What´s missing here? vs Rolf Connect Math
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
What´s missing here?
This game challenges young children to visually scan and identify missing objects in a series of scenes. It's designed to improve memory, observation, and early logic skills, offering both single-player and two-player modes for added fun.
- Visual scanning and discrimination
- Memory and observation skill development
- Single-player and two-player modes
- Early logic challenges
- Progressive difficulty levels
- Bright graphics and easy gameplay
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"Professor Kim is a challenging visual scanning and discrimination game for preschoolers and early elementary children. You can play alone or against another, which really ups the fun factor. I have been using this game clinically, since early 2013, and it has never been off my iPad despite frequent rotation of other apps. Most kids respond immediately to its bright graphics and easy game play. It’s wonderful for teachers who may have kids that have difficulty translating what’s on the board to paper, or being able to sustain attention when visually following one target to another, as in contrast and comparison tasks." TeachersWithApps.com *** In summary this app is an excellent source for early learners needing to learn how to visually scan, discriminate and be able to target looking from one point to another. These are essential skills needed to be able to function within the classroom and manage oneself within a social environment. teacherswithapps.com *** is a great fun and entertaining game, perfect to stimulate kids memory and observation skills. Your kids will be engaged and focused. You can play it alone but we liked the 2 players mode a lot. Lots of fun, hours of play ... and if you want to be the fastest one you will find out that it might be even more challenging that your first thought! *** FunEducationalApps.com "Innovative and challenging memory game for one or two players that completely avoids the "matching pairs" cliche." smartappsforkids.com "There is a lot to love about this app, but what excites me most is that this is something new that fills a gap and meets educational needs. The bottom line is that it is different, useful, and lots of fun to play." onsarahsipad.wordpress.com *** Can you spot the missing sea creature, before the other player? This classification experience presents this type of simple early logic challenge, starting with smaller, easier sets, and progressing to harder challenges, for two players. For focused logic/memory experience this app is worth considering. We noticed no external links, ads or hidden agendas.*** Featured Review in Children´s Technology Review, Sept 2012, Vol.20, No9, Issue 150 A great game for one or two players! Who can spot the missing animal or object first? Is it the octopus, the diving elephant or the clam? Help Professor Kim in his submarine to find whats missing in the deep blue sea! This game is great fun for two kids to play together or for parents and kids! You might aswell play alone and race against the time. Be quick to spot the missing creature! Best for kids from 4 to 8 and their parents! This game is a Kim´s Game and helps to develop memory and observation skills! *** How to play *** One Player: - You can see one animal or object more on your screen than in the water. - Try to tap as fast as you can on the missing animal or object on your screen. - The new level will be unlocked as soon as you solve the level without a mistake - There are two counters. The upper counter shows the highscore. Two players: - You can see one animal or object more on your screen than in the water. - Be quick and tap faster than your partner onto the missing animal or object on your screen. - The golden fish shows you who won ===================== Disclosures for Parents We take your kids privacy and safety serious. This app includes * no links * no ads * no tracking functions * no share functions * no IAP ======================
Rolf Connect Math
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App for use with Rolf Connect, Math and Number sense Rolf Connect combines physical learning with 21st century skills. Using 14 challenging games, children will practice their number sense and math skills in a playful environment. There are 4 games available by default. By using the Rolf Connect hub & the physical block all 14 games will be unlocked for you to play with. Learning has never been this much fun! The hub and set of blocks can be bought at Rolf Education: http://rolfeducation.com/
Screenshots
Verdict
The clearest difference is update cadence: Rolf Connect Math at every 3 months against What´s missing here?'s every 6 months. Rolf Connect Math also leads on device support (3 vs 1). What´s missing here?'s advantage is iOS requirement (6.0 vs 12.2). On price, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
What´s missing here? ships an update every 6 months, Rolf Connect Math every 3 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.
| Parameter | What´s missing here? | Rolf Connect Math |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) — better | — |
| Positive reviews | 95.7% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 6 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 6.0 — better | 12.2 |
| Further details — not scored | ||
| Size | 44 MB | 251 MB |
| Age rating | 4+ | 4+ |
| Developer | appp media UG | De Rolf Groep |
In-app purchases
What´s missing here?
No in-app purchases
Rolf Connect Math
No in-app purchases
Questions
Is What´s missing here? free?
Is Rolf Connect Math free?
Do What´s missing here? or Rolf Connect Math have ads?
Which is updated more often, What´s missing here? or Rolf Connect Math?
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