Invader Sisters vs BecameKappa
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Invader Sisters
Read full descriptionHide full description
Aim the high score to defeat the enemy invaders! Anyone can play easily, it is a shooting game.
BecameKappa
A casual raising simulation game where you nurture a creature by feeding it and helping it grow. Discover multiple endings and enjoy a story that changes on subsequent playthroughs. Perfect for quick gaming sessions.
- Nurture and raise a monster
- Feed cucumbers to help growth
- Discover 4 different endings
- Story changes on second playthrough
- Casual gameplay for spare time
- Mutations based on index
Read full descriptionHide full description
=== A Heart-Stirring Raising Game === From the team behind “Raise a Japanese Doll”, comes a brand-new series. ■ Description ■ This is a game where you raise me! Feed me cucumbers and help me grow fast. There are 4 different endings (with more to come in future updates). A casual game you can enjoy in your spare time. ■ Recommended Points ■ -Evolve quickly and smoothly -Enjoy multiple endings -On the second playthrough and beyond, the story changes ■ Hints ■ [About Mutations] I mutate based on my mutation index. [About Cucumbers (Food)] -They regenerate every 5 minutes -If you’re impatient, taking care of me helps them grow faster -Sometimes, cucumbers arrive from Mom (Mamazon)
Screenshots
Verdict
The clearest difference is update cadence: Invader Sisters at every 2 weeks against BecameKappa's every 19 months. On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Invader Sisters ships an update every 2 weeks, BecameKappa every 19 months. The most recent releases landed on October 5, 2026 and October 24, 2026 respectively.
| Parameter | Invader Sisters | BecameKappa |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (34 ratings) — better |
| Positive reviews | — | 81.0% of reviews |
| Number of ratings | — | 34 — better |
| Update frequency | Every 2 weeks — better | Every 19 months |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | — | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 19 MB | 78 MB |
| Age rating | 4+ | 12+ |
| Developer | ERX | OMOSHIRO KAKUMEI CAPSULE PLUS, K.K. |
In-app purchases
Invader Sisters
No in-app purchases
BecameKappa
No in-app purchases









