Comparison

Kototsumugi vs Shadow Work

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

Head to head
About

Kototsumugi

Features
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Kototsumugi is a conversational AI diary app. You do not need to write perfectly. Share what happened today, what stayed on your mind, or feelings that are hard to put into words. Kototsumugi turns the conversation into a diary that feels like you. For people who want to: - Build a diary habit - Use an AI diary app - Create a journal through conversation - Reflect on each day - Organize feelings and thoughts - Practice self-care - Keep memories in writing - Turn small fragments into a daily record What you can do with Kototsumugi: - Create diary entries from AI conversations Talk naturally, then turn the conversation into a diary. - Save fragments of feelings Keep words, moments, and emotions as small fragments you can revisit later. - Write in a style that fits the day Create gentle, natural diary entries based on your mood. - Look back through history Read past entries and notice changes in your feelings and everyday life. - PRO plan Create more diary entries, save more fragments, and use the app without ads. Kototsumugi quietly supports your daily reflection. Small moments and unnamed feelings can become meaningful records when you look back. Talk with AI and keep the movement of your heart, one day at a time. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Shadow Work

Features
Read full description

Shadow work is the practice of turning toward the parts of yourself you usually push away. The fear, the anger, the old hurt, the patterns you repeat without meaning to. Umbra gives you a quiet, private place to do that work at your own pace. This is a journal built for one thing: honest self-reflection, guided gently. WHAT YOU GET A library of prompts, grouped by theme. Meeting your shadow, childhood, relationships, self-worth, anger, fear, and projection. Each prompt is open and non-judgmental. It invites you to look, not to fix. A prompt each day. Open the app and there is one thoughtful question waiting. No scrolling, no noise. Just a place to start. A clean writing screen. Plain text, soft type, and autosave so you never lose a word. Nothing between you and the page. Your history, kept gently. A simple record of what you have written and the days you showed up. A light streak and a quiet calendar reflect your effort back to you, calmly. A missed day just starts the count again, with no penalty and no pressure. An optional daily reminder. Set a time that fits your routine, or leave it off. Your choice. PRIVATE BY DESIGN Your entries never leave your phone. There is no account, no login, and no cloud. The app works fully offline. We do not have a server that could read your writing, because there is no server. What you write here is yours alone. A CALM PLACE TO THINK Shadow work can bring up heavy feelings. Umbra is built to hold that gently. Move slowly. Skip a prompt that feels like too much. Come back when you are ready. There is no streak to protect and nothing to lose by taking your time. The app is also a fine general guided journal if you are not here for shadow work specifically. The prompts open doors, wherever you want to walk through them. A NOTE ON CARE Umbra is a tool for self-reflection. It is not therapy and it is not a substitute for professional support. If you are struggling, please reach out to a qualified professional or a trusted person in your life. SUBSCRIPTION Umbra is free to download and comes with a free trial. After the trial, a subscription keeps the full library and all features unlocked. You can choose a weekly or yearly plan. Price, trial length, and renewal terms are shown clearly before you subscribe, and you can cancel anytime in your App Store settings. Payment is charged to your Apple ID, and a subscription renews automatically unless you turn off auto-renew at least 24 hours before the period ends. Terms of Use and Privacy Policy links are available on the subscription screen and below. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://dev16nath.github.io/umbra-legal/

Screenshots

Kototsumugi4 screens
Shadow Work4 screens

Verdict

The call

The clearest difference is in-app purchases: Kototsumugi at none against Shadow Work's 2. Kototsumugi also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price, update cadence and ads 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. Shadow Work sells 2 in-app purchases, starting at $4.99 per 7 days. Kototsumugi asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 days. Both last shipped on November 5, 2026.

Scorecard3 real differences Β· 3 level
Kototsumugi versus Shadow Work: the parameters behind the verdict, then further details
ParameterKototsumugiShadow Work
PriceFreeFree
Update frequencyEvery 3 daysEvery 3 days
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPad, iPod β€” betteriPhone
Requires iOS13.0 β€” better17.0
Further details β€” not scored
Size45 MB21 MB
Age rating4+9+
DeveloperTomofumi UebaDevanuj Nath

In-app purchases

None

Kototsumugi

No in-app purchases

2 purchases

Shadow Work

Subscriptions2
  • Weekly7 Days trial$4.997 Days
  • Yearly$39.991 Year

Questions

Is Kototsumugi free?
Kototsumugi is free to download, with no in-app purchases.
Is Shadow Work free?
Shadow Work is free to download, with in-app purchases available.
Do Kototsumugi or Shadow Work have ads?
Neither Kototsumugi nor Shadow Work shows ads.
Which is updated more often, Kototsumugi or Shadow Work?
Kototsumugi ships an update every 3 days, and Shadow Work every 3 days. Most recently, Kototsumugi was updated on November 5, 2026 and Shadow Work on November 5, 2026.

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