Comparison

Math Says Yes vs Zonlo

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Math Says Yes

Features
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Most statistics sound wrong at first. In a room of 23 people, the odds of a shared birthday are already even. On a game show with three doors, switching after the host opens one doubles your chance of winning. A poll of 1,000 strangers can read a whole country. Math Says Yes is a feed of facts like these, each one explained until the surprise turns into something obvious. Open the app and start scrolling. Every fact is short and sourced, built around a single idea from probability or data. Most come with a quick question that catches your gut before it shows the answer, plus a small chart or a slider you can play with to watch the number move. What's inside: - A scrolling feed of counterintuitive statistics, from the birthday paradox to why tiny samples lie - Quick-check questions tuned to the exact intuition people get wrong - A daily challenge of five questions, so you can find out whether you beat your own guessing - Search and topics for digging into probability, sampling, averages, or plain randomness - Saved facts and a "learned" marker to track what has actually stuck - A glossary that explains the jargon in one paragraph instead of one textbook It costs nothing to read and needs no signup to start. Sign in only if you want to sync saved facts and progress across devices or build a streak. Made for the people who liked statistics in theory but never quite trusted it, and for anyone who enjoys being pleasantly wrong about numbers. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Zonlo

Practice speaking aloud in a private environment before real conversations. This app offers a judgment-free space to rehearse your thoughts using just your voice and a microphone, without any chatbot interaction.

Highlights
  • Private speaking rehearsal
  • No judgment environment
  • Voice-only practice
  • No chatbot interaction
  • Real conversation preparation
Features
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Zonlo is a private space to rehearse speaking out loud before the real conversation happens. No judgment. No chatbot. Just you and a mic.

Screenshots

Math Says Yes4 screens
Zonlo4 screens

Verdict

The call

The clearest difference is in-app purchases: Math Says Yes at none against Zonlo's 3. On price, update cadence, ads and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Zonlo sells 3 in-app purchases, starting at $4.99 per month. Math Says Yes asks for nothing beyond the download.

UpkeepUpdate frequency

Math Says Yes ships an update every 10 days, Zonlo every 5 days. Both last shipped on October 31, 2026.

Scorecard1 real difference · 8 level
Math Says Yes versus Zonlo: the parameters behind the verdict, then further details
ParameterMath Says YesZonlo
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 10 daysEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad — betteriPhone
Requires iOS16.4 — better17.0
Further details — not scored
Size45 MB22 MB
Age rating4+4+
DeveloperToba UG (Haftungsbeschränkt)Corbyn Ledbetter

In-app purchases

None

Math Says Yes

No in-app purchases

3 purchases

Zonlo

Subscriptions2
  • Zonlo Pro Monthly$4.991 Month
  • Zonlo Pro Yearly7 Days trial$29.991 Year
One-time1
  • Zonlo Pro Lifetime$99.99

Questions

Is Math Says Yes free?
Math Says Yes is free to download, with no in-app purchases.
Is Zonlo free?
Zonlo is free to download, with in-app purchases available.
Do Math Says Yes or Zonlo have ads?
Neither Math Says Yes nor Zonlo shows ads.
Which is updated more often, Math Says Yes or Zonlo?
Math Says Yes ships an update every 10 days, and Zonlo every 5 days. Most recently, Math Says Yes was updated on October 31, 2026 and Zonlo on October 31, 2026.

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