Comparison

Grandpa In Space vs Tower Math®

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

Head to head
About

Grandpa In Space

Embark on a cosmic adventure with Grandpa and his alien friends! Explore the solar system through 10 engaging mini-games and 18 educational videos. This app makes learning about space, math, and literacy fun for young children.

Highlights
  • 10 educational mini-games
  • 18 narrated space videos
  • Solar system facts
  • Math and literacy skills
  • Sorting and categorization games
  • Customizable mini-game selection
Features
Read full description

Build a rocket, take off, and explore space with Grandpa! Travel to nine fascinating destinations in our solar system. Along the way, Grandpa and his alien friends need help fixing satellites, adding up aliens, blasting asteroids, sorting items in the ship, racing and landing UFOs, and much more! Grandpa in Space is packed with 10 mini-games and 18 instructional videos. Ages 5 to 8. “Grandpa in Space is one of the best collections of educational games for kids out there, with nice, colorful graphics, cute sound effects, and high educational value.” - Top Kids Apps “An out-of-this world interactive math and science adventure that will entertain as well as educate! 5 STARS.” - The iPhone Mom “A thrilling, realistic, and child-friendly educational space exploration app.” - AppAdvice Find out why kids LOVE this wacky educational space game! ACTION-PACKED MINI-GAMES: 1. Build a Rocket. Choose from sleek and shiny or totally silly rocket parts! 2. Alien Addition. Can you add up those wiggly alien legs? 3. Asteroid Blaster. Count by 1’s, 2’s, 5’s, or 10’s to blast the asteroids! 4. Clean up the Ship. Oh, no! The ship is filled with floating debris! Put it in the right bins! 5. Sort by Height. Can you line up the aliens, towers, and rockets by height? 6. Fix the Satellite. Oops, an asteroid damaged the satellite; can you fix all the parts? 7. Rhyme Race. Help the aliens win the UFO race by rhyming the words! 8. Opposites. Send each alien to the right home by matching up the opposites! 9. Memory Match. Use sound clues to help find matching aliens behind the planets! 10. Shape Lander. Can you land UFO on the trapezoid landing pad? FEATURES: + 10 educational mini-games. + 18 narrated educational space videos with real footage from NASA. + 36 planet fun facts incorporated throughout game. + Fun interactive add-ins: give Grandpa a high five, eat a pizza planet, press the “red button” + Colorful graphics, professional-quality music, sound effects, and voices. + Adult can select which mini-games are active. + Developed by an Educational Psychologist and parents. Tested by kids. EDUCATIONAL CONTENT: + Solar system information, 36 planet facts, contextual information about space travel. + Math: count by 1’s, 2’s, 5’s, 10’s, addition facts through 12, advanced shapes: octagon, rhombus, trapezoid, square, rectangle, circle, pentagon, hexagon, crescent, oval. + Literacy: advanced opposites, rhyming, vocabulary (sun, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto, asteroid, comet, solar system, satellite, moon, crew, helmet, radio, gravity, meteor, axis, galaxy, planet, universe, nebula). + Sorting, categorization, memory, planning/coordination games. "5 Stars. The Grandpa and Grandma apps by Fairlady Media are definitely must-have apps for kids.” - Top Best Apps for Kids PRODUCT SUPPORT: Fairlady Media is committed to developing high-quality family-friendly games with excellent entertainment value. Please contact us if you have suggestions for improvement or to get technical issues resolved: support@fairladymedia.com. Also by Fairlady Media: + Grandma's Garden (dancing Granny teaches preschool skills, ages 5 & under) + Grandpa's Workshop (high-fiving Grandpa teaches primary skills, ages 2-6) + Grandma’s Kitchen (fun and learning with Grandma and her wacky utensils, ages 4-7) + Grandma Loves Bugs (explore the forest to learn about creepy-crawlies, ages 5 & under) + Grandma’s Preschool (the best school readiness app on the App Store, ages 3-6) + Fishing With Grandpa (cast and reel in fish and play games with Grandpa, ages 3-6) + Music With Grandma (learn about music and jam on musical instruments, ages 7+) + Camping With Grandpa (go on a hiking adventure and learn about the wilderness, ages 5-8) + Smashing Grammar (crush the nouns, verbs, and more to get a high score, ages 9+) Links that take the user outside the app are contained behind a Parental Gate.

About

Tower Math®

Practice arithmetic through an engaging 3D tower defense game. Solve math problems to build magic towers, free captured numbers, and earn special powers. Track progress and earn medals with multiple player profiles.

Highlights
  • Arithmetic practice (addition, subtraction, multiplication, division)
  • Tower defense gameplay
  • 3D graphics
  • Multiple player profiles
  • Medal system for level completion
  • Special power-ups
Features
Currently charting
Read full description

- Editor's Choice Award! - Children's Technology Review Tower Math® makes practicing arithmetic fun! Free the numbers with your magic towers in this action packed, 3D game! The numbers have been turned into monsters by an evil wizard! As you add, subtract, multiply and divide, you build towers with magic powers that can free the numbers. You can also use your math skills to earn special powers like the Freeze Ray and Magic Rain. You earn a bronze, silver or gold medal for every successfully completed level. Your game progress and medals are all saved under your player profile. Up to 5 player profiles can be created. HAVE FUN WHILE PRACTICING MATH: ▸ Addition ▸ Subtraction ▸ Multiplication ▸ Division FEATURES: ▸ A full-featured tower defense game ▸ Beautiful 3D graphics ▸ 20 unique scenes ▸ Create up to five player profiles ▸ Earn medals for each level ▸ Fun sound effects and music ▸ iPhone 5 and iPad Retina Display support ▸ Works on both iPhone and iPad - a universal app Tower Math® is an educational app for all ages that's actually FUN to play. Try it now! PRIVACY DISCLOSURE Tower Math®: - Does not contain 3rd party ads. - Does not contain in-app purchases. - Does not contain integration with social networks. - Does not use 3rd party analytics / data collection tools. - Does include links to apps by Dan Russell-Pinson in the iTunes App Store (via Performance Horizon). For more information on our privacy policy please visit: http://dan-russell-pinson.com/privacy/

Screenshots

Grandpa In Space4 screens
Tower Math®4 screens

Verdict

The call

The clearest difference is rating: Grandpa In Space at 4.8 against Tower Math®'s 4.1. Tower Math®'s advantage is review sentiment (74% vs 60%) and chart position (#192 vs unranked). On update cadence, ads, in-app purchases and monetization model 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

Grandpa In Space costs $2.99 and Tower Math® $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Grandpa In Space holds the better App Store score, 4.8 against 4.1. Both are backed by a comparable volume of ratings — 12 and 44 respectively. Written reviews complicate that: 60% of Grandpa In Space's written reviews are positive against 74% of Tower Math®'s, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Grandpa In Space ships an update every 3 months, Tower Math® every 5 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard6 real differences · 5 level
Grandpa In Space versus Tower Math®: the parameters behind the verdict, then further details
ParameterGrandpa In SpaceTower Math®
Price$2.99$1.99 — better
Rating4.8 (12 ratings) — better4.1 (44 ratings)
Positive reviews60.0% of reviews73.7% of reviews — better
Number of ratings1244 — better
Update frequencyEvery 3 months — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank—#192 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.08.0 — better
Further details — not scored
Size106 MB175 MB
Age rating4+4+
DeveloperFairlady MediaFreecloud Design, Inc.

Customer experience

Grandpa In Space

All ratings12 ratings
Positive91.7%
Neutral8.3%
Negative0.0%
Written reviews20 reviews
Positive60.0%
Neutral5.0%
Negative35.0%

Tower Math®

All ratings44 ratings
Positive75.0%
Neutral6.8%
Negative18.2%
Written reviews19 reviews
Positive73.7%
Neutral10.5%
Negative15.8%

In-app purchases

None

Grandpa In Space

No in-app purchases

None

Tower Math®

No in-app purchases

Questions

Is Grandpa In Space free?
Grandpa In Space costs $2.99, with no in-app purchases.
Is Tower Math® free?
Tower Math® costs $1.99, with no in-app purchases.
Which has better reviews, Grandpa In Space or Tower Math®?
Grandpa In Space is rated higher. Grandpa In Space averages 4.8 out of 5 from 12 ratings, while Tower Math® averages 4.1 from 44 ratings.
Do Grandpa In Space or Tower Math® have ads?
Neither Grandpa In Space nor Tower Math® shows ads.
Which is updated more often, Grandpa In Space or Tower Math®?
Grandpa In Space ships an update every 3 months, and Tower Math® every 5 months. Most recently, Grandpa In Space was updated on November 1, 2026 and Tower Math® on November 6, 2026.

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