Comparison

Mebridge vs Kidou

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

Mebridge

Features
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Mebridge is a diary app that easily records every moment you experience, and sends messages to your future self. ● Diaries as Simple as Messaging Mebridge is designed for the modern individual who values convenience. Write your diary entries as easily as you would send a message to a friend. ● Messages to Tomorrow's Me The message you write today will arrive as a notification at this time tomorrow. Send messages of encouragement, advice, and self-affirmations to yourself. ● Simple Notepad Not only diaries, but you can also write quick notes. Conveniently record important thoughts and ideas. Through Mebridge, reflect on past experiences, record the present, and prepare for your future self. Start your journey towards a better tomorrow with Mebridge! [Contact Information] If you have any questions or inquiries, please contact us anytime at support@planetfru.com.

About

Kidou

Features
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Your habits find their orbit β€” grown the way real planets are. Kidou turns your habits into a living, hand-grown solar system. Open it and you don't find a dashboard β€” you find a night sky. The more you show up, the more it grows: worlds are born, drift into orbit, and slowly come to life. β–  Grown the way real planets are Every habit is a celestial body. Each day you keep it, you "turn an orbit," and the body visibly gains mass. As orbits add up, it accretes through the true stages of planet formation: γ€€Dust β†’ Pebble β†’ Planetesimal β†’ Protoplanet β†’ Planet Big goals break down into the smallest possible step β€” start with "just get ready" β€” and every few days a stage completes, so growth is always something you can see. β–  You choose: advance or stay Every stage-up is an invitation, never automatic. Move to the next stage, or stay here a little longer. Staying is never a penalty. If a stage feels heavy, you can always drift back to an inner orbit, and your record is never lost. β–  A star ignites at your center When your first habit fully grows, the "you" at the center ignites into a star. Each new planet you form lets you evolve its color β€” amber, blue-white, pure white, violet, crimson, jade. Tap the star for an overview: worlds growing, worlds formed, total orbits, and an observation log of every milestone. β–  Never shaming, never nagging No "failure." No "streak broken." No "missed." Pausing costs you nothing. A habit that lapses simply drifts away like a comet on a long orbit β€” and it always returns. No red warnings, no nagging notifications, no guilt badges. β–  Scatter your first dust in about 90 seconds Pick from twelve templates or name your own goal, see its five-stage path, choose a color, and take the first step. β–  Home Screen widget Mark today's orbit right from your Home Screen β€” a calm checklist, one step at a time, without even opening the app. β–  Entirely on your device No account, no login, no cloud, no ads, no tracking. Your data stays on your device, with no network except Apple's purchase processing. β–  Pricing Grow up to three habits for free. A single one-time Planetarium Pass removes the habit limit, so you can grow as many habits as you like. No subscription β€” you pay once. The price is shown in the app. There is no rush. Your solar system grows by exactly as much as you showed up for today.

Screenshots

Mebridge4 screens
Kidou4 screens

Verdict

The call

The clearest difference is in-app purchases: Mebridge at none against Kidou's 1. Mebridge also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). Kidou's advantage is ads (none vs shown) and update cadence (fortnightly vs every 28 months). On price there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Kidou sells 1 one-off in-app purchase. Mebridge asks for nothing beyond the download.

UpkeepUpdate frequency

Mebridge ships an update every 28 months, Kidou fortnightly. Both last shipped on October 25, 2026.

Scorecard5 real differences Β· 1 level
Mebridge versus Kidou: the parameters behind the verdict, then further details
ParameterMebridgeKidou
PriceFreeFree
Update frequencyEvery 28 monthsFortnightly β€” better
AdsYesNo β€” better
In-app purchasesNo β€” betterYes
DevicesiPhone, iPad, iPod β€” betteriPhone
Requires iOS15.0 β€” better17.0
Further details β€” not scored
Size24 MB2 MB
Age rating4+4+
DeveloperPlanetfrukazunari aoki

In-app purchases

None

Mebridge

No in-app purchases

1 purchases

Kidou

One-time1
  • Planetarium Pass$6.99

Questions

Is Mebridge free?
Mebridge is free to download, with no in-app purchases.
Is Kidou free?
Kidou is free to download, with in-app purchases available.
Do Mebridge or Kidou have ads?
Mebridge shows ads; Kidou does not.
Which is updated more often, Mebridge or Kidou?
Mebridge ships an update every 28 months, and Kidou fortnightly. Most recently, Mebridge was updated on October 25, 2026 and Kidou on October 25, 2026.

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