# Nuka Diary: Ferment Tracker — Daily reminders and easy fixes

> Daily reminders and easy fixes (iPhone/iPad app by TAKAYUKI TAKEMOTO.)

- Source: https://appshunter.io/ios/app/nuka-diary-ferment-tracker/id6798459101 (this page in markdown: same URL + `.md`)
- Developer: [TAKAYUKI TAKEMOTO](https://appshunter.io/developer/6789396308)
- Category: Food & Drink, Lifestyle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 6 MB
- Languages: American English, Japanese
- Released: 2026-08-14
- Data updated: 2026-08-19
- User reviews in markdown: https://appshunter.io/ios/app/nuka-diary-ferment-tracker/id6798459101/reviews.md

## What is Nuka Diary?

A rice bran bed rewards the hands that tend it.
The hard part isn't the stirring — it's remembering whether you already did.

Nuka Diary takes the remembering off your plate.


OPEN IT, TAP ONCE

One big button. Press it and today is logged.

Your streak grows, so tomorrow you'll want to keep it going. In high summer the app
quietly switches to a morning-and-evening rhythm; in winter it eases off. The pace
follows the season so you only ever have to press the button.


WHEN SOMETHING SEEMS OFF

"It smells like paint thinner."
"There's a white film on top."
"It's gone too sour."

Pick what matches and you get the cause, then the fix, step by numbered step.

- why it happened
- exactly what to do about it
- whether it can wait or needs attention now

Fourteen problems covered, including how to tell harmless white film from real mould.
Knowing you don't have to throw it out is worth a lot on its own.


CATCH THE RIGHT MOMENT

How long for cucumber? For daikon? Does the fridge really double it?

Twenty-four vegetables with their own timings, calculated from where you keep the bed
(room temperature, a cool spot, or the fridge) and the time of year. You get a
notification when it's ready.

Rate each batch as you take it out — too shallow, just right — and the timing shifts
toward how you actually like it. The longer you use it, the more it becomes yours.


GO AWAY WITHOUT WORRYING

Tell it how long you'll be gone and you get a checklist for before you leave and
another for when you're back. Reminders pause while you're away.


ALSO INSIDE

- Home Screen and Lock Screen widgets with the countdown at a glance
- Photos attached to records, so you can compare how it looked over time
- iCloud sync, so your history survives a new phone
- Works for shio koji, miso, kimchi, sauerkraut and more — eleven ferments in all
- A guide covering how to start a bed, salt levels, and building umami
- Japanese and English


It's something you open every day, so it stays out of your way.
A weekly plan is available if you'd rather have no ads at all.


As long as your bed is alive, this app has a job to do.


NO ADS PLAN (AUTO-RENEWABLE SUBSCRIPTION)

- Name: No Ads Weekly
- Length and price: renews every week / $0.99 (price varies by region)
- Renews automatically unless cancelled at least 24 hours before the period ends
- Manage or cancel any time in iPhone Settings, your Apple Account, Subscriptions

Terms of Use (EULA)
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Privacy Policy
https://tatsu456.github.io/nukadoko-diary/privacy.html

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| No Ads (Weekly) | $0.99 | per 7 days |



## Version history (last 1 release)

### 1.0 — 2026-08-14

No release notes.

## More apps by TAKAYUKI TAKEMOTO

- [Counter1234](https://appshunter.io/ios/app/counter1234/id6789396006)
- [SplitBill_EX 多通貨の割り勘](https://appshunter.io/ios/app/splitbill-ex/id6796218290)
- [献立メーカー_EX 晩ごはんの献立と買い物リスト](https://appshunter.io/ios/app/ex/id6797272114)

All apps by TAKAYUKI TAKEMOTO: https://appshunter.io/developer/6789396308

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-19.*