Comparison

Smart.Grid vs Race To Zero

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

Head to head
About

Smart.Grid

Features
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With Germany and other countries having committed to a process of energy transformation, the amount of renewable generators with fluctuating output is on the increase. In order to make efficient use of this energy originating from sun and wind, novel methods of power system operation are to be conceived. This emerging set of novel methods defines the functionality of the smart grid. Learn about the key players of the smart grid with this app. Play five level, each one introducing one key player with a quiz and a small game. The games transform your iPhone into: 1. A PV-cell 2. A wind energy converter 3. A flexible consumer 4. An ice storage 5. An energy management system Gain an insight into the functionality of a smart grid and learn how the smart grid contributes to a secure and sustainable energy supply.

About

Race To Zero

Features
Read full description

Race To Zero is a fun packed app with a serious message - a great tool for learning about spending, investing, innovating and production. Simply tap and swipe your choices to see if you can make the best decisions to achieving a carbon neutral town. Within the game you will learn about the choices in economics and also the technologies of energy production, saving and storage. You start with oil powered energy production and a generally happy population. However, the townspeople would like to see change and that's where you come in! Exciting App Features - Plan your Spending Buy, Invest, Research and Sell to get the optimum outcome to your Race to Zero Carbon. - Augmented Reality STEM Puzzles Games against the clock appear in your World - can you fix a circuit board? make the optimal wind farm? fix the water generator? - 3D Town in AR Watch your animated town advance as you evolve the energy use. - Choose your name and see your team Select a fun name from the drop down lists and see which of the 4 Scottish themed teams you are assigned to. - Hundreds of Chance events Sometimes good, sometimes bad - the road to success is never predictable. - 30 minute gameplay Manage a budget over 4 decades in just 30 minutes - can you beat the politicians to Carbon Zero? - Group Play Share your special code in the classroom or at home to include friends and colleagues in a group game. - Review your Stats After every game, see your activity in graphs and review your choices - can you beat it next time? This app is a free, family safe digital product and there is: - No In-app Purchasing; - No Advertising; - No Registration; - No Personal Data Recorded. The aim of the product is to provide supplementary learning on economics and increase environmental awareness in a fun, engaging way. This product was developed by the Award winning Mardles team at Harmony Studios and funded by Fife Council, Scotland and Interreg North Sea Region.

Screenshots

Smart.Grid4 screens
Race To Zero4 screens

Verdict

The call

The clearest difference is update cadence: Smart.Grid at every 3 months against Race To Zero's every 13 months. Smart.Grid also leads on iOS requirement (9.0 vs 15.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Smart.Grid ships an update every 3 months, Race To Zero every 13 months. The most recent releases landed on October 5, 2026 and October 3, 2026 respectively.

Scorecard2 real differences · 4 level
Smart.Grid versus Race To Zero: the parameters behind the verdict, then further details
ParameterSmart.GridRace To Zero
PriceFreeFree
Update frequencyEvery 3 months — betterEvery 13 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better15.0
Further details — not scored
Size7 MB262 MB
Age rating4+4+
DeveloperTechnische Universitaet BerlinHarmony Studios Limited

In-app purchases

None

Smart.Grid

No in-app purchases

None

Race To Zero

No in-app purchases

Questions

Is Smart.Grid free?
Smart.Grid is free to download, with no in-app purchases.
Is Race To Zero free?
Race To Zero is free to download, with no in-app purchases.
Do Smart.Grid or Race To Zero have ads?
Neither Smart.Grid nor Race To Zero shows ads.
Which is updated more often, Smart.Grid or Race To Zero?
Smart.Grid ships an update every 3 months, and Race To Zero every 13 months. Most recently, Smart.Grid was updated on October 5, 2026 and Race To Zero on October 3, 2026.

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