MosaLingua vs Rosetta Stone: which to choose, and what each costs
Prices checked 12 Oct 2026; Rosetta Stone's on 6 Oct 2026 · How we check
MosaLingua if you want to build vocabulary a few minutes a day.
Rosetta Stone if you want a course with lessons in order.
| Question | MosaLingua | Rosetta Stone |
|---|---|---|
| A year costs | $71.88 a year for all 11 languages, or $9.99 month to month | $159 a year for all 25 languages, or $19.99 month to month |
| A lesson is | Flashcards of everyday words and phrases with audio: recall each one, rate yourself, and MosaLingua schedules the next review; dialogues and listening practice sit alongside. | Pictures and audio with no translation at all, and your pronunciation scored. |
| Try it | A free trial, then a 30-day money-back guarantee on website and Android purchases (not App Store ones). | A 7-day free trial in the app, and a 14-day money-back guarantee when you buy on its site. |
| App Store rating, 12 Oct 2026 and 10 Oct 2026 | 4.6 out of 5 from 1,839 ratings | 4.6 out of 5 from 1,918 ratings |
| Google Play rating, 12 Oct 2026 and 11 Oct 2026 | 3.9 out of 5 from 10,662 ratings | 4.6 out of 5 from 406,024 ratings |
How a lesson works in each
MosaLingua: vocabulary app
Rosetta Stone: course app
Side by side
| Compare | MosaLingua | Rosetta Stone |
|---|---|---|
| CEFR levels | — | — |
| A year costs | $71.88 a year for all 11 languages, or $9.99 month to month | $159 a year for all 25 languages, or $19.99 month to month |
| What it is | Vocabulary and flashcards: Flashcards of the most useful words and phrases, reviewed on a spaced-repetition schedule | Course app: Immersion-style lessons without translation, with speech scoring |
| Per month at annual billing | $5.99/mo ($71.88 a year) | $13.25/mo ($159 a year) |
| Monthly plan | $9.99 | $19.99 |
| Lifetime plan | No lifetime plan | No lifetime plan |
| Free tier | Free download and a free trial; the full set of features needs a Premium subscription. | Free sample lessons on its site and a one-time 7-day free trial in the app; no lasting free plan. |
| Languages offered | 11 | 25 |
| Speech recognition | — | Yes |
| Live tutoring | — | Coaching sessions with a Rosetta Stone certified tutor. |
| Offline mode | Yes | Yes |
| Placement test | — | — |
| Refund or trial | A free trial first, then a 30-day money-back guarantee on website and Android purchases; not on App Store purchases. | A one-time 7-day free trial in the app. Bought from Rosetta Stone: a 14-day money-back guarantee, refunded by its Memberships team by email or phone. App Store purchases go through Apple; a retailer's follow that retailer's policy. |
| Platforms | iOS, Android, Web | iOS, Android |
| Company | MosaLingua (digiSchool Group), France | Rosetta Stone LLC (a division of IXL Learning) |
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MosaLingua
Vocabulary and flashcards
In our comparison: strongest on price and trial and refund terms, weakest on speaking practice.
$71.88 a year $5.99 a month, billed yearly · MosaLingua Premium$9.99 on the monthly plan
Flashcards of the most useful words and phrases, reviewed on a spaced-repetition schedule. A 30-day money-back guarantee.
Rosetta Stone
Course app
In our comparison: strongest on trial and refund terms and the number of languages, weakest on the free tier.
$159 a year $13.25 a month, billed yearly$19.99 on the monthly plan
Immersion-style lessons without translation, with speech scoring. Live tutoring sold beside the app (Tutoring).
MosaLingua is a vocabulary app and Rosetta Stone is a course app. Both teach French, Spanish, Chinese, German and 7 more languages.
Which to choose
You want to build vocabulary a few minutes a day
MosaLingua
MosaLingua is a vocabulary app: flashcards of everyday words and phrases with audio: recall each one, rate yourself, and MosaLingua schedules the next review; dialogues and listening practice sit alongside.
You want a course with lessons in order
Rosetta Stone
Rosetta Stone is a course app: pictures and audio with no translation at all, and your pronunciation scored.
You want the smaller yearly bill
MosaLingua
A year of MosaLingua costs $71.88 for all 11 languages; a year of Rosetta Stone, $159 for all 25 languages.
You want to practise speaking
Rosetta Stone
Rosetta Stone: Live tutoring is sold beside the app, and speech recognition scores how you say words. MosaLingua: Its pages don't say whether it listens to you speak.
Where they really differ
- Price: MosaLingua: $71.88 a year for all 11 languages, or $9.99 month to month. Rosetta Stone: $159 a year for all 25 languages, or $19.99 month to month.
- A lesson: MosaLingua: Flashcards of everyday words and phrases with audio: recall each one, rate yourself, and MosaLingua schedules the next review; dialogues and listening practice sit alongside. Rosetta Stone: Pictures and audio with no translation at all, and your pronunciation scored.
- A real person: MosaLingua doesn't mention live tutors. Rosetta Stone sells live tutoring alongside the app.
- Speaking: MosaLingua doesn't say whether it listens to you speak. Rosetta Stone listens to you speak.
- Trying it: MosaLingua: A free trial, then a 30-day money-back guarantee on website and Android purchases (not App Store ones). Rosetta Stone: A 7-day free trial in the app, and a 14-day money-back guarantee when you buy on its site.
- Both: Work offline.
Plans and prices
MosaLingua
| Plan | Billing | Price | Per month | Covers |
|---|---|---|---|---|
| MosaLingua Premium yearlyPremiumSold on MosaLingua's website; $5.99 a month. Includes 600 minutes of MosaChat-AI conversation. | Annual | $71.88 | $5.99/mo | all languages |
| MosaLingua Premium monthlyPremiumSold through the app stores; includes 600 minutes of MosaChat-AI conversation. | Monthly | $9.99 | $9.99/mo | all languages |
Rosetta Stone
| Plan | Billing | Price | Per month | Covers |
|---|---|---|---|---|
| YearlyLabelled "Save 33%" against the monthly plan. | Annual | $159 | $13.25/mo | all languages |
| MonthlyAll 25 languages. | Monthly | $19.99 | $19.99/mo | all languages |
What will MosaLingua cost you for the months you study?
Total billed over 12 months
$48.00 less on annual billingOne yearly payment of $71.88.
What each plan covers. Monthly: all languages. Yearly: all languages.
Questions people ask
Is MosaLingua better than Rosetta Stone?
Neither is better for every learner. Choose MosaLingua if you want to build vocabulary a few minutes a day and the smaller yearly bill. Choose Rosetta Stone if you want a course with lessons in order, more speaking practice, a trial or money back and more languages to choose from. In our comparison, MosaLingua is strongest on price and trial and refund terms, weakest on speaking practice, and Rosetta Stone strongest on trial and refund terms and the number of languages, weakest on the free tier.
Which is cheaper, MosaLingua or Rosetta Stone?
MosaLingua costs less by the year: $71.88 for all 11 languages, where a year of Rosetta Stone is $159 for all 25 languages. Month to month, and with any lifetime plan, the plans tables above give both.
Do MosaLingua and Rosetta Stone teach the same languages?
MosaLingua lists 11 languages and Rosetta Stone 25, each counting varieties its own way; 11 languages are taught by both. Each app's page here lists its languages, with a page for each language two or more apps teach.
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