Why iPhone is a special case for translator apps
iOS makes some translator decisions for you that Android doesn't. Apple Translate ships built-in. Safari has integrated translation. Siri can translate. The App Store privacy nutrition labels show data collection upfront. The result: iPhone users have lower friction defaults than Android users — and three specific iPhone-only nuances catch travelers out:
- Apple Translate covers only 19 languages. Generous for European travel; missing Vietnamese, Thai, Hindi, Indonesian, Greek, Turkish, Swahili, Tagalog, and most non-mainstream languages. For trips outside Apple's covered set, you need a supplementary app.
- iOS PWAs require Safari, not Chrome. Add-to-Home-Screen for a Progressive Web App (like TapSay) only works in Safari on iOS. Chrome-on-iOS can't do this — Apple deliberately limits PWA install to Safari. So if you're on iPhone and want TapSay's no-install advantage, open it in Safari first.
- App Store data nutrition labels. Apple requires every app to disclose what it collects. Worth checking before installing — some translator apps collect search history, location, and identifiers that may surprise you.
The 8 translator apps ranked for iPhone use
| App | Free? | Offline? | Languages | App Store install? |
|---|---|---|---|---|
| Apple Translate | Yes | Yes (downloaded) | 19 | Built-in |
| TapSay (PWA) | Yes (45 phrases) / $1/day full | Yes (after one Safari visit) | 119 | No — Add to Home Screen |
| Google Translate | Yes | Yes (with packs) | 133+ | Yes |
| DeepL Translate | Free tier (5K chars) | No on mobile | ~30+ | Yes |
| Microsoft Translator | Yes | Yes (with packs) | ~100 | Yes |
| iTranslate | Free online / $5.99/mo Pro for offline | Pro only | ~100 | Yes |
| Papago | Yes | Limited | ~15 (CJK strong) | Yes |
| SayHi Translate | Yes | No (voice cloud) | ~100 | Yes |
Apple Translate: the right default for most iPhone users
Built-in since iOS 14 (2020), Apple Translate is genuinely good for the languages it covers. Download languages in Settings → General → Language & Region → Translation Languages, then translation runs on-device — no internet needed, no data sent to Apple's servers, integrated with Siri ("Hey Siri, how do you say thank you in Italian?") and with Safari's translate-this-page feature.
The 19-language list as of iOS 18 covers Spanish, French, German, Italian, Portuguese, Japanese, Korean, Chinese (Simplified and Traditional), Arabic, Russian, Dutch, Polish, Turkish, Thai, Vietnamese, Indonesian, plus a couple more added in recent updates. Notable absences: Greek, Swahili, Hindi (added recently in beta but inconsistent), Tagalog, Bengali, most African and Pacific languages.
For a European, North American, or East Asian trip, Apple Translate often suffices alone. For trips outside that set, you need supplementary apps.
TapSay (PWA): the no-App-Store option for iPhone
TapSay is the only mainstream translator built as a Progressive Web App. On iPhone, the install flow is: open Safari, type tapsay.me/app, wait ~10 seconds for the cache to populate, tap the Share button, scroll down, tap "Add to Home Screen". The icon appears on your home screen looking like a regular app — but you didn't go through the App Store, didn't enter an Apple ID password, and the entire 119-language phrasebook is now offline-ready in under 5MB.
Why this matters on iPhone specifically: families sharing an iPhone (kid's phone, partner's phone, parent's phone) often can't install App Store apps without parental approval or password. PWA install bypasses that. Also useful for hot-desk Macs / iPads in offices and co-working spaces where signing into the App Store with personal credentials is awkward.
The trade-off: TapSay is a curated phrasebook (693 hand-translated phrases), not a translation engine — it can't translate arbitrary sentences. For arbitrary text, pair it with Apple Translate or Google Translate.
The other 6 on iPhone, ranked for travel
Google Translate (best language coverage)
The biggest language list (133+), the best camera OCR, voice conversation mode. Offline packs are 50-100MB each. Requires a Google account for full feature use, including offline pack management. iPhone-specific note: Google Translate's iOS widget integrates with the Share sheet, so you can share text from any app and translate it instantly — useful for translating WhatsApp messages from foreign contacts. See our 8 best Google Translate alternatives if you want to step away from Google specifically.
DeepL Translate (best translation quality)
The translation-quality leader, especially for European languages. iPhone app is well-built. Free tier is 5,000 characters per request — generous for travel use. Mobile is online-only (no offline mode at all). Best paired with Apple Translate or TapSay for offline coverage. See TapSay vs DeepL for the deeper comparison.
Microsoft Translator (best live conversation)
The standout feature is multi-person live conversation mode — generate a code, others join from their phones, everyone speaks their language and sees translations. Useful for group dinners, business meetings abroad, and family gatherings with non-English-speaking relatives. Offline packs available for ~50 languages.
iTranslate (skip the subscription)
Beautiful native iOS app, well-maintained since 2009. The free tier is online-only — offline mode is locked behind iTranslate Pro at $5.99/month or $49.99/year. The math doesn't favor it for occasional travel use, especially when Apple Translate (free), Google Translate (free), and TapSay (free or $1/day) all offer offline. See TapSay vs iTranslate for the full breakdown.
Papago (Naver — best for East Asia)
If you're an iPhone user spending real time in Korea, Japan, or China, Papago is significantly better than Google Translate or Apple Translate for those specific language pairs. The Korean-Japanese-Chinese-English coverage is excellent. Outside those four languages, less useful. Built by Naver (Korean tech giant) so privacy considerations are different from US-based competitors.
SayHi Translate (Amazon — voice-conversation focused)
Voice-first translator owned by Amazon. Two people speak alternately, app plays translations aloud. Mostly useful when you're stationary and willing to take turns. Less useful for the typical "show this phrase to the cab driver" travel scenario where TapSay or Apple Translate are faster.
The recommended iPhone translator stack for travelers
For most travelers, install (or add to Home Screen) this combination:
- Apple Translate (built-in) — your default. Download the 5-10 languages you might need.
- TapSay (PWA via Safari) — your offline travel phrases. Add to Home Screen once, works for every trip thereafter.
- Google Translate (App Store) — for camera-based menu OCR and the long tail of languages Apple Translate doesn't cover.
- (Optional) DeepL for European-trip emails to hotels and hosts.
Total cost: $0. Total App Store installs: 1-2 (Google Translate, optionally DeepL). Total disk usage: under 500MB even with multiple Apple Translate language packs.
Frequently asked questions
What is the best translator app for iPhone?
Apple Translate (built-in, free, on-device) for the 19 languages it covers. Google Translate for wider language coverage. TapSay for offline travel phrases without an App Store install. DeepL for high-quality European-language translation.
Is Apple Translate better than Google Translate?
Better for the 19 languages it covers (privacy, integration, free, on-device). Worse for everything else. Most travelers benefit from having both.
How do I install a translator app on iPhone without the App Store?
Use a Progressive Web App (PWA). TapSay is the leading PWA travel translator: open Safari, go to tapsay.me/app, tap Share → Add to Home Screen. No App Store, no Apple ID, full offline use after one visit. See our full PWA install guide.
Can iPhone translate text in photos?
Yes. Apple Translate handles photo translation in iOS 18 via the Camera app and Messages. Google Translate's camera mode is more powerful for non-Latin scripts (Greek, Thai, Arabic, Cyrillic). Both work with the iPhone camera; Apple Translate is more privacy-respecting (on-device for downloaded languages).
Which translator app uses the least battery on iPhone?
Apple Translate (on-device, optimized for iOS) and TapSay (PWA, minimal background activity). Voice-conversation modes (Microsoft, SayHi, iTranslate Pro) use the most battery because they run continuous microphone + audio output.
For more comparisons: Best translator app for Android (2026), 8 Google Translate alternatives, 7 translator apps with no signup.
Add TapSay to your iPhone Home Screen (no App Store)
Open tapsay.me/app in Safari. Tap the Share button (square with up arrow). Scroll down, tap "Add to Home Screen". Done — 119 languages cached offline, 45 free phrases unlocked, no Apple ID required.
Open TapSay in Safari →Read next:
- Best Translator App for Android in 2026 — the Android counterpart
- How to install TapSay as a PWA on iPhone (full HowTo)
- 8 Best Google Translate Alternatives for 2026
- TapSay vs iTranslate — why skip the $5.99/mo subscription
- TapSay vs DeepL — offline phrasebook vs online neural translator
- Best Translator App for Digital Nomads in 2026
- Translator app glossary — 22 terms defined