Ello vs Vimi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ello
This app offers personalized reading and math instruction for children aged 5-9. Utilizing AI, it listens to children read aloud, identifies errors, and adapts lessons to their individual learning pace. It features a vast library of decodable books and covers foundational math concepts.
- AI reading tutor
- Adaptive learning
- 1,200+ decodable books
- Math games
- Daily personalized quests
- Phonics instruction
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Ello is an AI tutor for reading and math, ages 5 to 9 (Kinder to 3rd grade). Your child reads and talks out loud. Ello listens to every word and teaches in the moment. Start free. The Free plan includes daily lessons, and your first week of Ello Unlimited is on us. No credit card. 88% of children read more with Ello.* Named one of TIME's Best Inventions. Rated by Common Sense Media. Featured on Good Morning America. HOW ELLO TEACHES • It listens. When your child stumbles on a word, Ello hears it and helps them sound it out instead of saying the word for them. • It talks back. After a story, Ello asks what happened, listens to the answer, and responds to what your child said. • It explains math. Ello talks through each step out loud, from counting to multiplication, and lets your child find the answer. • It starts at your child's level. Ello places your child in reading and math, and you can change the level anytime in Settings. CREATE A STORY Your child makes up a story. Ello turns it into a real book with pictures, then teaches them to read it. BUILT FOR FAMILIES • Up to 4 children on one account, each with their own level, stars, and books. • A parent dashboard with lessons completed, words read, and stars earned. • Texts that share the funny, sweet things your child says to Ello. • No ads. BUILT BY TEACHERS Thirty-seven teachers and learning researchers built Ello. WHAT PARENTS SAY "My son is shy about attempting to read out loud with me, but he loves reading out loud with Ello!" (App Store review) "It's actually engaging with my son and listening to what he says and correcting and encouraging him." (App Store review) PLANS • Free: daily reading and math lessons, shared by every child on the account. • Ello Unlimited: unlimited learning for every child and full parent reports. Optional subscription, billed monthly or yearly. • Every family gets Ello Unlimited free for their first 7 days. *Survey of Ello families. Questions? support@ello.com
Vimi
This AI-powered math tutor creates personalized learning paths to help users master math concepts. It offers adaptive lessons, clear explanations, and engaging exercises tailored to school curricula, making learning approachable and fun.
- Personalized learning paths
- Adaptive lessons
- Curriculum-aligned content
- Clear explanations
- Engaging exercises
- Instant feedback and solutions
- Progress tracking
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Master math with Vimi, your personal AI tutor that makes learning simple, fast, and fun. Vimi figures out your level and designs a personalized path that fits you. You’ll get quick, adaptive lessons that fill in your knowledge gaps and help you feel in control again. Vimi helps you finally feel confident in class with short, engaging lessons built around your school’s curriculum, so every topic you practice matches what you’re learning in school. It’s like having a friendly local tutor who explains things clearly, no confusing terms, just simple explanations that actually make sense. With Vimi, math feels approachable and fun, thanks to a game-like experience that keeps you motivated. Each session includes short exercises that focus on what you need most, instant feedback with helpful hints and full solutions, plus a progress tracker so you can see how far you’ve come. Learn key topics including: Fractions, percentages, equations, inequalities, geometry, functions, probability, statistics, logic, and more. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Ello at none against Vimi's 10. Ello also leads on ads (none vs shown) and review sentiment (88% vs 58%). Vimi's advantage is ratings volume (1K vs 245). On price, rating, monetization model and chart position 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
Both are free to download. Vimi sells 10 in-app purchases, starting at $19.99 per month. Ello asks for nothing beyond the download.
Ello holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 245 and 1K respectively. Written reviews point the same way: 88% of Ello's written reviews are positive against 58% of Vimi's.
Ello ships an update every 2 days, Vimi every 9 days. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.
| Parameter | Ello | Vimi |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (245 ratings) — better | 4.5 (1K ratings) |
| Positive reviews | 87.9% of reviews — better | 58.3% of reviews |
| Number of ratings | 245 | 1K — better |
| Update frequency | Every 2 days — better | Every 9 days |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Best chart rank | #62 — better | #119 |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 208 MB | 123 MB |
| Age rating | 4+ | 4+ |
| Developer | Ello Technology, Inc. | VIMI ADAPTIVE LEARNING LTD |
Customer experience
Ello
Vimi
In-app purchases
Ello
No in-app purchases
Vimi
- Vimi Monthly Premium1 Month trial$19.991 Month
- summer_promotion1 Month trial$19.991 Month
- Vimi Monthly Premium3 Days trial$19.991 Month
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- Vimi Monthly Premium7 Days trial$19.991 Month
- Vimi monthly Premium$19.991 Month
- Vimi Monthly Premium1 Month trial$24.991 Month
- Vimi Quarterly Premium3 Days trial$44.993 Months
- Vimi 3 months subscription3 Days trial$44.993 Months
- Vimi Annual Premium3 Days trial$94.901 Year
- Vimi Premium Annual7 Days trial$154.991 Year







