Comparison

Kumii vs Backyard Biome

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

Head to head
About

Kumii

Care for and evolve a unique mythical pet in this cozy virtual adventure. Nurture your companion through daily interactions, dress them up, and uncover hidden secrets as your bond grows. This gentle game rewards consistent care and exploration.

Highlights
  • Choose unique mythical pets
  • Daily care and interaction
  • Pets evolve through stages
  • Customize pet's appearance
  • Daily surprises and rewards
  • Companion's journal and memories
  • Discover hidden secrets
Features
Read full description

Kumii (pronounced “Koo-mee”) is a cozy virtual pet adventure where every companion grows with you. Choose a mythical pet, care for them each day, watch them evolve, dress them up, and uncover secrets as your bond deepens. Drop in for a few minutes or settle in longer — Kumii rewards care, curiosity, and connection. FEATURES • Choose your companion — unique mythical pets with their own personality • Care that feels alive — feed, drink, play, pet, rest, and clean up • Grow together — evolve through special stages as you level up • Style their look — crowns, accessories, auras, and more • Daily surprises — claim finds and keep a care streak going • Memories that last — your companion’s journal remembers your days together • Hidden secrets — including a true form waiting for devoted keepers • Gentle & relaxing — no harsh punishments, just a pet that needs you Your next mythical companion is waiting. Start your journey with Kumii today.

About

Backyard Biome

Features
Read full description

Build a small yard and explore the food web it supports. Backyard Biome is an offline ecology-inspired strategy game for iPhone and iPad. SHAPE YOUR YARD Place meadow, nectar patches, shrubs, trees, ponds, deadwood, compost, rain gardens and predator shelters across 70 tiles. Balance a restoration budget as simulated weather, soil conditions and invasive growth change the yard. PLAN AT YOUR OWN PACE Start paused, inspect any tile, then run the clock or advance one or seven simulated days. Leaving the Yard pauses time. Your active study saves on this device and reopens paused, preserving its habitats, weather sequence and progress. LEARN FROM YOUR STUDIES Inspect moisture, nutrients, shade and disease pressure. Follow daily stability, diversity, soil and water-quality indices in survey charts. Export observations as CSV through Files. Completed studies retain their daily survey history in the field journal; older journal entries retain their original summaries. FOUR WAYS TO PLAY Campaign chapters offer repeatable starting yards. Daily and Weekly modes use shared UTC-based seeds. Practice offers a slower automatic clock. Optional Game Center leaderboards accept Daily and Weekly results completed within the same seed period; achievements are available when Game Center is connected. Existing leaderboards keep best scores and do not reset with each seed. EXPLORE THE FOOD WEB Read a 32-entry guide to organisms and ecological roles, with source links and clear model notes. Listen to 20 included soundtrack pieces. Use labeled tile controls, Dynamic Type, reduced-motion options and haptic controls. EVERYTHING INCLUDED One purchase. No ads, subscription, in-app purchases or developer account required. Play works offline. Active studies and the journal remain local. Optional manual private iCloud snapshots transfer campaign progress only; they do not transfer yards or journals. This is a simplified game model. Its indices are not wildlife counts, scientific measurements, calibrated predictions or professional environmental advice.

Screenshots

Kumii4 screens
Backyard Biome4 screens

Verdict

The call

The clearest difference is price: Kumii at Free against Backyard Biome's $2.99. Kumii also leads on update cadence (every 6 days vs every 4 weeks). Backyard Biome's advantage is in-app purchases (none vs 10). On ads, 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

CostPrice · In-app purchases · Ads · Monetization

Kumii is free to download; Backyard Biome costs $2.99 up front. Kumii sells 10 one-off in-app purchases. Backyard Biome asks for nothing beyond the download.

UpkeepUpdate frequency

Kumii ships an update every 6 days, Backyard Biome every 4 weeks. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Kumii versus Backyard Biome: the parameters behind the verdict, then further details
ParameterKumiiBackyard Biome
PriceFree — better$2.99
Rating5.0 (6 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 6 days — betterEvery 4 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.4 — better17.0
Further details — not scored
Size108 MB55 MB
Age rating4+4+
DeveloperDev Dreams LLCRobert Corbin

In-app purchases

10 purchases

Kumii

One-time10
  • Iron Fang Badge$2.49
  • Storm Medallion$2.49
  • Iron Spire Crown$2.99
Show 7 more
  • Storm Crown$2.99
  • Drake Horn Crest$2.99
  • Obsidian Crest$2.99
  • Void Eclipse$3.49
  • Stormforge Glow$3.49
  • Ember Collection$6.99
  • Stormforged Collection$6.99
None

Backyard Biome

No in-app purchases

Questions

Is Kumii free?
Kumii is free to download, with in-app purchases available.
Is Backyard Biome free?
Backyard Biome costs $2.99, with no in-app purchases.
Do Kumii or Backyard Biome have ads?
Neither Kumii nor Backyard Biome shows ads.
Which is updated more often, Kumii or Backyard Biome?
Kumii ships an update every 6 days, and Backyard Biome every 4 weeks. Most recently, Kumii was updated on October 24, 2026 and Backyard Biome on October 31, 2026.

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