Polli vs FlowLingua
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Polli
This app helps language learners advance beyond the basics by generating interactive stories on any topic. Users can tap on words for deeper insights and save them to their library. An optional upgrade unlocks unlimited creation, audio playback, and more.
- AI-generated interactive stories
- Tap-to-learn word definitions
- Save vocabulary to library
- Customizable story mood and style
- Natural-sounding audio playback (PRO)
- Unlimited content creation (PRO)
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Once you’ve learned the basics of a language, the next challenge is finding materials to reinforce what you know and expand your knowledge. Learners tend to hit a plateau and have trouble pushing their skills further. Polli solves this by allowing you to generate content on any topic in your language, controlling the mood, style, and grammar. The stories you create are interactive. Every word is tappable and savable to your Library. Anytime you’re confused about a word or expression, you can generate an insight to dive deeper into the usage. Upgrade to Polli PRO to get - Unlimited story creation - Unlimited grammar insights - Unlimited translations - Listen to your stories with high quality, natural sounding voices Sign up for a free trial to try out all the PRO features today! Polli currently offers Catalan, Chinese, Dutch, English, Finnish, French (FR/QC), German, Greek, Hungarian, Italian, Japanese, Korean, Polish, Portuguese (PT/BR), Romanian, Russian, Spanish (MX/EU), Swedish, Turkish, Ukrainian. More coming soon! Let us know which language you’d like to use with Polli. Privacy Policy: https://getpolli.com/privacy-policy Terms of Service: https://getpolli.com/terms-of-service
FlowLingua
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Other apps make you click. We let you read. FlowLingua is a bilingual reader that turns any foreign-language book into a bilingual book. Import your own books, articles, videos and audio — or start with the ready-made content in the library. Read and listen to foreign-language content as if it were your native language. Every word and every sentence is already translated — synced to the audio, with no clicking at all. No dictionary, no vocabulary drills, no loss of flow. It is the digital heir of the interlinear tradition — the bilingual books and parallel-text editions of Ilya Frank, but without the page flipping, and for any book you choose. ▸ WHAT FLOWLINGUA DOES • Automatic bilingual reading — the Birkenbihl method in its purest form: every word of your book sits right under the original, including grammatical structure. • Translated sentence by sentence — plus the natural sentence translation, so nothing stays unclear. • Synced to the audio — text and original audio run word by word together (karaoke principle). You train pronunciation, rhythm and listening comprehension. • Import your own content — EPUB, PDF, DOCX, YouTube videos and audio files are decoded and translated automatically. • Easy reading — a dedicated Birkenbihl mode for relaxed, uninterrupted reading. • Vocabulary tracking — unknown words come pre-marked; you remove the mark once you know them. • Shadowing & speaking practice — repeat sentences right after native speakers, with sentence repeat. • Learn offline — download content and keep learning anywhere. Progress syncs automatically. • 20 languages — from English, Spanish and French to less common languages. • Listening-Reading (L-R) without the three-window setup — one screen. ▸ HOW IT WORKS 1. Import — bring your own book, video or audio, or pick ready-made content. 2. Understand — everything is already translated, word by word and sentence by sentence. 3. Stay in flow — press play and let the audio guide you. The translation is there when you need it. ▸ WHO IS THIS FOR? • You want the books you actually care about as bilingual books — without flipping pages or clicking every word. • You want to read foreign-language books and understand them right away. • You know the Birkenbihl method and finally want a tool that decodes automatically. • You come from a reader where you have to click every single word — and you're done with the clicking. • You've drilled vocabulary and still never understood a real book. ▸ WHY FLOWLINGUA EXISTS I wanted to learn languages — but memorizing vocabulary and grammar put me off. So I researched how polyglots really do it: understand, don't memorize. That's why I built FlowLingua as an app. FlowLingua combines three proven input methods: the Birkenbihl method (decoding), Listening-Reading (listening and reading at the same time) and Comprehensible Input by Stephen Krashen (understandable content that interests you). ▸ SUPPORTED FORMATS EPUB · PDF · DOCX · YouTube · MP3 & audio files ▸ FREQUENTLY ASKED QUESTIONS Can I use FlowLingua as a bilingual book reader? Yes — import any EPUB, PDF, video or audio file and FlowLingua turns it into a bilingual book: original and translation together, word by word and sentence by sentence, synced to the audio. The library also has ready-made content to start with. Do I need prior knowledge? No. The word-for-word translation makes texts understandable even if you don't know a single word yet. How is this different from vocabulary apps? You learn with real books, videos and audio — not quiz exercises. Understanding comes first. Does it work offline? Yes, content can be downloaded. Stay in flow. Not in the dictionary. 7-day free trial. ▸ ATTRIBUTION Sample content “Daily Routine”: work by SpeakSmart Academy, licensed under CC BY 4.0 (creativecommons.org/licenses/by/4.0/). Translated and presented in FlowLingua. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
Polli and FlowLingua 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. Polli sells 3 in-app purchases, starting at $4.99 per 7 days and FlowLingua sells 5 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
Polli ships an update every 5 days, FlowLingua every 4 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.
| Parameter | Polli | FlowLingua |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 days | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 65 MB | 66 MB |
| Age rating | 12+ | 4+ |
| Developer | AnApps, LLC | Tomas Chladek |
In-app purchases
Polli
- PRO Weekly$4.997 Days
- PRO Monthly7 Days trial$9.991 Month
- PRO Yearly14 Days trial$99.991 Year
FlowLingua
- Flow — Monthly7 Days trial$2.991 Month
- Audio add-on — Monthly$2.991 Month
- Power$8.991 Month
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- Flow — Yearly7 Days trial$22.991 Year
- Power$69.991 Year









