Yume Diary Support
Last updated: September 3, 2026
1. Contact Us
For questions about Yume Diary (the "App"), or to report a problem, please write to
support@mainichi-apps.win
A reply may take a few days. When reporting a problem, it helps if you can include:
- Your device (for example, iPhone 15 / Android)
- The app version (if the settings screen shows one)
- Which screen you were on, and what you did when it happened
2. How to Use the App
- When you wake up, type the dream you remember and tap Record to save it (nothing is saved until you tap).
- Dream keywords are picked out of what you wrote and the entry appears in the list. Tap an entry to read the text and what each keyword is said to mean.
- Entries are stored only on your device. There is no account and no sign-in.
3. Frequently Asked Questions
- Is what I record sent anywhere?
- No. Records are stored only on your device. There is no account and no sign-in, and nothing is sent to an external server. See the Privacy Policy for details.
- How do I delete everything?
- Tap the entry you want to remove to open it, then tap Delete at the bottom and confirm; that single entry is erased. There is no bulk-delete, so to erase everything, delete the App itself. This cannot be undone.
- Can I move my records to a new phone?
- Not at the moment, because the records live only on your device. On a new device you start again from scratch.
- Does it work offline?
- Yes. Everything works on your device, so every feature is available in airplane mode. (the first time a typeface is needed the App downloads the font file from Google's font servers. If either fails, nothing about the App changes. See "Network Communication" in the privacy policy.)
- Are there ads or in-app purchases?
- No.
- How many entries are kept?
- Up to the most recent 100. Adding a 101st entry automatically deletes the oldest one.
- How are the dream keywords worked out?
- The App compares what you wrote against a dictionary bundled inside it, entirely on your device. No network request is made.
- Are the dream meanings accurate?
- They come from common symbol dictionaries and are meant as entertainment, not fortune-telling or diagnosis. Please enjoy them as a rough guide.
4. If Something Goes Wrong
- Close the App completely and open it again.
- If that does not help, restart your device.
- Check the App Store / Google Play for an update.
- If it still happens, email support@mainichi-apps.win with the three details listed above.
Reinstalling the App can fix some problems, but it also erases your records. Please treat it as a last resort.
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