Comparison

EulerPad vs ZOHAL

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

Head to head
About

EulerPad

Practice math problems using your own handwriting on screen or paper. Get AI-powered feedback on your steps, not just the final answer. Covers algebra, geometry, trigonometry, calculus, and more.

Highlights
  • Handwritten math problem solving
  • AI tutor feedback on steps
  • On-screen or paper practice
  • Supports Algebra, Geometry, Calculus
  • Custom problem input
  • Daily free practice allowance
Features
Read full description

EulerPad is a math practice workspace for iPhone and iPad. Pick a problem, work it out in your own handwriting, and tap Check — EulerPad's AI tutor reads your work and responds the way a good teacher would: what you got right, where a step went wrong, and what to try next. WRITE IT — ON SCREEN OR ON PAPER Math is learned by hand. EulerPad keeps the paper feel — a full-screen canvas, real ink, your own handwriting with Apple Pencil or your finger — and now works with actual paper too: solve it in your notebook, photograph it, and get the same read. Switch between the two whenever you like. Either way, you get the thing paper can't do on its own: feedback on your work itself, not just your final answer. FEEDBACK THAT TEACHES • Your whole solution is read, step by step — not just the answer • Feedback points to the exact step where things went off track • Mathematical notation is typeset cleanly, like a textbook • Still stuck? See a full worked solution A CURRICULUM THAT GROWS Practice Algebra, Geometry, Trigonometry, Calculus, and more, with new problems and topics arriving all the time — no app update required. YOUR OWN PROBLEMS Working from a textbook or worksheet? Bring the problem with you: type it in and solve it the same way, on screen or on paper, with the same feedback. FREE TO PRACTICE Every account includes a free daily practice allowance. EulerPad Premium, an auto-renewing subscription, raises it for heavier practice — manage or cancel anytime in Settings. PRIVATE BY DEFAULT No sign-up required — open the app and start solving. Sign in with Apple only when you want your work and credits to follow you to another device. Made for iPad and Apple Pencil. Now in your pocket, too. Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://eulerpad-2d8dac.gitlab.io/privacy.html

About

ZOHAL

Features
Read full description

Zohal is calculus practice the way you'd actually do it: on paper. Pick a problem, or circle one from your own PDF worksheet, and start writing with Apple Pencil or your finger. Zohal reads your handwriting as real math — not just the final answer, but every step along the way. -------- Terms of Use: https://zohal.ai/terms Privacy Policy: https://zohal.ai/privacy When you get stuck or make a mistake, Zohal notices. It won't hand you the answer right away. It'll point at the step that's off, ask a question, or give you a hint — the same way a good tutor would, one nudge at a time. WHAT YOU CAN DO - Solve on an infinite handwritten canvas - Practice hundreds of verified calculus problems, from limits to Taylor series - Import a PDF and circle any problem to work on it - Get step-by-step feedback as you write, not just a final grade - Track your progress chapter by chapter and pick up where you left off Zohal is built for people who think better with a pen in hand. No typing equations into a box, no switching between five apps to check your work — just you, the problem, and a tutor watching over your shoulder. Calculus I is where we're starting. More is coming.

Screenshots

EulerPad4 screens
ZOHAL3 screens

Verdict

The call

The clearest difference is iOS requirement: EulerPad at 17.0 against ZOHAL's 26.0. On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. EulerPad sells 7 in-app purchases, starting at $9.99 per month and ZOHAL sells 2 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on October 31, 2026 and November 10, 2026 respectively.

Scorecard1 real difference · 9 level
EulerPad versus ZOHAL: the parameters behind the verdict, then further details
ParameterEulerPadZOHAL
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 2 daysEvery 2 days
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better26.0
Further details — not scored
Size28 MB19 MB
Age rating4+4+
DeveloperSpencer UreskAL WATAD INFORMATION TECHNOLOGY COMPANY

In-app purchases

7 purchases

EulerPad

Subscriptions2
  • EulerPad Premium$9.991 Month
  • EulerPad Premium$79.991 Year
One-time5
  • EulerPad Credits$1.99
  • Small Credit Bundle$3.99
  • Medium Credit Bundle$6.99
Show 2 more
  • Large Credit Bundle$11.99
  • Extra Large Credit Bundle$19.99
2 purchases

ZOHAL

Subscriptions2
  • Zohal Pro$14.991 Month
  • Zohal Pro Semester$79.996 Months

Questions

Is EulerPad free?
EulerPad is free to download, with in-app purchases available.
Is ZOHAL free?
ZOHAL is free to download, with in-app purchases available.
Do EulerPad or ZOHAL have ads?
Neither EulerPad nor ZOHAL shows ads.
Which is updated more often, EulerPad or ZOHAL?
EulerPad ships an update every 2 days, and ZOHAL every 2 days. Most recently, EulerPad was updated on October 31, 2026 and ZOHAL on November 10, 2026.

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