bombo vs ProperSound
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
bombo
Improve your American English pronunciation with AI-powered feedback. Practice individual sounds, words, and sentences with personalized lessons and track your progress. Speak more clearly and confidently in everyday conversations and professional settings.
- Sound-by-sound pronunciation scoring
- Native speaker audio examples
- 24 levels and 133 bite-size lessons
- Personalized daily practice exercises
- On-device speech analysis for privacy
- Progress tracking with streaks and badges
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Bombo is your personal American English accent coach. Say a sentence, get a score in seconds, and see exactly which sounds slipped. A friendly chameleon keeps you company while you practice, and your voice never leaves your iPhone. WHY BOMBO WORKS - Sound-by-sound feedback: every word you say is scored sound by sound. Green means you nailed it, red shows exactly what to fix. - Tap to hear it right: listen to any sound or word from a native speaker, then try again. - A real journey: 24 levels and 133 bite-size lessons take you from tricky sounds like "th" and "r" all the way to word stress, rhythm, linking and natural fluent speech. - Your chameleon evolves: Bombo changes color as you level up. Gold is waiting at level 24. - Daily practice that remembers you: fresh themed exercises every day, built around the exact words you struggled with, brought back right before you forget them. - Weak spots: your trickiest sounds stay on your list until you clear them, twice. - Streaks, XP and badges make showing up every day the easy part. PRIVATE BY DESIGN Your voice is never uploaded. All speech analysis runs entirely on your iPhone using on-device models. Recordings are not sent to us or to anyone else, and they are never used to train anything. Lessons, scoring and feedback even work in airplane mode. That is also why your scores arrive in seconds. WHO BOMBO IS FOR Whether you are preparing for everyday conversations, job interviews, IELTS or TOEFL speaking, Bombo helps you sound clearer and more confident in English. If people sometimes ask you to repeat yourself, Bombo shows you exactly why, then helps you fix it one sound at a time. Lessons teach clear, natural American English. The app interface is in English. FREE EVERY DAY One full lesson or practice session is free every day, forever. Bombo Premium unlocks unlimited lessons and practice with weekly, monthly or yearly plans, and the yearly plan includes a 3-day free trial. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. You can manage or cancel your subscription anytime in your App Store account settings. Terms of Use: https://getbombo.com/terms Privacy Policy: https://getbombo.com/privacy Questions or ideas? We read everything: support@getbombo.com
ProperSound
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You already know English. Now make it sound right. In a job interview, a client call, or a presentation, the gap between correct English and convincing English is how it sounds — the rhythm, the stress, the melody of the sentence. ProperSound trains exactly that, the way interpreters and actors train: by mimicking a perfect model until it becomes your own voice. HOW IT WORKS 1. Listen to a sentence spoken the way it should sound. 2. Speak it back — mimic the model's rhythm, stress, and melody. 3. Hear your voice and the model side by side, and see exactly where you differ. The difference is the lesson. No scores, no grades. Your own ears are the judge — the way professionals have always trained their voice. HEAR YOUR OWN VOICE, PERFECTED ProperSound doesn't just compare — it corrects. • Plug in wired headphones and your voice is tuned toward the model in real time as you speak. You hear yourself sounding right while you practice. • After every take, replay a perfected version rendered from your own recording — your voice, with the model's polish. This is what you should sound like. • The model audio itself is enhanced so the cues learners usually miss — sentence stress, crisp consonants, linking — stand out clearly. SEE THE DIFFERENCE • Your waveform overlaid on the model's: rhythm and pauses at a glance. • A band-by-band sound profile shows exactly where your energy falls short of the model. • Every sentence comes with its stress pattern, IPA transcription, and a coaching tip written for that exact sentence. ENGLISH FOR REAL SITUATIONS Practice the sentences professionals actually say: • Job interviews — introduce yourself, answer with the STAR method • Workplace communication — meetings, small talk, difficult conversations • Presentations — open, transition, persuade, close • Financial news — read the markets aloud like a broadcast anchor • Daily life, travel, and campus English From your first sounds to native-level delivery, with six US and UK studio voices to train your ear. WORKS ANYWHERE, STAYS PRIVATE Every lesson and every recording ships inside the app. Nothing to download, nothing to stream, no account needed to look around. Practice on a plane, on the subway, anywhere. Your voice never leaves your device: recordings and progress are stored locally and are never uploaded to us or anyone else. PROPERSOUND PRO Start free with lessons in every chapter. ProperSound Pro unlocks the full curriculum, with a 7-day free trial on the monthly and yearly plans. • Monthly, yearly, or yearly for the family (up to 6 people) • Payment is charged to your Apple Account at confirmation of purchase • Subscriptions renew automatically unless turned off at least 24 hours before the period ends • Manage or cancel in your Apple Account settings after purchase • Any unused portion of a free trial is forfeited when you buy a subscription Terms of Use: https://rx20.github.io/propersound_pages/terms-of-service.html Privacy Policy: https://rx20.github.io/propersound_pages/privacy-policy.html
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Verdict
bombo and ProperSound are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. bombo sells 3 in-app purchases, starting at $3.99 per 7 days and ProperSound sells 3 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.
| Parameter | bombo | ProperSound |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 483 MB | 606 MB |
| Age rating | 4+ | 4+ |
| Developer | Bunyamin Mete | Yonghao Xu |
In-app purchases
bombo
- Premium Weekly$3.997 Days
- Premium Monthly$12.991 Month
- Premium Yearly3 Days trial$49.991 Year
ProperSound
- Pro Monthly7 Days trial$8.991 Month
- Pro Yearly7 Days trial$29.991 Year
- Pro Family$49.991 Year
Questions
Is bombo free?
Is ProperSound free?
Do bombo or ProperSound have ads?
Which is updated more often, bombo or ProperSound?
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