IZI vs Intervalia
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IZI
Learn Uzbek grammar with visual rules and memorize new words through associations. Practice listening comprehension with dialogues and improve pronunciation with phonetic exercises. Connect with a teacher via chat for online support.
- Grammar learning with visual rules
- Vocabulary memorization via associations
- Knowledge reinforcement trainer
- Listening practice through dialogues
- Phonetics practice
- Online teacher chat
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Система обучения включает: - Обучение грамматике с помощью наглядных правил; - Запоминание новых слов через ассоциации; - Тренажер для закрепления знаний; - Диалог – практика для восприятия языка на слух; - Запомните – работа с фонетикой; - Чат – online-связь с преподавателем.
Intervalia
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Intervalia is a musical ear trainer. The app plays two notes and you name the interval between them - from unison to octave, ascending, descending or played together. Real instruments. Intervals are played on a concert grand piano and an acoustic guitar - recordings of real instruments, not a synthesizer. Choose one or more octaves for the interval, or let the app pick. Every answer explained. After you answer, the interval is shown on the staff, on the keyboard or guitar fretboard, and with note names. Listen to the interval again, or tap any key or fret to hear it on its own. 17 levels. The course goes from contrasting intervals to the most similar ones: first ascending, then descending and harmonic. Earn up to three stars on every level. All levels are open from the start. Custom practice. Pick the intervals, direction, instrument and octave you need and practice as long as you like. Intervals you miss more often come up more often. Statistics. Accuracy for every interval and direction shows what comes easily and what needs more work. Made for everyone. The app works with the largest text sizes, VoiceOver, Bold Text and Reduce Motion, in light and dark mode, in portrait and landscape. Available in English and Russian. Honest. Free, no ads, no sign-up — every feature is available from the start. If the app helps you, you can thank the developer with an optional tip; it doesn't unlock anything. The app collects no data.
Screenshots
Verdict
The clearest difference is in-app purchases: IZI at none against Intervalia's 3. IZI also leads on iOS requirement (13.0 vs 17.0). On price 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. Intervalia sells 3 one-off in-app purchases. IZI asks for nothing beyond the download.
| Parameter | IZI | Intervalia |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (3 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | — | Every 3 days |
| Ads | — | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | — | iPhone — better |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 43 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | IZI PRO TEAM, MChJ | Kostya Blokhin |
In-app purchases
IZI
No in-app purchases
Intervalia
- Small thanks$0.99
- Thanks$2.99
- Big thanks$4.99









