Numerithm vs Dochi
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Numerithm
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Numerithm brings number theory and beginner programming together in one guided learning app. Learn ideas in small steps, run Dart code, and solve challenges with exact numerical answers. LEARN DART THROUGH NUMBERS Start with approachable lessons on values, variables, conditions, loops, totals, and functions. Then use those skills to explore factors, primes, multiples, common factors, number patterns, remainders, cycles, and other useful ideas. WRITE AND RUN REAL CODE Use the built-in Dart workspace to try an idea, print intermediate values, and calculate an answer. Starter code helps you begin without forcing one solution. Programs run locally with time limits and cannot access your files or the internet. SEE CODE ONE STEP AT A TIME Use the step-by-step view to follow each instruction and watch variable values change. This makes loops, conditions, and calculations easier to understand. SOLVE NUMBER CHALLENGES Each challenge explains the mathematical idea, gives a clear numerical goal, and offers hints when needed. Enter one number to check your answer, or use code to explore a larger search. KEEP YOUR WORK - Save lesson and challenge code automatically - Store useful code snippets for later - Track completed lessons and solved challenges - Earn learning achievements - Create separate local learner profiles with names and avatars LEARN COMFORTABLY - Read-aloud controls with adjustable speech speed - Light, dark, and system appearance choices - Friendly explanations that remain mathematically accurate - Local progress with no account required Introductory lessons are included at no cost. A one-time Full App Unlock opens the complete lesson collection for every learner profile on the device. There is no subscription. Whether you are beginning to code or want a practical way to explore number theory, Numerithm gives you a calm place to learn, experiment, and solve.
Dochi
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Dochi is the Israeli Hebrew Institute's way to learn the Hebrew people actually speak in Israel, a few minutes at a time. EVERY MORNING you should do ONE TASK - so you stay in the Hebrew loop its a short task that waits for you each weekday: translate a line, say something out loud, explain a word, get through a small scene. Answer in writing or with your voice. Then see the teacher's model answer and compare. A COURSE THAT BUILDS Lessons go from your very first words to real conversations: introducing yourself, what you want and need, going and coming, asking questions. Each lesson is split into short screens with a small try after each block, and you can test yourself past what you already know. WORDS THAT STAY Every word comes with a real sentence and its sound. A review deck brings each word back just before you would forget it, in Latin letters or in Hebrew letters with vowels. SPEAK, NOT JUST READ Record yourself and hear the Hebrew read by your teacher. Switch between transliteration and Hebrew script whenever you like. LEARN WITH PEOPLE On the Community plan, join a live weekly session on Zoom with Tamir, your teacher, and learn in a chevruta: a small group that meets every week, the way Hebrew has been studied for two thousand years. MADE BY TEACHERS Dochi is built by the Israeli Hebrew Institute, whose teachers have taught Hebrew to learners around the world. Dochi the hoopoe, Israel's national bird, keeps you company along the way. New members start with a free week with everything open.
Screenshots
Verdict
The clearest difference is in-app purchases: Dochi at none against Numerithm's 1. Numerithm's advantage is device support (4 vs 2) and iOS requirement (13.0 vs 15.0). On price and ads there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Numerithm sells 1 one-off in-app purchase. Dochi asks for nothing beyond the download.
| Parameter | Numerithm | Dochi |
|---|---|---|
| Price | Free | Free |
| Update frequency | โ | Every 4 days |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad, iPod, Mac โ better | iPhone, iPod |
| Requires iOS | 13.0 โ better | 15.0 |
| Further details โ not scored | ||
| Size | 32 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Space 64 LLC | zohar tamir |
In-app purchases
Numerithm
- Full App Unlock$5.99
Dochi
No in-app purchases









