What shouldn’t be here? Babies vs Primatrix
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
What shouldn’t be here? Babies
This game helps young children develop logical reasoning by identifying the picture that doesn't belong in a set. It features 700 illustrated examples across various topics with engaging voiceovers and visuals.
- Logical connection training
- 700+ illustrated examples
- 7 learning topics
- Voiceover and illustrations
- Auto and manual settings
- Multilingual support
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«What shouldn’t be here?» -- this game helps with understanding simple logical connections. 700 well-drawn examples and countless number of their combinations will allow to check the understanding of material from the 7 topics. The child will be asked to choose the picture that doesn't belong from a total of 3 or 4 pictures! Pleasant voiceover and wonderful illustrations will accompany every choice. AUTO and MANUAL settings for the child's convenience. Find the picture that doesn't belong within 7 topics or between different topics! What are we learning? 1. FIRST VERBS: to jump, to sleep, to drink, to hug, etc. 2. BABY ANIMALS: piglet, foal, tiger cub, chick, etc. 3. PERSONAL HYGIENE: hair comb, to take a bath, towel, neat, etc. 4. KITCHEN: juicer, cup, spoon, dinner, etc. 5. TRANSPORTATION: ship, plane, motorcycle, subway, etc. 6. PROFESSIONS: cook, pilot, manager, farmer, etc. 7. COLORS: purple, red, light green, black-and-white, etc. 8. QUESTION MARK – a countless number of combinations between various topics. 6 LANGUAGES: English, German, French, Spanish, Italian, Russian
Primatrix
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Тренажер устного счета. Making Math Fun: Welcome to the Primatrix Primatrix – это увлекательная игра, которая помогает отработать и улучшить навыки устного счета у гимназистов начальной школы. Всем известно, что решение математических примеров в уме – одно из важнейших условий для успешного освоения материала в целом. Primatrix создана для того, чтобы сделать этот процесс более интересным для детей и укрепить их знания. Веселая математика – легко! Welcome to the Primatrix. Make Math Fun for Kids! - Primatrix позволяет выбирать арифметические действия (сложение, вычитание, деление и умножение), а также необходимый уровень сложности. - Primatrix не оставит ребенка без приятных сюрпризов и не даст заскучать. В игре предусмотрено всё, чтобы мотивировать детей делать успехи в обучении. - Primatrix придумана Михаилом Тулиновым, учеником 4А класса, Гимназии им. Е.М. Примакова и будет постоянно развиваться и совершенствоваться. Оставайтесь с нами!
Screenshots
Verdict
The clearest difference is price: Primatrix at Free against What shouldn’t be here? Babies's $2.99. Primatrix also leads on update cadence (every 6 days vs every 11 months). On ads, in-app purchases, device support and iOS requirement 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
Primatrix is free to download; What shouldn’t be here? Babies costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
What shouldn’t be here? Babies ships an update every 11 months, Primatrix every 6 days. The most recent releases landed on October 23, 2026 and October 28, 2026 respectively.
| Parameter | What shouldn’t be here? Babies | Primatrix |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 92.3% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 11 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 198 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | DOG&FROG Educational preschool kids games for girls and boys, toddlers and babies | Alexey Andreev |
In-app purchases
What shouldn’t be here? Babies
No in-app purchases
Primatrix
No in-app purchases
Questions
Is What shouldn’t be here? Babies free?
Is Primatrix free?
Do What shouldn’t be here? Babies or Primatrix have ads?
Which is updated more often, What shouldn’t be here? Babies or Primatrix?
Other comparisons
