Add the sentences you will really say, hear them in a natural voice, practice them seven ways and talk them through with an AI tutor. Keep a streak that never drains an energy bar. Free, with no ads.
Side by side
Both apps are free to start. The difference is what “free” buys you, and whether the course is theirs or yours.
| Feature | Duolingo | |
|---|---|---|
| Learn your own sentences | ✓ Type any sentence. It is translated, spoken aloud, split word by word and saved for practice. | ✗ Courses are fixed. There is no way to add your own phrases. |
| What free gets you | ✓ Free. No paywall, no premium tier today. Fair-use limits: 100 new phrases and 200 speaking exercises a day, signed in. | ◐ All courses, with ads and an Energy meter that drops one point per question, right or wrong. [2] |
| Ads | ✓ No ads, no ad SDK in the app at all. | ✗ Yes on the free tier; removed by Super. [1] |
| AI conversation practice | ✓ Talk: 10 scenarios, A1–B1, briefed on your own saved phrases. 30 conversations a day signed in. | $ Roleplay and Video Call with Lily are in Duolingo Max, for 7 languages from English. [5] |
| Spaced repetition | ✓ FSRS-4.5 on every phrase, yours or the course’s. Switched on for everyone, nothing to configure. 7-day forecast. | ◐ Half-Life Regression model behind the scenes; the fuller Practice Hub review is a Super feature. [7] |
| Streak freezes | ✓ Start with 2, earn more by practicing. Applied automatically on a missed day. | ◐ Equip up to 2; bought with gems or earned. [9] |
| Leagues | ✓ 7 leagues, Bronze to Legend. You promote by clearing a weekly XP threshold; nobody is ranked against you. | ◐ Weekly leagues Bronze to Diamond, ranked against other learners. [10] |
| Speaking practice | ✓ Speech-checked word by word. A mumble is a free retry, never a false pass. | ✓ Speaking exercises inside lessons. |
| Guided course | ✓ Learning Journey: 13 subjects, A1–B2, 120 units of 8 sentences per pair, 35 pairs. Human-curated. | ✓ Long, deep courses in 40+ languages. [3] |
| Masculine / feminine forms | ✓ Every sentence is stored in both forms with a one-tap ♂/♀ toggle. Built for Hebrew, Arabic, Russian and friends. | ✗ Sentences come as written in the course. |
| Works offline | ✓ Saved phrases, their audio and your downloaded course work offline. Progress syncs when you are back. | ◐ Lesson downloads are widely reported as a Super/Max feature; check Duolingo’s help for current terms. |
| Languages | ✓ 35 languages to learn, any pair for your own phrases. App interface in 11 languages. | ✓ 40+ languages. [3] |
| Platforms | ◐ Android on Google Play today. iPhone version in testing, coming soon. | ✓ iOS, Android and web. |
| Paid tiers | ✓ None. | $ Super $12.99/mo or $83.99–95.99/yr; Max about $30/mo. US App Store list prices. [3] |
Bracketed numbers point to the sources at the bottom of this page. Duolingo details are as published on 2 September 2026; features and prices change, so check their site for today's terms.
Personalization
Duolingo’s famous odd sentences are a deliberate teaching device [11], but they are still Duolingo’s sentences. In PhrasiGo you type the line you needed yesterday and could not say. It comes back translated, spoken in a natural voice, split word by word so you can tap any word for its meaning, and stored in both gendered forms when the language has them.
Prefer to be guided? The Learning Journey is a human-curated trail through 13 subjects from A1 to B2, and it mixes your own phrases into course practice so the two never compete for your time.

AI tutor
Duolingo’s Roleplay and Video Call with Lily are its AI conversation features, and they live in Duolingo Max [5]. PhrasiGo’s Talk is included for everyone: ten everyday scenarios, a level selector from A1 to B1, voice or text.
The difference is what the tutor knows. Talk is briefed on the phrases you have saved and steers the conversation so you get to use them. When you slip, it offers a more natural version with a one-line why, and at the end it lists the phrases worth saving, one tap from your phrasebook.
Motivation
Duolingo’s free tier now runs on Energy: a battery that drops one point per question, right or wrong, and refills over time or with gems [2]. PhrasiGo has no meter. A wrong answer costs one XP and gets a second chance at the end of the session; it never costs you the right to keep going.
Streaks work the way you would hope. Any practice day keeps it alive. You start with two freezes, earn more as you go, and they are spent for you automatically on a missed day. Leagues are seven honest tiers: clear the weekly XP threshold and you promote. Nobody is ranked below you to make you feel fast.
Memory
Duolingo published its own memory model, Half-Life Regression, in 2016 [7]. PhrasiGo runs FSRS-4.5, the modern open scheduler, on every phrase you own and every course sentence you have met. Each one comes back just before you would forget it, and the Progress tab shows how many reviews are coming this week.
The same schedule powers your Memory Reef: every phrase is a fish, due phrases are hungry, and feeding one is a real review that keeps the reef healthy.

Making the move
Your streak discipline transfers. What changes is whose sentences you are practicing.
No account needed to start. Choose what you speak and what you are learning; any of the 35 languages works in either role.
The one you could not say at the pharmacy. The question your colleague asked. Each takes seconds to add and arrives with audio and word meanings.
The A1 units are a gentle on-ramp, and your own phrases ride along inside course practice. Set the 60-XP daily goal and let the streak do its thing.
Pick a scenario at your level. The tutor already knows your phrases and will find a moment for each one.
Download PhrasiGo for free and add your first phrase in under a minute.
Free · No ads · No account needed to start · iOS coming soon
Checked 2 September 2026. PhrasiGo claims describe the app as shipped on Google Play at the time of writing.