Comparison

GrowApp vs Robot Emil

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

Head to head
About

GrowApp

Features
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GrowApp helps you track and visualize changes in the appearance - the 'phenology' - of trees and other vegetation. The phenology of a particular tree at a certain location and a certain moment in time is stored in the GrowApp cloud-database by adding a photo taken with this app. The app presents a geographic map with the locations of all photos taken by all users. A photo can be viewed by tapping the corresponding photo location. If the photo location happens to be near your current location, you can add new photos of the same subject. The app then shows a semi-transparent version of the previous photo on top of the camera view so that camera and photo can be visually aligned. Once more than one photo of the same subject at the same location has been taken, the app automatically constructs time-lapsed versions of these photos. If enough photos are taken over sufficiently large intervals, the resulting animations should clearly show all aspects of the changing vegetation phenology over time.

About

Robot Emil

Features
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Emil is fun. However, it’s not meant to offer just a fleeting fun for a couple of moments. It’s school-oriented and based on scientific research and many years of work with teachers and students. It’s rooted in international experiences gained in teaching computer science as well as in modern learning theories, while at the same time it fully meets the requirements of the current innovated State educational programme . For the first time ever, Emil creates computer science as a well thought-out and systematic cognitive process intended for every student. Emil changes computer science from a subject simply teaching computer use to a new form of exploration, problem solving, and collaborative partnership between subjects. Computer Science with Emil teaches students how to live and work responsibly in the digital environment, and how to explore and change the world.

Screenshots

GrowApp4 screens
Robot Emil4 screens

Verdict

The call

The clearest difference is update cadence: Robot Emil at every 3 months against GrowApp's every 28 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

GrowApp ships an update every 28 months, Robot Emil every 3 months. The most recent releases landed on September 5, 2026 and September 6, 2026 respectively.

Scorecard1 real difference Β· 5 level
GrowApp versus Robot Emil: the parameters behind the verdict, then further details
ParameterGrowAppRobot Emil
PriceFreeFree
Update frequencyEvery 28 monthsEvery 3 months β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 β€” better12.0
Further details β€” not scored
Size6 MB98 MB
Age rating4+4+
DeveloperStichting voor Duurzame OntwikkelingIndicia, s.r.o.

In-app purchases

None

GrowApp

No in-app purchases

None

Robot Emil

No in-app purchases

Questions

Is GrowApp free?
GrowApp is free to download, with no in-app purchases.
Is Robot Emil free?
Robot Emil is free to download, with no in-app purchases.
Do GrowApp or Robot Emil have ads?
Neither GrowApp nor Robot Emil shows ads.
Which is updated more often, GrowApp or Robot Emil?
GrowApp ships an update every 28 months, and Robot Emil every 3 months. Most recently, GrowApp was updated on September 5, 2026 and Robot Emil on September 6, 2026.

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