Short answer
The official Mandarin Phonetic Symbols Handbook says the four regular tone marks sit at the upper right of the final symbol in both vertical and horizontal notation; the first-tone mark is normally omitted. The neutral-tone dot goes above the syllable in vertical notation, but before the first symbol in horizontal notation. This small placement rule is easy to miss when a child mostly learns by sound. Use the Ministry handbook for the formal writing model, then let Lumi Bopomofo reinforce recognition of the four tones through listening and play.
Try Lumi Bopomofo on a real example first, and check the current App Store listing for exact features and pricing before you decide.
What to look for before choosing
- Regular tone marks: upper right of the syllable's final Zhuyin symbol
- First tone: the mark is normally omitted
- Neutral tone in vertical notation: dot above the syllable
- Neutral tone in horizontal notation: dot before the first symbol
- Official reference: Taiwan Ministry of Education Mandarin Phonetic Symbols Handbook
A practical decision process
- Define the job you need done most often.
- Test the app with real content or a realistic scenario.
- Check privacy labels and account requirements.
- Confirm export and backup options.
- Choose the pricing model you are comfortable maintaining.
Quick comparison
| Need | What to check | Why it matters |
|---|---|---|
| Pricing model | Check whether useful features require a subscription, a one-time unlock, or neither. | The cheapest app on day one may not be cheapest after a year. |
| Privacy model | Prefer on-device work when the content is sensitive. | Private documents, resumes, study data, and family content deserve careful handling. |
| Export / lock-in | Confirm file formats, sharing, backup, and deletion controls. | A good app should help you finish the task, not trap your work. |
Where Lumi Bopomofo fits
Lumi Bopomofo is built for exactly this — use the checklist above and test it on a real example.
No subscriptionNo adsKid-safe
This page is an independent buying guide. App Store features and prices can change, so confirm details on the listing before purchase.