Simple to vs Log
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Simple to
Organize your daily tasks with a straightforward to-do list. Easily add new items, categorize them by type like 'Shopping' or 'Work', and customize with due dates and colors. Access your tasks directly from your home screen with widgets.
- Easy task addition
- Categorize tasks
- Home screen widgets
- Customizable theme colors
- Private and secure
- Due date customization
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Manage your tasks simply and clearly with our to-do list app. Organize tasks by categories such as "Shopping," "Work," and "Private" for easier management. Features of the To-Do List: ■ Easy Task Addition Just click the add button and input your task. Customize due dates and background colors. ■ Categorize Tasks Separate tasks by use-case, like "Shopping," "Work," and "Private." ■ Home widget compatible It supports home widgets, so you can check your todos right from the home screen. In addition to confirmation, it also supports interaction, so you can complete todos from the widget. ■ Variety of Theme Colors Over 20 colors to choose from. Change colors based on your mood. ■ Private and Secure Tasks you create won't be seen by anyone. The To-Do List App is recommended for: ・Those seeking a simple and user-friendly Todo app. ・Those tired of complex Todo apps.
Log
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Log is a thought log for people who turn ideas into reality. Capture an idea in one line. Not a record, but a log for evolution. You wrote it down, then lost track of it. Ideas pile up, but you can't tell what moved forward and what stalled. Log keeps your thinking not as scattered dots, but as a history of change. CAPTURE IN ONE LINE Save a thought before it fades, with the fewest taps. Organize later. Type #tags in the title and they are added automatically. CONNECT YOUR THINKING Link related logs and keep a thought history (v1 → v2 → v3), so you always know where an idea came from and where it went. DIG DEEPER WITH AI Chat with Claude, ChatGPT or Gemini about one log or a bundle of logs. Save a good reply back as a new log with one long-press. AI ideas suggests three next steps: dig deeper, branch out, or move to the next stage. SIX LAYERS OF THINKING Idea → Output → Build → Launch → Review → Reach. Give each log a layer and see how far each thought has grown. SPIRAL GRAPH™ See the density, depth and reach of your thinking on Log's own logarithmic spiral. Tap a layer to open its logs. WRITE MATH Wrap text in $ to show it as math, in your notes and in AI replies. Great for math and physics study logs. EXPORT AS MARKDOWN Export a whole folder as a ZIP of Markdown files, one note per log, ready for Obsidian and other apps. Back up and restore everything with JSON. PRIVATE BY DESIGN Your logs stay on your device. Log has no server and never uses your logs for training. Lock the app with Face ID. AI features use your own API key, stored in the iOS Keychain and sent only to the AI provider you choose. PRICING Free: up to 3 folders and 50 logs, with every feature. Pro: unlimited folders and logs. One-time purchase, no subscription.
Screenshots
Verdict
The clearest difference is ads: Log at none against Simple to's shown. Log also leads on update cadence (every 4 days vs every 6 weeks). On price, in-app purchases, device support and iOS requirement 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. Simple to sells 1 one-off in-app purchase and Log sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Simple to ships an update every 6 weeks, Log every 4 days. The most recent releases landed on October 13, 2026 and October 15, 2026 respectively.
| Parameter | Simple to | Log |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 84.6% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 6 weeks | Every 4 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 49 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | Kentaro Tsurumoto | mika masuda |
In-app purchases
Simple to
- Premium plan$9.99
Log
- Log Pro$5.99









