Comparison

Oh!Natto! ~納豆ネバネバシミュレーション~ vs Mystery Seed Lab

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

Head to head
About

Oh!Natto! ~納豆ネバネバシミュレーション~

Engage in a unique natto-mixing action game where you compete for scores based on how much you can eat. The mixing consistency affects its portability. Share your high scores on social media and potentially discover a new appreciation for natto.

Highlights
  • Natto mixing action
  • Score-based competition
  • Eat as much natto as possible
  • Mix consistency affects portability
  • Share high scores on SNS
  • Stress relief gameplay
Features
Read full description

Oh!Natto!は納豆アクションゲームです。 納豆を混ぜ、食べることができた量でスコアを競います。 納豆は、その混ざり具合によって運びやすさが変わります。 あなたはどれだけ多くの納豆を食べることができるでしょうか? 納豆を食べた結果は、ハイスコアをSNSにシェアしてみんなで盛り上がろう! 素敵な納豆ライフを! 全力で混ぜることでストレス発散になります、なっとうが嫌いな方も遊んでいるうちに好きになるかも?? Oh! Natto! Is a natto action game. Mix natto and compete for the score with the amount you eat. Natto is easy to carry depending on how it is mixed. How much natto can you eat? As a result of eating natto, everyone can share the high score on SNS and get excited! Have a nice natto life! Mixing with all your energy will relieve stress, and those who don't like it may like it while playing?

About

Mystery Seed Lab

Nurture a unique seed with eyes by providing various stimuli like water, light, and warmth. Discover over 500 different flowers and creatures, crossbreed them, and track your progress in a detailed journal. Connect with friends for assistance and enjoy daily rewards.

Highlights
  • Grow seeds with unique needs
  • Discover over 500 flower and creature types
  • Crossbreed flowers to create hybrids
  • Track progress in a detailed journal
  • Daily login bonuses and research themes
  • Home screen widget for quick checks
  • Connect with friends for boosters
Features
Read full description

In the lab's petri dish sits a tiny seed — and it has eyes. As a researcher, your job is to observe it and help it grow. ■ The combination of stimuli changes what blooms Water, light, warmth, vibration and stillness. The two stimuli you give most decide which flower blooms. The same care on a different seed brings a different flower. You won't know what it is until it blooms. ■ Every seed has likes and dislikes It hops happily at things it likes and turns away from things it dislikes. Watching its reactions is the shortcut to rare flowers. ■ It keeps growing on its own Your seed grows slowly even while the app is closed. Left alone it blooms in about 3 days; check in often and it can bloom in about a day. Add more dishes to grow several seeds at once. ■ The Seed Vault and the Gold Tube New seeds arrive from the Vault every day. Open a Gold Tube for a special seed that grows into an unexpected creature instead of a flower. ■ Crossbreeding Pick two flowers from your Research Log and cross them. Only a good match gives a "Hybrid Seed". Which flowers go together? That's for you to find out. ■ Catalog and Journal Everything that blooms or hatches is kept in your Catalog — more than 500 kinds. Your Journal remembers what bloomed and when, and you can name each one you grow. The more you find, the higher your researcher rank, with gifts from the lab along the way. ■ Lab friends Connect with friends by Lab ID and send each other Growth Boosters. ■ Daily research A 7-day login bonus that gets better every round, and three new research themes every Monday. ■ Home screen widget Check on your seed's growth without opening the app. · Free to play (in-app purchases available) · Some features are available by watching ads (research videos)

Screenshots

Oh!Natto! ~納豆ネバネバシミュレーション~4 screens
Mystery Seed Lab4 screens

Verdict

The call

The clearest difference is rating: Mystery Seed Lab at 5.0 against Oh!Natto! ~納豆ネバネバシミュレーション~'s 1.0. Oh!Natto! ~納豆ネバネバシミュレーション~'s advantage is in-app purchases (none vs 7) and ads (none vs shown). On price, ratings volume and update cadence 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

Both are free to download. Mystery Seed Lab sells 7 one-off in-app purchases. Oh!Natto! ~納豆ネバネバシミュレーション~ asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Mystery Seed Lab holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews complicate that: 100% of Oh!Natto! ~納豆ネバネバシミュレーション~'s written reviews are positive against 82% of Mystery Seed Lab's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Oh!Natto! ~納豆ネバネバシミュレーション~ ships an update every 10 days, Mystery Seed Lab every 6 days. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

Scorecard7 real differences · 3 level
Oh!Natto! ~納豆ネバネバシミュレーション~ versus Mystery Seed Lab: the parameters behind the verdict, then further details
ParameterOh!Natto! ~納豆ネバネバシミュレーション~Mystery Seed Lab
PriceFreeFree
Rating1.0 (1 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews — better81.8% of reviews
Number of ratings11
Update frequencyEvery 10 daysEvery 6 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better16.4
Further details — not scored
Size18 MB356 MB
Age rating4+4+
DeveloperHarumi SagawaMCS Corp.

Customer experience

Oh!Natto! ~納豆ネバネバシミュレーション~

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Mystery Seed Lab

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews11 reviews
Positive81.8%
Neutral18.2%
Negative0.0%

In-app purchases

None

Oh!Natto! ~納豆ネバネバシミュレーション~

No in-app purchases

7 purchases

Mystery Seed Lab

One-time7
  • Gold Tube×1$0.99
  • Growth Booster×3$0.99
  • Gold Tube×3$1.99
Show 4 more
  • Growth Booster×10$1.99
  • Extra Dish (2nd)$1.99
  • Extra Dish (3rd)$2.99
  • Gold Tube×10$6.99

Questions

Is Oh!Natto! ~納豆ネバネバシミュレーション~ free?
Oh!Natto! ~納豆ネバネバシミュレーション~ is free to download, with no in-app purchases.
Is Mystery Seed Lab free?
Mystery Seed Lab is free to download, with in-app purchases available.
Which has better reviews, Oh!Natto! ~納豆ネバネバシミュレーション~ or Mystery Seed Lab?
Mystery Seed Lab is rated higher. Oh!Natto! ~納豆ネバネバシミュレーション~ averages 1.0 out of 5 from 1 ratings, while Mystery Seed Lab averages 5.0 from 1 ratings.
Do Oh!Natto! ~納豆ネバネバシミュレーション~ or Mystery Seed Lab have ads?
Mystery Seed Lab shows ads; Oh!Natto! ~納豆ネバネバシミュレーション~ does not.
Which is updated more often, Oh!Natto! ~納豆ネバネバシミュレーション~ or Mystery Seed Lab?
Oh!Natto! ~納豆ネバネバシミュレーション~ ships an update every 10 days, and Mystery Seed Lab every 6 days. Most recently, Oh!Natto! ~納豆ネバネバシミュレーション~ was updated on November 2, 2026 and Mystery Seed Lab on October 31, 2026.

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