => 2 because (2 + 9) = 11 and (1 + 1) = 2 (7 + 9) => 7 because (7 + 9) = 16 and (1 + 6) = 7 (9 + 9) => 9 because (9 + 9) = 19 and (1 + 8) = 9 Tip 3 It is faster to add 245 + 637 to the extreme by doing 2 + 4 + 5 + 6 + 3 + 7. Tip 4 Try to get a maximum of 9 in the longest additions, in order to apply tip # 2. Here are all the additions to get the number 9: 1 + 8 = 9 2 + 7 = 9 3 + 6 = 9 4 + 5 = 9 Tip 5 Learn by heart your addition tables, so you no longer have to rely on your fingers to find the result! Lol. 7 + 5 = 12 8 + 4 = 12 6 + 7 = 13 8 + 5 = 13 8 + 6 = 14 7 + 8 = 15 etc ... Be positive, combative, don't give up after a single game, have fun and progress. (This game is available for WatchOS, iOS, MacOS and Apple TV)

About

ALGC

Features
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Welcome to living life at Abundant Life Gospel Centre! Given the vision of a gardener watering the seeds that God has given to our lead pastor, we are expected to serve by providing effective ways for God to bring the increase through technology by playbacks and downloading of past messages, sharing these messages through social media or email and staying connected in community by our groups. Mobile app version: 6.18.1

Screenshots

Extreme Addition4 screens
ALGC3 screens

Verdict

The call

The clearest difference is update cadence: Extreme Addition at every 3 weeks against ALGC's every 3 months. Extreme Addition also leads on device support (6 vs 4). On price, ads, in-app purchases 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

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

UpkeepUpdate frequency

Extreme Addition ships an update every 3 weeks, ALGC every 3 months. The most recent releases landed on September 8, 2026 and September 15, 2026 respectively.

Scorecard2 real differences · 4 level
Extreme Addition versus ALGC: the parameters behind the verdict, then further details
ParameterExtreme AdditionALGC
PriceFreeFree
Update frequencyEvery 3 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod, Mac, Apple TV, Apple Watch — betteriPhone, iPad, iPod, Apple TV
Requires iOS15.615.1 — better
Further details — not scored
Size65 MB50 MB
Age rating4+4+
DeveloperBARTOLI JOHANChurch of God of Prophecy (Oshawa)

In-app purchases

None

Extreme Addition

No in-app purchases

None

ALGC

No in-app purchases

Questions

Is Extreme Addition free?
Extreme Addition is free to download, with no in-app purchases.
Is ALGC free?
ALGC is free to download, with no in-app purchases.
Do Extreme Addition or ALGC have ads?
Neither Extreme Addition nor ALGC shows ads.
Which is updated more often, Extreme Addition or ALGC?
Extreme Addition ships an update every 3 weeks, and ALGC every 3 months. Most recently, Extreme Addition was updated on September 8, 2026 and ALGC on September 15, 2026.

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