Comparison

DLR COMETS vs Brain Training with Numbers

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

Head to head
About

DLR COMETS

Explore the Rosetta mission to Comet 67P/Churyumov-Gerasimenko through an interactive exhibition. Discover the science behind comets and the historic Philae lander touchdown. Relive this exceptional spaceflight adventure with multimedia content.

Highlights
  • Interactive comet model
  • Mission highlights and photographs
  • Historical background on comets
  • Rosetta mission science
  • Philae lander touchdown details
  • Personal stories from the mission
Features
Read full description

The European Rosetta mission arrived at Comet 67P/Churyumov-Gerasimenko in August 2014 after a 10-year journey through space. Three months later, the Philae robotic lander touched down on the comet – the first probe to do so in the history of humankind. It was a fantastic scientific adventure and an exceptional spaceflight project. The German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) takes you on a journey to the origins of the Solar System with this exhibition app “DLR COMETS - The Rosetta mission: Journey to the origin of the Solar System”. The centrepiece of the exhibition is a model of comet 67P/Churymov-Gerasimenko based on data from Rosetta’s OSIRIS camera system, surrounded by backlit photographs of the comet and mission highlights. Additionally to the historical and technical background on comets as important building blocks of the Solar System, the Rosetta mission and its scientific achievements to date, the exhibition includes film-clips highlighting the personal stories of the men and women that made Rosetta a reality and the deep emotions evoked by involvement in the mission.

About

Brain Training with Numbers

Enhance memory, attention, and logic with this brain game. Memorize number sequences quickly and recall them to train your short-term numerical memory. Suitable for all ages, it offers progressive challenges to boost cognitive skills.

Highlights
  • Memory sequence memorization
  • Attention and concentration training
  • Logic thinking enhancement
  • Multiple difficulty levels
  • Offline standalone play
  • Cognitive skill improvement
Features
Read full description

This app is a brain game designed to enhance users' memory, attention, concentration, reaction speed, and logic thinking. Its core feature focuses on memory training, where users rapidly memorize sequences of random numbers within limited time and recall them on blank screens. This brain exercise effectively stimulates users' short-term numerical memory. The brain trainer game offers multiple difficulty levels, with longer number sequences indicating higher challenges. Users must maintain intense focus and concentration during the memory tests to progress. Whether you're a brain training enthusiast or a newcomer to mental games, you'll find suitable difficulty levels to test your brain. The app is suitable for all age groups, it serves as: •A memory helper for children's educational games and early childhood intellectual development. •A shorthand test and IQ assessment tool for adults. •A brain exercise and cognitive training helper for seniors. Through progressive this brain teasers, users will: •Gradually improve memory and IQ •Experience the joy of mental games •Notice significant enhancement in:Memory recall, Shorthand skills, Rapid calculation, Judgment, Reasoning abilities. •Discover improved performance in: IQ tests, Sudoku, Schulte Grid, Digital Huarong Puzzle, Other classic brain teasers and logic games… As an offline standalone app, the app is perfect for daily spare moments. Come on and try it now!

Screenshots

DLR COMETS4 screens
Brain Training with Numbers4 screens

Verdict

The call

The clearest difference is review sentiment: Brain Training with Numbers at 67% against DLR COMETS's 0%. DLR COMETS's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, update cadence 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. Brain Training with Numbers sells 1 one-off in-app purchase. DLR COMETS asks for nothing beyond the download.

UpkeepUpdate frequency

DLR COMETS ships an update every 3 weeks, Brain Training with Numbers every 4 weeks. The most recent releases landed on September 8, 2026 and June 5, 2026 respectively.

Scorecard5 real differences · 5 level
DLR COMETS versus Brain Training with Numbers: the parameters behind the verdict, then further details
ParameterDLR COMETSBrain Training with Numbers
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews0.0% of reviews66.7% of reviews — better
Number of ratings—1 — better
Update frequencyEvery 3 weeks — betterEvery 4 weeks
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.1 — better12.0
Further details — not scored
Size416 MB12 MB
Age rating4+4+
DeveloperDLR German Aerospace Center e.V.宏斌 樊

Customer experience

DLR COMETS

Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Brain Training with Numbers

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive66.7%
Neutral33.3%
Negative0.0%

In-app purchases

None

DLR COMETS

No in-app purchases

1 purchases

Brain Training with Numbers

One-time1
  • Remove ads.$6.99

Questions

Is DLR COMETS free?
DLR COMETS is free to download, with no in-app purchases.
Is Brain Training with Numbers free?
Brain Training with Numbers is free to download, with in-app purchases available.
Do DLR COMETS or Brain Training with Numbers have ads?
Brain Training with Numbers shows ads; DLR COMETS does not.
Which is updated more often, DLR COMETS or Brain Training with Numbers?
DLR COMETS ships an update every 3 weeks, and Brain Training with Numbers every 4 weeks. Most recently, DLR COMETS was updated on September 8, 2026 and Brain Training with Numbers on June 5, 2026.

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