Idea Think vs Caption Forge
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Idea Think
Capture, organize, and visualize your thoughts with a mind mapping tool. Branch ideas naturally, search your entire library, and export your thinking as PDFs. Keep your ideas private and offline.
- Capture ideas in one tap
- Unlimited branching
- Interactive Tree Map view
- Search by text or tag
- Export as PDF
- Private and offline storage
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Capture ideas fast, branch them naturally, and organise everything offline. Idea Think turns scattered thoughts into a clear mind map you can search, tag, pin, visualise, and export whenever inspiration strikes. Whether you are planning a project, collecting insights, outlining content, or saving a passing idea before it disappears, Idea Think gives every thought a place to grow. CORE FEATURES - Capture ideas in one tap - Grow unlimited branches from any idea - View your structure in an interactive Tree Map - Search by text or tag across your whole library - Pin and tag important ideas for quick access - Export any idea tree as a clean PDF - Use daily reminders to build a thinking habit - Keep everything private and fully offline FAST CAPTURE Type a thought and hit send. No folders, no setup, no friction. New ideas land in your Inbox first, so you can capture now and organise later. NATURAL BRANCHING Tap any idea to drill deeper and add child branches. Start from one seed and grow it into a full mind tree as your thinking expands. VISUAL THINKING Use Tree Map view to see your idea structure at a glance. Pinch, zoom, and pan through your thinking visually. Long-press any node to edit, move, or delete. SEARCH AND ORGANISE Find any idea quickly with text or tag search. Filter by Top Level, Seedbed, Recent, Most Branched, or Deep Ideas. Pin the ideas you want to keep in focus. EXPORT AND SHARE Turn any idea tree into a beautifully formatted PDF. Share it with your team, send it to yourself, or archive your thinking for later. PRIVATE AND OFFLINE Everything stays on your device. No account. No cloud. No forced sync. Light and Dark Mode are both supported, with six accent colours to personalise your trees. FREE TO USE Idea Think is free to download and use. The app is supported by ads, which help us keep it updated and improving. Available in English, Japanese, Traditional Chinese, and Simplified Chinese.
Caption Forge
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Revise a saved caption with a named change record, compare the saved and draft text, and restore a previous version into the editor. HOW IT WORKS 1. Open Revision Desk and choose a saved caption. 2. Edit the draft, describe why it changed and save a revision. The first revision also preserves the original text. 3. Load a previous version into the editor and save it as a new revision when ready. Existing caption writing and saved-caption workflows remain available. Revision saves protect against overwriting a caption that changed while being edited. WHAT TO KNOW Loading a version changes only the draft until you save. Calendar entries and previously shared copies are not rewritten. Character and word counts do not predict reach or engagement. History has an explicit limit and individual versions can be deleted. iPhone and iPad.
Screenshots
Verdict
The clearest difference is price: Idea Think at Free against Caption Forge's $0.99. Idea Think also leads on iOS requirement (13.0 vs 17.0). Caption Forge's advantage is in-app purchases (none vs 1). On update cadence, 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
Idea Think is free to download; Caption Forge costs $0.99 up front. Idea Think sells 1 one-off in-app purchase. Caption Forge asks for nothing beyond the download.
Idea Think ships an update every 5 days, Caption Forge every 9 days. The most recent releases landed on September 19, 2026 and October 3, 2026 respectively.
| Parameter | Idea Think | Caption Forge |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 days — better | Every 9 days |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 30 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Man Chi CHoi | Robert Corbin |
In-app purchases
Idea Think
- IdeaThinkPro$1.99
Caption Forge
No in-app purchases








