Comparison

Neptune GX vs Polyglottos

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

Head to head
About

Neptune GX

Features
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The only thing that makes our products different is that it saves you more time! The APP wirelessly connects to Neptune GX's "Edge Gateway" via BLE to meet a variety of field installation, diagnostic, and maintenance needs across the four quadrants of Generation/Grid Edge/Load/Storage. At the same time, users can access Neptune GX's "Cloud Application" through the APP. Over 5 years of continuous R&D, our platform has accumulated more than 10GW of various new energy applications. The Neptune GX platform has a comprehensive user system that enables our customers to effectively manage their distribution business, physical and digital assets, and the full product lifecycle (Production, R&D, and O&M) for all types of business partners in all regions of the world.

About

Polyglottos

Translate and learn languages offline with over 200 supported languages. Features voice input/output, phrasebooks with transliterations, and a spaced repetition flashcard system. Prioritizes user privacy with no accounts or data collection.

Highlights
  • Offline translation for 200+ languages
  • Voice input and output
  • Phrasebook with transliterations
  • Spaced repetition flashcards
  • Multiple learner profiles
  • No account or data tracking
Features
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No wifi. No accounts. No tracking. Just translation. Translate between 200+ languages entirely on your device, with no internet connection required. TRANSLATION - Speak or type in one language, get output in another - Voice input with on-device speech recognition - Natural voice output with on-device text-to-speech - 200+ languages supported worldwide - Works in airplane mode, remote areas, or anywhere off-grid Translation and speech recognition quality varies by language pair. Works best with widely-spoken languages. QUICK PHRASES - Tap-to-speak phrasebook for 200+ languages - Transliterations for every phrase — read unfamiliar scripts phonetically - 16 categories: greetings, medical, directions, food, emergencies, and more - 15 Arabic dialects with dedicated phrasebooks LANGUAGE LEARNING - Spaced repetition flashcard system (SRS) - Listening and speaking card types - Transliterations for unfamiliar scripts - Multiple learner profiles - Set your own daily card limits per language PRIVACY - No accounts required - No data collection of any kind - No analytics, no ads, no crash reporting - Audio processed locally and deleted immediately - Nothing leaves your device. Ever. SUPPORTED LANGUAGES Custom text-to-speech voices: Arabic, Burmese, Dari, Hindi, Kazakh, Kyrgyz, Pashto, Persian (Farsi), Sindhi, Tajik, Turkish, Turkmen, Urdu, Uzbek Arabic dialect phrasebooks: Algerian, Egyptian, Emirati, Hassaniya, Iraqi, Jordanian, Lebanese, Libyan, Moroccan, Palestinian, Saudi, Sudanese, Syrian, Tunisian, Yemeni Regional dialect phrasebooks: Pashto (Afghan), Pashto (Pakistani), Spanish (Colombian), Spanish (Mexican), Spanish (Venezuelan), Portuguese (Brazilian), Portuguese (European), Korean (North) 200+ languages with translation: Acehnese, Afrikaans, Akan, Albanian, Amharic, Aragonese, Armenian, Assamese, Awadhi, Azerbaijani, Balinese, Balochi, Bambara, Banjar, Bashkir, Basque, Belarusian, Bemba, Bengali, Bhojpuri, Bosnian, Buginese, Bulgarian, Burmese, Cantonese, Catalan, Cebuano, Central Kurdish (Sorani), Chhattisgarhi, Chinese (Mandarin), Chinese (Wu), Chinese (Gan), Chokwe, Crimean Tatar, Croatian, Czech, Danish, Dari, Dinka, Dutch, Dyula, Dzongkha, English, Esperanto, Estonian, Ewe, Faroese, Fijian, Finnish, Fon, French, Friulian, Galician, Georgian, German, Greek, Guarani, Gujarati, Haitian Creole, Hausa, Hebrew, Hindi, Hungarian, Icelandic, Igbo, Ilocano, Indonesian, Irish, Italian, Japanese, Javanese, Jingpho, Kabiyè, Kabyle, Kamba, Kannada, Kashmiri, Kazakh, Khmer, Kikongo, Kikuyu, Kimbundu, Kinyarwanda, Korean, Kurdish (Kurmanji), Kurdish (Sorani), Kyrgyz, Lao, Latgalian, Latvian, Ligurian, Limburgish, Lingala, Lithuanian, Lombard, Luba-Kasai, Luganda, Luo, Luxembourgish, Macedonian, Magahi, Maithili, Malay, Malayalam, Maltese, Maori, Marathi, Meitei, Minangkabau, Mizo, Mongolian, Mossi, Nepali, Nigerian Fulfulde, Northern Sotho, Norwegian, Nuer, Nyanja, Occitan, Odia, Oromo, Pangasinan, Papiamento, Pashto, Persian (Farsi), Plateau Malagasy, Polish, Portuguese, Punjabi, Quechua, Romanian, Rundi, Russian, Samoan, Sango, Sanskrit, Santali, Sardinian, Scottish Gaelic, Serbian, Shan, Shona, Sicilian, Silesian, Sindhi, Sinhala, Slovak, Slovenian, Somali, South Azerbaijani, Southern Sotho, Spanish, Sundanese, Swahili, Swati, Swedish, Tagalog, Tajik, Tamasheq, Tamil, Tatar, Telugu, Thai, Tibetan, Tigrinya, Tok Pisin, Tsonga, Tswana, Tumbuka, Turkish, Turkmen, Twi, Ukrainian, Umbundu, Urdu, Uyghur, Uzbek, Venetian, Vietnamese, Waray, Welsh, Wolof, Xhosa, Yiddish, Yoruba, Zulu NOTES - Large initial download — wifi recommended for setup - First translation takes a moment while models load - After that, fast Free. No subscriptions. No in-app purchases.

Screenshots

Neptune GX4 screens
Polyglottos4 screens

Verdict

The call

The clearest difference is update cadence: Polyglottos at every 4 days against Neptune GX's every 3 weeks. Neptune GX's advantage is iOS requirement (13.0 vs 17.6). 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

Neptune GX ships an update every 3 weeks, Polyglottos every 4 days. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 7 level
Neptune GX versus Polyglottos: the parameters behind the verdict, then further details
ParameterNeptune GXPolyglottos
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 3 weeksEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.6
Further details — not scored
Size232 MB1.3 GB
Age rating4+4+
DeveloperFOMWARE LIMITEDIn Situ Services, LLC

In-app purchases

None

Neptune GX

No in-app purchases

None

Polyglottos

No in-app purchases

Questions

Is Neptune GX free?
Neptune GX is free to download, with no in-app purchases.
Is Polyglottos free?
Polyglottos is free to download, with no in-app purchases.
Do Neptune GX or Polyglottos have ads?
Neither Neptune GX nor Polyglottos shows ads.
Which is updated more often, Neptune GX or Polyglottos?
Neptune GX ships an update every 3 weeks, and Polyglottos every 4 days. Most recently, Neptune GX was updated on October 27, 2026 and Polyglottos on October 28, 2026.

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