Comparison

OffChat vs Voca Interpreter

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

OffChat

Features
Read full description

No Wi‑Fi on the plane? No roaming abroad? OffChat is an AI travel assistant that keeps working when the internet doesn't. Prepare while you're online, then use everything offline: ask questions, check your flight and hotel details, convert prices and show key phrases to locals. GET READY BEFORE YOU FLY • A "Ready to fly" checklist shows what is saved on your iPhone and what still needs internet. • The assistant runs on your device: Apple Intelligence when available, or OffChat's own offline model (a one-time 1.1 GB download on Wi‑Fi). AN ASSISTANT THAT KNOWS YOUR TRIP • Save your destination, dates, flights, accommodation and notes. • Share a booking confirmation from Mail or Safari straight into your trip. • Ask "Summarize my trip plan" or "What should I pack?" and get answers based on what you saved. PLAN ONLINE, USE IT OFFLINE • When you're connected, the assistant finds real places with Apple Maps — names, addresses and coordinates — for your itinerary. • Save the answer to your trip: plans and places stay on your iPhone for when you're offline. TRAVEL TOOLS THAT WORK OFFLINE • Currency converter with the latest European Central Bank reference rates saved on your device. • Translation with Apple's on-device translation (download the language before you go). • Essential phrases for restaurants, taxis, hotels and emergencies, saved in your destination's language and shown in large text. QUICK ACCESS • Widget with your readiness and trip countdown. • Siri and Shortcuts: "Ask OffChat", "Convert currency with OffChat", "Is OffChat ready to fly?" PRIVATE BY DESIGN • Offline, answers are generated on your iPhone or iPad. Your chats, trips and phrases are stored only on your device. • Online mode (you can turn it off) searches places with Apple Maps and, on iOS 27, can use Apple's Private Cloud Compute. • Optional anonymous usage statistics never include what you type. GOOD TO KNOW • Requires iOS 26 or later. • The assistant can't check live information such as flight status, weather or prices. For visas and entry rules, confirm with official sources. • Exchange rates are reference rates; card and exchange-office rates will differ.

About

Voca Interpreter

Features
Read full description

Speak, and hear it in the other language. No account, no server. Voca is an interpreter where translation, text recognition and speech all run on your device. Download a language pack once and it keeps interpreting in airplane mode — no roaming needed. USE IT FOR - Travel: ask directions or order food — your words are spoken aloud in the other language - Face-to-face: the screen splits in two and detects who is speaking - Menus & signs: point the camera and the text is read and translated - Meetings & talks: running captions of the speech around you 32 LANGUAGES English, Japanese, Chinese, Spanish, French, German, Russian and more — every language can be downloaded as an offline pack. YOUR CONVERSATIONS STAY ON YOUR PHONE No account, no developer server, no analytics, no ads. History and saved phrases live only on this device and can be deleted anytime. FEATURES - Essential phrase packs: 48 travel phrases in 8 situations, free and ready with no pack or connection - Full phrasebook (optional one-time purchase, not a subscription): 48 more phrases in 8 more situations — directions, cafe & bar, pharmacy, payment & refunds, car rental, business, making friends, kids & family. All interpreting features stay free - Voice interpreting with captions and speech at once - Face-to-face mode with split screen and automatic language detection - Camera translation (Latin, Korean, Japanese, Chinese scripts) - Live captions for the speech around you - History and phrasebook with replay, copy and favorites HONEST NOTES - Transcription uses only on-device speech recognition — audio is never sent to a server. Languages or devices without on-device recognition ask you to type. - Results are machine translation; verify important information. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://creativelab-lee.github.io/voca-privacy/

Screenshots

OffChat4 screens
Voca Interpreter4 screens

Verdict

The call

The clearest difference is update cadence: Voca Interpreter at every 5 days against OffChat's every 7 months. Voca Interpreter also leads on iOS requirement (15.5 vs 26.0). On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

OffChat ships an update every 7 months, Voca Interpreter every 5 days. Both last shipped on October 31, 2026.

Scorecard2 real differences · 4 level
OffChat versus Voca Interpreter: the parameters behind the verdict, then further details
ParameterOffChatVoca Interpreter
PriceFreeFree
Update frequencyEvery 7 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPod
Requires iOS26.015.5 — better
Further details — not scored
Size20 MB100 MB
Age rating4+4+
DeveloperMobivalleyINPHIL CHOI

In-app purchases

None

OffChat

No in-app purchases

None

Voca Interpreter

No in-app purchases

Questions

Is OffChat free?
OffChat is free to download, with no in-app purchases.
Is Voca Interpreter free?
Voca Interpreter is free to download, with no in-app purchases.
Do OffChat or Voca Interpreter have ads?
Neither OffChat nor Voca Interpreter shows ads.
Which is updated more often, OffChat or Voca Interpreter?
OffChat ships an update every 7 months, and Voca Interpreter every 5 days. Most recently, OffChat was updated on October 31, 2026 and Voca Interpreter on October 31, 2026.

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