Numerithm vs Pink Trope
Price, ratings, monetisation and update history for both apps, side by side — 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.
Pink Trope
Practice chanting Torah and Haftarah portions with an app that listens to your singing and provides instant feedback on both words and melody. It supports multiple traditions and keeps your voice data private on your device.
- Real-time word recognition
- Pitch analysis for melody
- Supports Ashkenazi and Sephardi traditions
- Includes all Torah and Haftarah portions
- On-device voice processing for privacy
- Reference screen for cantillation marks
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Chant your Torah or Haftarah portion out loud and find out, on the spot, which words you got right and which notes you missed. THE GAP THIS FILLS Every other trope app plays the tune at you. None of them listen. You can play a recording a hundred times and still not know whether what came out of your mouth matched it. A tutor knows, which is why families spend thousands on one. Pink Trope listens, and it grades both halves of the job. WORDS AND MELODY, SCORED SEPARATELY - Every word is marked read, unsure or missed, using the Hebrew speech model built into your iPhone - Your sung pitch is compared against the tune the marks call for, note by note - Sing in whatever key suits your voice. It grades the shape, not the key - An octave jump costs nothing, which matters for a voice that is changing - Singing everything on one note scores near zero, because that is not chanting MORE THAN ONE TRADITION Ashkenazi and Sephardi, not one house melody. The cantillation marks are already in the text, so a tradition is a table of motifs rather than a library of recordings. That is why more than one ships. THE WHOLE TEXT, MARKS INTACT - Every Torah portion and every Haftarah - Pointed Hebrew with the cantillation marks shown as you read - Hear the tune first, built from the marks in the passage you are actually preparing - A reference screen for every mark, so you can learn them by name YOUR VOICE STAYS ON YOUR PHONE Recording, word recognition and pitch analysis all happen on this device. Nothing is uploaded. There is no account and no email, and once the Hebrew speech files are on your iPhone it works in airplane mode. Competing tools send a child's voice to a cloud speech service. This one does not have anywhere to send it. HONEST ABOUT WHAT IT IS This is practice between lessons, not a replacement for your tutor. Traditions vary by community, by congregation and by teacher. If your teacher sings a mark differently from this app, your teacher is right. WITHOUT PRO Everything is unlocked for your first 3 days. After that, up to 3 saved graded readings in total. Every portion and both traditions stay open, with no ads. PRO - Unlimited graded readings Subscription Details - Pro Monthly: $4 / month - Pro Annual: $25 / year - Lifetime: $59 one-time Subscriptions auto-renew until cancelled in Settings at least 24 hours before the renewal date. Payment is charged to your Apple ID at confirmation of purchase. Terms of Use (EULA): https://danielius.studio/pink-trope/terms Privacy Policy: https://danielius.studio/pink-trope/privacy
Screenshots
Verdict
The clearest difference is device support: Numerithm at 4 against Pink Trope's 2. Numerithm also leads on iOS requirement (13.0 vs 26.0). On price, ads and in-app purchases 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. Numerithm sells 1 one-off in-app purchase and Pink Trope sells 3 in-app purchases, starting at $4.00 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Numerithm | Pink Trope |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (1 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | — | Every 2 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 32 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Space 64 LLC | Danielius Chalikovas |
In-app purchases
Numerithm
- Full App Unlock$5.99
Pink Trope
- Pro Monthly$4.001 Month
- Pro Annual$25.001 Year
- Lifetime$59.00









