The Stack vs Shimau
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
The Stack
This app offers a straightforward approach to managing tasks and capturing thoughts. It utilizes a single list of text-based notes organized with hashtags for easy retrieval and organization.
- Simple text-based notes
- Hashtag organization
- Easy idea capture
- To-do list management
- Streamlined interface
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The Stack is a different take on To-Do List management. It favours simplicity, and encourages easy capture of your thoughts ("notes to self") as you have them. It uses a single list of simple text-based notes, organised using #hashtags.
Shimau
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Things to keep, things to do — one home for your everyday. Shimau is one place for the scattered stuff of daily life: notes, to-dos, links, and photos. Videos from social media, half-read articles, screenshots, passing thoughts — just toss them in. No folders. No tagging. No filing. ◆ Zero-effort saving Pick "Shimau" in the share menu — you don't even need to open the app. For quick thoughts, tap the center "+". Shimau tells links from notes automatically as you type. ◆ AI understands what you saved Links and screenshots get automatic summaries and tags. Screenshots become searchable through on-device text recognition. Notes you write yourself are never sent to AI. ◆ Find things the way you remember them "That ramen video from last week" — search in your own words and it shows up. ◆ To-dos live on sticky notes Stick a note on a box, peel it off when it's done. The small satisfaction of an empty box keeps you going. Checklist notes open in a focused to-do mode. ◆ A one-line daily journal Once a day, log your mood and a single line — and look back with a little bear at your side. History, calendar, and stats grow the longer you keep going. ◆ Make it your own Choose a theme — Cozy or Lovely Pink, plus Calm Blue and Mono with Pro — and dress up box covers with theme art, photos, or colors and emoji. ◆ Only deadlines, gently When a saved booking or coupon has a date, Shimau offers a reminder. Choose how it speaks up: quiet, standard, or strong. No other notifications, ever. ◆ On iPhone and on iPad On iPad the screen splits in two, so you can see the list and what's in it at once. It also works alongside other apps in Split View and Slide Over. ◆ You can take it with you Back up everything in one file, or export to Markdown or JSON. It's free. Being able to leave without losing anything is part of what makes a place worth putting things in. ◆ Private by design What you save stays on your device. Nothing is stored on our servers or used to train AI. If you turn on iCloud sync, it is kept in your own iCloud. Things to keep, things to do, and how today felt — all in one place you'll always find again. That's Shimau. ―――――― Shimau Pro (auto-renewable subscription) Includes iCloud sync and backup, Face ID lock, and extra themes. ・$1.99 per month, renewing monthly ・$14.99 per year, renewing yearly Your subscription renews automatically unless cancelled at least 24 hours before the end of the period. You can cancel in Settings → your Apple ID → Subscriptions. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://shimau.io/en/privacy/
Screenshots
Verdict
The clearest difference is in-app purchases: Shimau at none against The Stack's 3. Shimau also leads on update cadence (every 4 days vs every 5 weeks) and iOS requirement (15.0 vs 26.0). On price, ads and device support 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
Both are free to download. The Stack sells 3 one-off in-app purchases. Shimau asks for nothing beyond the download.
The Stack ships an update every 5 weeks, Shimau every 4 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | The Stack | Shimau |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Mac, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | Elegant Chaos Limited | TECH MOON, K.K. |
In-app purchases
The Stack
- Fresh Straw$0.99
- A Nice Juicy Carrot$2.99
- Deluxe Hamster Wheel$9.99
Shimau
No in-app purchases









