HiMemo vs Aravel
Price, ratings, monetisation and update history for both apps, side by side â with what reviewers say about each.
HiMemo
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For example, information that has a hierarchical structure, such as information linked to regions or division of organization, that is, information that has multiple children dangling from a parent and overlaps with grandchildren and grandchildren. Is unexpectedly large. Usually, such information is recorded in a memo application in bullet points, but adding and editing information is surprisingly troublesome, and there was a problem that the hierarchical relationship collapses if careless. With HiMemo, you can record information hierarchically with simple operations, and you can also add or modify. It is also possible to export to other apps and SNS in a tree view mode that gives a bird's eye view of the whole, or in plain text format or HTML format.
Aravel
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Ideas don't move on inspiration alone. Aravel breaks an idea into steps and links what depends on what, so the next move rises to the surface. â See every idea at a glance Tie ideas together with "this has to finish before that starts," and the dependencies in your head become a radial map. Pinch to zoom out, tap to open any idea. â Know what to do next The list shows prerequisites and status side by side. What's waiting and what's ready to move reads at a glance. â Get back to what you're working on As projects pile up, star the ones that matter and they gather at the top of the list. Whatever you're moving on right now is there the moment you open the app. â Build your own workflow Name your own statuses and pick their colors. You choose which ones count as done, so completion means what it means to you. â Every change stays on record Status changes and memo edits stack onto a timeline. Trace back why you decided what you did. â Think it through with an AI that knows the project (paid plan) The AI reads your ideas, their dependencies, status, and history â so instead of one-off answers, you work through what to do next together. Starts with a 14-day free trial. â Your data stays on your device Projects, ideas, and history are all stored on your iPhone. No account, no sync server, no ads. Note: only when you use the AI chat on a paid plan are your messages and idea content sent to Google's Gemini to generate a reply. The app tells you when it does. [Plans] - Free: all core idea management. Works offline, no account. - Standard (monthly): project-wide AI chat, with a 14-day free trial. Prices follow App Store listings. Subscriptions renew automatically and can be canceled any time. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://shinjo.dev/project/aranea-idea/privacy-policy/en
Screenshots
Verdict
The clearest difference is in-app purchases: HiMemo at none against Aravel's 1. HiMemo also leads on iOS requirement (13.0 vs 26.0). Aravel's advantage is update cadence (every 2 weeks vs every 19 months). 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. Aravel sells 1 in-app purchase, starting at $2.99 per month. HiMemo asks for nothing beyond the download.
HiMemo ships an update every 19 months, Aravel every 2 weeks. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.
| Parameter | HiMemo | Aravel |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 19 months | Every 2 weeks â better |
| Ads | No | No |
| In-app purchases | No â better | Yes |
| Devices | iPhone, iPad, iPod â better | iPhone, iPad |
| Requires iOS | 13.0 â better | 26.0 |
| Further details â not scored | ||
| Size | 30 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Hiroyuki Kawai | Shinjo Sato |
In-app purchases
HiMemo
No in-app purchases
Aravel
- Standard14 Days trial$2.991 Month









